Pub Date : 2024-11-14DOI: 10.1016/j.genrep.2024.102081
Rebecca Barnard, Judith Smith
This publication presents the complete mitochondrial genome of Dama dama along with in depth phylogenetic relationship and species divergence analysis in respect to other Cervidae. The mitochondrial genome presented here is 16,332 bp which is comprised of 13 genes, 2 rRNAs and 22 tRNAs. The mitochondrial genome for Dama dama is the smallest, compared to other Cervidae. Transfer RNA genes have a specific secondary structure, resembling a clover leaf, however, tRNASer (Serine 1) in Dama dama has been found to only have 3 arms, it is missing the dihydrouridine arm. The phylogenetic analysis conducted in this study compared the mitochondrial sequences from 25 different Cervidae species. Findings suggest that Dama dama, compared to other Cervidae, is most closely related to Dama mesopotamica and Megaloceros giganteus. With regards to Dama dama, the species divergence time from Dama mesopotamica and Megaloceros giganteus is 5.68 mya. Whereas the divergence time between Dama mesopotamica and Megaloceros giganteus is 5.35 mya. Our findings provide strong support for the distinction between Dama dama and Dama mesopotamica as a sub-species and a close evolutionary relationship between Dama mesopotamica and Megaloceros giganteus. Supporting previous reports of a sister-group relationship with a shared common ancestor. This study has provided a new perspective on the ancestral origin of the Dama genus, which can be further investigated using the Dama dama mitochondrial genome presented in this report. Understanding the evolution of Dama dama may help to better understand the lack of genetic diversity within the species and advance future management strategies to resolve this.
{"title":"The complete mitochondrial genome of Dama dama, and their phylogenetic relationships to other Cervidae","authors":"Rebecca Barnard, Judith Smith","doi":"10.1016/j.genrep.2024.102081","DOIUrl":"10.1016/j.genrep.2024.102081","url":null,"abstract":"<div><div>This publication presents the complete mitochondrial genome of <em>Dama dama</em> along with in depth phylogenetic relationship and species divergence analysis in respect to other Cervidae. The mitochondrial genome presented here is 16,332 bp which is comprised of 13 genes, 2 rRNAs and 22 tRNAs. The mitochondrial genome for <em>Dama dama</em> is the smallest, compared to other Cervidae. Transfer RNA genes have a specific secondary structure, resembling a clover leaf, however, tRNA<sup>Ser</sup> (Serine 1) in <em>Dama dama</em> has been found to only have 3 arms, it is missing the dihydrouridine arm. The phylogenetic analysis conducted in this study compared the mitochondrial sequences from 25 different Cervidae species. Findings suggest that <em>Dama dama,</em> compared to other Cervidae, is most closely related to <em>Dama mesopotamica</em> and <em>Megaloceros giganteus.</em> With regards to <em>Dama dama</em>, the species divergence time from <em>Dama mesopotamica</em> and <em>Megaloceros giganteus</em> is 5.68 mya. Whereas the divergence time between <em>Dama mesopotamica</em> and <em>Megaloceros giganteus</em> is 5.35 mya. Our findings provide strong support for the distinction between <em>Dama dama</em> and <em>Dama mesopotamica</em> as a sub-species and a close evolutionary relationship between <em>Dama mesopotamica</em> and <em>Megaloceros giganteus</em>. Supporting previous reports of a sister-group relationship with a shared common ancestor. This study has provided a new perspective on the ancestral origin of the <em>Dama</em> genus, which can be further investigated using the <em>Dama dama</em> mitochondrial genome presented in this report. Understanding the evolution of <em>Dama dama</em> may help to better understand the lack of genetic diversity within the species and advance future management strategies to resolve this.</div></div>","PeriodicalId":12673,"journal":{"name":"Gene Reports","volume":"37 ","pages":"Article 102081"},"PeriodicalIF":1.0,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-13DOI: 10.1016/j.genrep.2024.102082
Saiedeh Razi Soofiyani , Elghar Soltani , Masoomeh Kashef Nejad-Khelejani , Reza Ghanbari , Mohammad Yousef Memar
Antimicrobial peptides (AMPs) are involved in the innate immunity of human body to battle microbial pathogens. In addition, human AMPs play also an important role in several biological procedures included cell proliferation, soft tissue damage healing and control of immune response. Hepcidin is a cysteine-rich 25-amino acid AMP produced by the liver and plays an important role in the control of iron homeostasis in the human body. Furthermore, its principal role in iron regulation, hepcidin is also an AMP with wide-spectrum antimicrobial effects on Gram-positive bacteria, Gram-negative bacteria, and fungi without triggering side effects in mammalian cells. Significantly, the bactericidal properties of hepcidin are dependent on the integrity of the disulfide bridges and precise folding of hepcidin. The aims of present study were review the biological effects specially role in iron homeostasis and antimicrobial effects of hepcidin.
{"title":"Hepcidin: A potent antimicrobial peptide involved in iron homeostasis","authors":"Saiedeh Razi Soofiyani , Elghar Soltani , Masoomeh Kashef Nejad-Khelejani , Reza Ghanbari , Mohammad Yousef Memar","doi":"10.1016/j.genrep.2024.102082","DOIUrl":"10.1016/j.genrep.2024.102082","url":null,"abstract":"<div><div>Antimicrobial peptides (AMPs) are involved in the innate immunity of human body to battle microbial pathogens. In addition, human AMPs play also an important role in several biological procedures included cell proliferation, soft tissue damage healing and control of immune response. Hepcidin is a cysteine-rich 25-amino acid AMP produced by the liver and plays an important role in the control of iron homeostasis in the human body. Furthermore, its principal role in iron regulation, hepcidin is also an AMP with wide-spectrum antimicrobial effects on Gram-positive bacteria, Gram-negative bacteria, and fungi without triggering side effects in mammalian cells. Significantly, the bactericidal properties of hepcidin are dependent on the integrity of the disulfide bridges and precise folding of hepcidin. The aims of present study were review the biological effects specially role in iron homeostasis and antimicrobial effects of hepcidin.</div></div>","PeriodicalId":12673,"journal":{"name":"Gene Reports","volume":"37 ","pages":"Article 102082"},"PeriodicalIF":1.0,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-12DOI: 10.1016/j.genrep.2024.102072
Saba Manoochehrabadi , Maryam Behfar , Mohammad Ahmadvand , Amir Ali Hamidieh
Dyskeratosis congenital (DC) is a rare, multi-organ cancer-prone inherited bone marrow failure syndrome (IBMFs) caused by defects in telomere biology. IBMFs manifest as ineffective and stressed hematopoiesis owing to germline mutations that cause the failure of hematopoietic stem cell progenitor cells. The clinical presentation is heterogeneous, and serious clinical complications include bone marrow failure, hematological and solid tumors. Bone marrow failure is the main cause of death, although pulmonary fibrosis, hepatic cirrhosis, and cancer significantly contribute to morbidity and mortality. Currently, there is no specific medical treatment for DC. Hematopoietic stem cell transplantation (HSCT) is the only definitive treatment to restore bone marrow function, although it does not correct other abnormalities. HSCT may be a treatment option in subjects affected by DC and bone marrow failure, but it is associated with a high risk of early and late mortality due to infections, organ damage, and secondary malignancies. However, because of the toxicity associated with this treatment and adverse outcomes of HSCT in DC compared to other IBMFs, improved therapies are recommended for DC patients. As a result, gene therapy techniques based on the genetic modification of autologous hematopoietic stem and progenitor cells (HSPCs) have been explored. This review aims to provide a brief description of the currently known clinical and genetic characteristics, disease progression, and diagnosis and discuss HSCT and emerging strategies for using HSPC gene therapy for DC.
先天性角化不良症(DC)是一种罕见的、易导致多器官癌症的遗传性骨髓衰竭综合征(IBMFs),由端粒生物学缺陷引起。由于种系突变导致造血干细胞祖细胞衰竭,IBMFs表现为无效和受压的造血。临床表现多种多样,严重的临床并发症包括骨髓衰竭、血液肿瘤和实体瘤。骨髓衰竭是死亡的主要原因,但肺纤维化、肝硬化和癌症也是发病和死亡的重要原因。目前,尚无治疗 DC 的特效药物。造血干细胞移植(HSCT)是恢复骨髓功能的唯一确切治疗方法,但不能纠正其他异常。造血干细胞移植可能是受DC和骨髓衰竭影响的患者的一种治疗选择,但由于感染、器官损伤和继发性恶性肿瘤,造血干细胞移植与早期和晚期死亡的高风险相关。然而,由于这种治疗方法存在毒性,而且与其他骨髓造血干细胞移植相比,造血干细胞移植对DC患者的治疗效果不佳,因此建议对DC患者采用改良疗法。因此,人们开始探索基于自体造血干细胞和祖细胞(HSPCs)基因修饰的基因治疗技术。本综述旨在简要介绍目前已知的临床和遗传特征、疾病进展和诊断,并讨论造血干细胞移植和使用 HSPC 基因疗法治疗 DC 的新兴策略。
{"title":"Dyskeratosis congenita future: Hematopoietic stem cell transplantation or gene therapy?","authors":"Saba Manoochehrabadi , Maryam Behfar , Mohammad Ahmadvand , Amir Ali Hamidieh","doi":"10.1016/j.genrep.2024.102072","DOIUrl":"10.1016/j.genrep.2024.102072","url":null,"abstract":"<div><div>Dyskeratosis congenital (DC) is a rare, multi-organ cancer-prone inherited bone marrow failure syndrome (IBMFs) caused by defects in telomere biology. IBMFs manifest as ineffective and stressed hematopoiesis owing to germline mutations that cause the failure of hematopoietic stem cell progenitor cells. The clinical presentation is heterogeneous, and serious clinical complications include bone marrow failure, hematological and solid tumors. Bone marrow failure is the main cause of death, although pulmonary fibrosis, hepatic cirrhosis, and cancer significantly contribute to morbidity and mortality. Currently, there is no specific medical treatment for DC. Hematopoietic stem cell transplantation (HSCT) is the only definitive treatment to restore bone marrow function, although it does not correct other abnormalities. HSCT may be a treatment option in subjects affected by DC and bone marrow failure, but it is associated with a high risk of early and late mortality due to infections, organ damage, and secondary malignancies. However, because of the toxicity associated with this treatment and adverse outcomes of HSCT in DC compared to other IBMFs, improved therapies are recommended for DC patients. As a result, gene therapy techniques based on the genetic modification of autologous hematopoietic stem and progenitor cells (HSPCs) have been explored. This review aims to provide a brief description of the currently known clinical and genetic characteristics, disease progression, and diagnosis and discuss HSCT and emerging strategies for using HSPC gene therapy for DC.</div></div>","PeriodicalId":12673,"journal":{"name":"Gene Reports","volume":"38 ","pages":"Article 102072"},"PeriodicalIF":1.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hermansky-Pudlak syndrome (HPS) is a collection of autosomal recessive multisystemic disorders with at least 11 different types, categorized on the basis of involved genes. The disease is mostly characterized by tyrosinase-positive oculocutaneous albinism (OCA), platelet storage deficiency, absence of platelet dense bodies, and immune deficiency. Here we described a 2-month-old female infant with generalized hypotonia, recurrent infections, bilateral optic atrophy, nystagmus, cerebral atrophy, and elevated liver enzymes. Unlike her parents, she had chestnut colored hair, fair skin, and brown eyes. Parents had a consanguineous marriage, and their first child had died with similar symptoms at the age of 5 months. Whole exome sequencing (WES) was performed on DNA extracted from the patient's peripheral blood. Following the bioinformatics analysis, a likely pathogenic novel variant in the fifth exon of the BLOC1S6 gene (NM_001311255: c.506dupT: p. L169Ffs*33) was introduced by the Sadra Medical Genetic Laboratory. This variant was confirmed in the patient and segregated in both parents by Sanger sequencing.
This report presented the first congenital case of HPS-9 worldwide that might have led to early neonatal death. Our current patient shows new considerable features related to the BLOC1S6 gene variant and HPS-9, which is a valuable source for future research, prediction, clinical management, genetic counseling, and prenatal diagnosing.
赫尔曼斯基-普德拉克综合征(HPS)是一种常染色体隐性多系统疾病,根据涉及的基因分类,至少有 11 种不同类型。该病主要表现为酪氨酸酶阳性的眼皮肤白化病(OCA)、血小板储存缺乏症、血小板致密体缺失和免疫缺陷。本文描述了一名 2 个月大的女婴,她全身肌张力低下、反复感染、双侧视神经萎缩、眼球震颤、脑萎缩和肝酶升高。与父母不同,她有栗色的头发、白皙的皮肤和棕色的眼睛。她的父母是近亲结婚,他们的第一个孩子在5个月大时因类似症状夭折。对从患者外周血中提取的 DNA 进行了全外显子组测序(WES)。经过生物信息学分析,萨德拉医学遗传实验室在 BLOC1S6 基因的第五外显子上发现了一个可能致病的新型变异体(NM_001311255: c.506dupT: p. L169Ffs*33)。通过桑格测序,该变异在患者体内得到证实,并在患者父母中得到分离。该报告介绍了全球首例可能导致新生儿早期死亡的先天性 HPS-9 病例。我们的患者显示出了与 BLOC1S6 基因变异和 HPS-9 相关的新的重要特征,这对未来的研究、预测、临床管理、遗传咨询和产前诊断具有重要价值。
{"title":"A likely pathogenic homozygous frameshift variant in BLOC1S6 associated with a rare form of congenital Hermansky-Pudlak syndrome 9","authors":"Ahoura Nozari , Paria Babaahmadi , Anahita Farahzad Boroujeni , Roya Choopani , Taha Sadeghi , Korosh Heydari , Alireza Sadeghi","doi":"10.1016/j.genrep.2024.102086","DOIUrl":"10.1016/j.genrep.2024.102086","url":null,"abstract":"<div><div>Hermansky-Pudlak syndrome (HPS) is a collection of autosomal recessive multisystemic disorders with at least 11 different types, categorized on the basis of involved genes. The disease is mostly characterized by tyrosinase-positive oculocutaneous albinism (OCA), platelet storage deficiency, absence of platelet dense bodies, and immune deficiency. Here we described a 2-month-old female infant with generalized hypotonia, recurrent infections, bilateral optic atrophy, nystagmus, cerebral atrophy, and elevated liver enzymes. Unlike her parents, she had chestnut colored hair, fair skin, and brown eyes. Parents had a consanguineous marriage, and their first child had died with similar symptoms at the age of 5 months. Whole exome sequencing (WES) was performed on DNA extracted from the patient's peripheral blood. Following the bioinformatics analysis, a likely pathogenic novel variant in the fifth exon of the <em>BLOC1S6</em> gene (NM_001311255: c.506dupT: p. L169Ffs*33) was introduced by the Sadra Medical Genetic Laboratory. This variant was confirmed in the patient and segregated in both parents by Sanger sequencing.</div><div>This report presented the first congenital case of HPS-9 worldwide that might have led to early neonatal death. Our current patient shows new considerable features related to the <em>BLOC1S6</em> gene variant and HPS-9, which is a valuable source for future research, prediction, clinical management, genetic counseling, and prenatal diagnosing.</div></div>","PeriodicalId":12673,"journal":{"name":"Gene Reports","volume":"37 ","pages":"Article 102086"},"PeriodicalIF":1.0,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
<div><h3>Background</h3><div>Patients with COVID-19 have an increased risk of thrombosis and coagulopathy. Homocysteine, an amino acid essential to coagulation, is thought to be involved in such conditions, as its level is mediated by the presence of some single nucleotide polymorphisms (SNPs) in certain genes including <em>MTHFR</em>, <em>MTR</em> and <em>MTRR</em>.</div></div><div><h3>Aim</h3><div>The current study aimed to assess the significant role of <em>MTHFR</em> (C677T and A1298C), <em>MTR</em> A2756G and <em>MTRR</em> A66G SNPs as risk factors for thrombosis among Egyptian COVID-19 patients and their effect on homocysteine level.</div></div><div><h3>Subjects and methods</h3><div>This case-control study was carried out on 90 Egyptian COVID-19 cases, divided into 45 non-complicated cases and 45 complicated cases with thrombosis, in addition to 80 healthy control individuals. DNA was isolated from blood samples of all the participants. The genotyping was performed using real-time PCR; in addition, serum homocysteine level was estimated.</div></div><div><h3>Results</h3><div>The <em>MTHFR</em> (C677T and A1298C), <em>MTR</em> A2756G and <em>MTRR</em> A66G variants revealed a significant higher risk of thrombosis under different genetic models including the homozygous comparison of the co-dominant (20 % vs. 2.3 %, OR = 15.88, <em>p</em> = 0.007), the dominant (62.2 % vs. 33.3 % OR = 3.29, <em>p</em> = 0.006) and the allelic models (41.1 % vs. 17.8 %, OR = 3.2, <em>p</em> < 0.001) for <em>MTHFR</em> C677T and also the dominant (77.8 % vs. 51.1 %, OR = 3.3, <em>p</em> = 0.008) and the allelic models (52.2 % vs. 31.1 %, OR = 2.4, <em>p</em> = 0.004) for <em>MTHFR</em> A1298C. In addition, the heterozygous comparison of the co-dominant (60 vs. 11.1, OR = 12.7, <em>p</em> < 0.001), the dominant (62.2 % vs. 11.1 %, OR = 13.1, <em>p</em> < 0.001) and the allelic models (32.2 % vs. 5.6 %, OR = 8.08, <em>p</em> < 0.001) for <em>MTR</em> A2756G and the heterozygous and homozygous comparisons of the co-dominant model [(53.3 % vs. 31.1 %, OR = 3.4, <em>p</em> = 0.03) and (13.4 % vs. 2.2 %, OR = 12.0, <em>p</em> = 0.049), respectively], the dominant (66.4 % vs. 33.3 %, OR = 4.0, <em>p</em> = 0.001) and the allelic models (40 % vs. 17.8 %, OR = 3, <em>p</em> = 0.001) for <em>MTRR</em> A66G. Moreover, <em>MTHFR</em> (C677T and A1298C), <em>MTR</em> A2756G, and <em>MTRR</em> A66G variants were also associated with high levels of serum homocysteine (<em>p</em> = 0.045, 0.001, 0.005 and 0.039, respectively). The homocysteine level was related to the disease severity by its correlation with higher LDH (rs = 0.49, <em>p</em> < 0.001), CRP (rs = 0.44, <em>p</em> < 0.001), IL-6 (rs = 0.46, <em>p</em> < 0.001) and D-dimer (rs = 0.66, <em>p</em> < 0.001) levels. The multivariate regression analysis showed that homocysteine and the dominant models of <em>MTHFR</em> (C677T and A1298C), <em>MTR</em> A2756G and <em>MTRR</em> A66G were independent
{"title":"Association of thrombophilic genes (MTHFR, MTR and MTRR) polymorphisms and homocysteine level in relation to the increased risk of thrombosis among COVID-19 patients","authors":"Mohamed El-Ghonaimy , Mohamed El-Deeb , Shaimaa El-Ashwah , Manal Fouda , Menna Al-Adl , Ahmed EL-Sebaie","doi":"10.1016/j.genrep.2024.102085","DOIUrl":"10.1016/j.genrep.2024.102085","url":null,"abstract":"<div><h3>Background</h3><div>Patients with COVID-19 have an increased risk of thrombosis and coagulopathy. Homocysteine, an amino acid essential to coagulation, is thought to be involved in such conditions, as its level is mediated by the presence of some single nucleotide polymorphisms (SNPs) in certain genes including <em>MTHFR</em>, <em>MTR</em> and <em>MTRR</em>.</div></div><div><h3>Aim</h3><div>The current study aimed to assess the significant role of <em>MTHFR</em> (C677T and A1298C), <em>MTR</em> A2756G and <em>MTRR</em> A66G SNPs as risk factors for thrombosis among Egyptian COVID-19 patients and their effect on homocysteine level.</div></div><div><h3>Subjects and methods</h3><div>This case-control study was carried out on 90 Egyptian COVID-19 cases, divided into 45 non-complicated cases and 45 complicated cases with thrombosis, in addition to 80 healthy control individuals. DNA was isolated from blood samples of all the participants. The genotyping was performed using real-time PCR; in addition, serum homocysteine level was estimated.</div></div><div><h3>Results</h3><div>The <em>MTHFR</em> (C677T and A1298C), <em>MTR</em> A2756G and <em>MTRR</em> A66G variants revealed a significant higher risk of thrombosis under different genetic models including the homozygous comparison of the co-dominant (20 % vs. 2.3 %, OR = 15.88, <em>p</em> = 0.007), the dominant (62.2 % vs. 33.3 % OR = 3.29, <em>p</em> = 0.006) and the allelic models (41.1 % vs. 17.8 %, OR = 3.2, <em>p</em> < 0.001) for <em>MTHFR</em> C677T and also the dominant (77.8 % vs. 51.1 %, OR = 3.3, <em>p</em> = 0.008) and the allelic models (52.2 % vs. 31.1 %, OR = 2.4, <em>p</em> = 0.004) for <em>MTHFR</em> A1298C. In addition, the heterozygous comparison of the co-dominant (60 vs. 11.1, OR = 12.7, <em>p</em> < 0.001), the dominant (62.2 % vs. 11.1 %, OR = 13.1, <em>p</em> < 0.001) and the allelic models (32.2 % vs. 5.6 %, OR = 8.08, <em>p</em> < 0.001) for <em>MTR</em> A2756G and the heterozygous and homozygous comparisons of the co-dominant model [(53.3 % vs. 31.1 %, OR = 3.4, <em>p</em> = 0.03) and (13.4 % vs. 2.2 %, OR = 12.0, <em>p</em> = 0.049), respectively], the dominant (66.4 % vs. 33.3 %, OR = 4.0, <em>p</em> = 0.001) and the allelic models (40 % vs. 17.8 %, OR = 3, <em>p</em> = 0.001) for <em>MTRR</em> A66G. Moreover, <em>MTHFR</em> (C677T and A1298C), <em>MTR</em> A2756G, and <em>MTRR</em> A66G variants were also associated with high levels of serum homocysteine (<em>p</em> = 0.045, 0.001, 0.005 and 0.039, respectively). The homocysteine level was related to the disease severity by its correlation with higher LDH (rs = 0.49, <em>p</em> < 0.001), CRP (rs = 0.44, <em>p</em> < 0.001), IL-6 (rs = 0.46, <em>p</em> < 0.001) and D-dimer (rs = 0.66, <em>p</em> < 0.001) levels. The multivariate regression analysis showed that homocysteine and the dominant models of <em>MTHFR</em> (C677T and A1298C), <em>MTR</em> A2756G and <em>MTRR</em> A66G were independent","PeriodicalId":12673,"journal":{"name":"Gene Reports","volume":"37 ","pages":"Article 102085"},"PeriodicalIF":1.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-08DOI: 10.1016/j.genrep.2024.102084
Saheli Bose , Nirmalya Dey
Dysregulated physiological pathways are a hallmark of metabolic syndromes and often act as cancer risk factors. MicroRNAs (miRNAs) have become important regulators of many biological processes, including growth, development and metabolism. MicroRNAs often play a dual role in metabolic syndromes and cancer development through the modulation of pathways that affect cell proliferation, energy balance, and cellular stress responses. Obesity, insulin resistance, type 2 Diabetes, cardiovascular diseases, hypertension, dyslipidemia do always remain ‘list toppers’ since the inception of the concept of ‘metabolic syndrome’. Aberrantly expressed miRNAs exhibit to play a pivotal role in disturbed metabolic pathways, chronic inflammation, and oxidative stress rendering people predisposed to these metabolic disorders. MicroRNAs can diagnose and predict outcomes in various pathophysiological instances. Hence, miRNA profiles can act as biomarkers for early illness diagnosis, disease progression, and treatment response. The complex crosstalk between different metabolic pathways may be managed by using miRNAs as therapeutic targets or tools for precision medicine. The current review focuses on elaborating the complex functions played by miRNAs in bridging the gap between the unexplored areas of metabolic syndromes, keeping cancer off this discussion.
{"title":"MicroRNAs: Tiny biomolecules with soaring impact in regulation of metabolic syndrome","authors":"Saheli Bose , Nirmalya Dey","doi":"10.1016/j.genrep.2024.102084","DOIUrl":"10.1016/j.genrep.2024.102084","url":null,"abstract":"<div><div>Dysregulated physiological pathways are a hallmark of metabolic syndromes and often act as cancer risk factors. MicroRNAs (miRNAs) have become important regulators of many biological processes, including growth, development and metabolism. MicroRNAs often play a dual role in metabolic syndromes and cancer development through the modulation of pathways that affect cell proliferation, energy balance, and cellular stress responses. Obesity, insulin resistance, type 2 Diabetes, cardiovascular diseases, hypertension, dyslipidemia do always remain ‘list toppers’ since the inception of the concept of ‘metabolic syndrome’. Aberrantly expressed miRNAs exhibit to play a pivotal role in disturbed metabolic pathways, chronic inflammation, and oxidative stress rendering people predisposed to these metabolic disorders. MicroRNAs can diagnose and predict outcomes in various pathophysiological instances. Hence, miRNA profiles can act as biomarkers for early illness diagnosis, disease progression, and treatment response. The complex crosstalk between different metabolic pathways may be managed by using miRNAs as therapeutic targets or tools for precision medicine. The current review focuses on elaborating the complex functions played by miRNAs in bridging the gap between the unexplored areas of metabolic syndromes, keeping cancer off this discussion.</div></div>","PeriodicalId":12673,"journal":{"name":"Gene Reports","volume":"37 ","pages":"Article 102084"},"PeriodicalIF":1.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-07DOI: 10.1016/j.genrep.2024.102083
Veera Krishna Goud , Alladi Charanraj Goud , Sivaranjini Ramassamy , M. Jayanthi , R. Medha , Laxmisha Chandrashekar
Background
Psoriasis is a chronic inflammatory skin disease characterised by hyperproliferation of keratinocytes and abnormal immune response. It manifests in genetically predisposed individuals exposed to environmental triggers like infections, drugs, stress, and trauma. Epigenetic mechanisms are a critical component of the complex etiopathogenesis of psoriasis, as they modulate gene expression and increase disease risk. There are many conflicting reports regarding DNA methylation in patients with psoriasis. This could well reflect the choice of tissue and technique used. Data on whole blood DNA methylation in psoriasis is sparse.
Objective
The present study aims to measure the levels of DNA methylation [5-methylcytosine (5-mC)] in psoriatic patients from whole blood pre and post-treatment with methotrexate and its correlation with disease severity.
Methods
We recruited thirty cases of psoriasis vulgaris and 30 healthy controls. Thirty psoriatic patients were on methotrexate treatment and followed up for three months. 5-methylcytosine was measured using a global DNA methylation ELISA kit.
Results
The 5-methylcytosine levels from whole blood DNA were 8.13±1.89 % in cases and 5.37±2.33 % in controls, which was statistically significant (p = 0.0001). Post-treatment with methotrexate, there was a significant reduction (p = 0.0001) in the 5-methylcytosine levels in cases (4.54±1.74 %). Pre and post-treatment 5-methylcytosine levels were not significantly associated with the Psoriasis Area Severity Index (PASI) score.
Conclusion
Patients with psoriasis have whole-blood DNA global hypermethylation. Treatment with methotrexate leads to a significant reduction in DNA hypermethylation.
背景银屑病是一种慢性炎症性皮肤病,以角质细胞过度增殖和异常免疫反应为特征。它主要发生在易受感染、药物、压力和创伤等环境诱因影响的遗传易感人群中。表观遗传机制是银屑病复杂发病机制的重要组成部分,因为它们会调节基因表达并增加患病风险。关于银屑病患者的 DNA 甲基化,有许多相互矛盾的报道。这很可能反映了所选择的组织和所使用的技术。本研究旨在测量甲氨蝶呤治疗前后银屑病患者全血中 DNA 甲基化[5-甲基胞嘧啶(5-mC)]的水平及其与疾病严重程度的相关性。30 名银屑病患者接受了甲氨蝶呤治疗,并随访了三个月。结果病例全血DNA中的5-甲基胞嘧啶含量为8.13±1.89%,对照组为5.37±2.33%,差异有统计学意义(P = 0.0001)。甲氨蝶呤治疗后,病例的 5-甲基胞嘧啶水平(4.54±1.74 %)明显下降(p = 0.0001)。治疗前和治疗后的 5-甲基胞嘧啶水平与银屑病面积严重程度指数(PASI)评分无明显关联。结论银屑病患者的全血DNA整体高甲基化,甲氨蝶呤治疗可显著降低DNA高甲基化。
{"title":"Whole blood global DNA methylation [5-methylcytosine (5-mC)] levels in psoriatic patients before and after methotrexate treatment","authors":"Veera Krishna Goud , Alladi Charanraj Goud , Sivaranjini Ramassamy , M. Jayanthi , R. Medha , Laxmisha Chandrashekar","doi":"10.1016/j.genrep.2024.102083","DOIUrl":"10.1016/j.genrep.2024.102083","url":null,"abstract":"<div><h3>Background</h3><div>Psoriasis is a chronic inflammatory skin disease characterised by hyperproliferation of keratinocytes and abnormal immune response. It manifests in genetically predisposed individuals exposed to environmental triggers like infections, drugs, stress, and trauma. Epigenetic mechanisms are a critical component of the complex etiopathogenesis of psoriasis, as they modulate gene expression and increase disease risk. There are many conflicting reports regarding DNA methylation in patients with psoriasis. This could well reflect the choice of tissue and technique used. Data on whole blood DNA methylation in psoriasis is sparse.</div></div><div><h3>Objective</h3><div>The present study aims to measure the levels of DNA methylation [5-methylcytosine (5-mC)] in psoriatic patients from whole blood pre and post-treatment with methotrexate and its correlation with disease severity.</div></div><div><h3>Methods</h3><div>We recruited thirty cases of psoriasis vulgaris and 30 healthy controls. Thirty psoriatic patients were on methotrexate treatment and followed up for three months. 5-methylcytosine was measured using a global DNA methylation ELISA kit.</div></div><div><h3>Results</h3><div>The 5-methylcytosine levels from whole blood DNA were 8.13±1.89 % in cases and 5.37±2.33 % in controls, which was statistically significant (<em>p</em> = 0.0001). Post-treatment with methotrexate, there was a significant reduction (p = 0.0001) in the 5-methylcytosine levels in cases (4.54±1.74 %). Pre and post-treatment 5-methylcytosine levels were not significantly associated with the Psoriasis Area Severity Index (PASI) score.</div></div><div><h3>Conclusion</h3><div>Patients with psoriasis have whole-blood DNA global hypermethylation. Treatment with methotrexate leads to a significant reduction in DNA hypermethylation.</div></div>","PeriodicalId":12673,"journal":{"name":"Gene Reports","volume":"37 ","pages":"Article 102083"},"PeriodicalIF":1.0,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-06DOI: 10.1016/j.genrep.2024.102080
Jin Changyu , Hu Huijie , Li Qingqing , Lai Yanli , Wang Jiaping , Mu Qitian , Ouyang Guifang , Sheng Lixia
In patients with recurrent anemia, jaundice, and splenomegaly, a thorough assessment of family history and peripheral blood smears is crucial for diagnosing hereditary spherocytosis (HS). Furthermore, gene sequencing can enhance diagnostic accuracy and facilitate the investigation of disease mechanisms at the molecular level. In this report, we present a case of HS caused by a heterozygous nonsense mutation in the SPTB gene, along with a family history of this specific mutation. A 35-year-old man was evaluated for jaundice and splenomegaly, which he had experienced since childhood. Blood tests revealed anemia, reticulocytosis, elevated indirect bilirubin levels, and an increased percentage of spherical red blood cells in the peripheral blood. His family history indicated that both his father and daughter exhibited similar clinical manifestations. Subsequently, genetic sequencing confirmed that the patient, along with his father and daughter, shared the heterozygous missense mutation c.155G > A (p.Arg52Gln) in the SPTB gene, which is absent in public population and animal sequence databases. Structural prediction analysis of the protein suggests that this mutation may lead to instability of SPTB mRNA, thereby affecting the synthesis of the spectrin protein and the integrity of the red blood cell membrane skeleton. Further research is needed to clarify the exact relationship between this mutation and the occurrence of HS.
{"title":"New mutation in the β-spectrin gene in hereditary spherocytosis: A case report","authors":"Jin Changyu , Hu Huijie , Li Qingqing , Lai Yanli , Wang Jiaping , Mu Qitian , Ouyang Guifang , Sheng Lixia","doi":"10.1016/j.genrep.2024.102080","DOIUrl":"10.1016/j.genrep.2024.102080","url":null,"abstract":"<div><div>In patients with recurrent anemia, jaundice, and splenomegaly, a thorough assessment of family history and peripheral blood smears is crucial for diagnosing hereditary spherocytosis (HS). Furthermore, gene sequencing can enhance diagnostic accuracy and facilitate the investigation of disease mechanisms at the molecular level. In this report, we present a case of HS caused by a heterozygous nonsense mutation in the SPTB gene, along with a family history of this specific mutation. A 35-year-old man was evaluated for jaundice and splenomegaly, which he had experienced since childhood. Blood tests revealed anemia, reticulocytosis, elevated indirect bilirubin levels, and an increased percentage of spherical red blood cells in the peripheral blood. His family history indicated that both his father and daughter exhibited similar clinical manifestations. Subsequently, genetic sequencing confirmed that the patient, along with his father and daughter, shared the heterozygous missense mutation c.155G > A (p.Arg52Gln) in the SPTB gene, which is absent in public population and animal sequence databases. Structural prediction analysis of the protein suggests that this mutation may lead to instability of SPTB mRNA, thereby affecting the synthesis of the spectrin protein and the integrity of the red blood cell membrane skeleton. Further research is needed to clarify the exact relationship between this mutation and the occurrence of HS.</div></div>","PeriodicalId":12673,"journal":{"name":"Gene Reports","volume":"37 ","pages":"Article 102080"},"PeriodicalIF":1.0,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1016/j.genrep.2024.102078
Isis Samy Bedira , Ibrahim El Tantawy El Sayed , Olfat M. Hendy , Mohamed Abdel-Samiee , Amany Mohamed Rashad , Ahmed B. Zaid
Background
HNF1A gene variants have been reported to be involved in developing mature onset diabetes mellitus (DM). Many studies reported the role of DM as a risk factor for hepatocellular carcinoma (HCC) development. To date, it has not been reported whether HNF1A gene variants are associated with the risk of DM in cirrhotic patients and their subsequent HCC.
Objective
To evaluate the HNF1A (the hepatocyte nuclear factor 1 homeobox A) genetic variants as a cofactor with DM for HCC development in hepatitis C virus (HCV)-infected patients.
Subjects and methods
This study was conducted on 140 subjects; 30 had HCC without DM, 30 HCC with DM, and 40 patients had DM with no HCV infection or had HCC; in addition, 80 healthy volunteers with matched ages and genders were enrolled in the study as a control group. Liver function tests, hepatitis viral markers, alpha-fetoprotein (AFP), fasting sugar and HBA1c and HNF1A (rs2464196 and rs1169310) using real-time polymerase chain reaction (PCR) were done for all participants.
Results
The frequency of HNF1A rs2464196 (AA) genotype in patient groups (DM, HCC, HCC + DM) was significantly higher compared to the control group (P = 0.006, P = 0.018, P < 0.001 respectively). The combined dominant model (AA + GA) of rs 2464196 was significantly higher than the (GG) genotype in patient groups (DM, HCC, HCC + DM) than the control group. In addition, the frequency of the AA genotype is more prevalent in HCC + DM (73 %) compared to the group of DM or HCC patients. In contrast, the HNF1A rs1169310 (TT, TC or CC genotypes) showed no significant difference among the four studied groups and their T or C allele distributions.
Conclusion
This finding suggested that the HNF1A rs2464196 (AA) genotype could be associated with DM and may raise the possibility of HCC development among HCV-infected patients who harbour this genotype more than (GG). On the contrary, the HNF1A rs1169310 polymorphism was of no significance as a risk factor in the current study. However, as we limited our study to Egyptian participants, more research on other ethnic groups would be required. Also, large scale studies are recommended on other variants of HNF1A to clarify the role of this gene in HCC development.
{"title":"Hepatocyte nuclear factor 1 alpha variants as risk factor for hepatocellular carcinoma development with and without diabetes mellitus","authors":"Isis Samy Bedira , Ibrahim El Tantawy El Sayed , Olfat M. Hendy , Mohamed Abdel-Samiee , Amany Mohamed Rashad , Ahmed B. Zaid","doi":"10.1016/j.genrep.2024.102078","DOIUrl":"10.1016/j.genrep.2024.102078","url":null,"abstract":"<div><h3>Background</h3><div>HNF1A gene variants have been reported to be involved in developing mature onset diabetes mellitus (DM). Many studies reported the role of DM as a risk factor for hepatocellular carcinoma (HCC) development. To date, it has not been reported whether HNF1A gene variants are associated with the risk of DM in cirrhotic patients and their subsequent HCC.</div></div><div><h3>Objective</h3><div>To evaluate the HNF1A (the hepatocyte nuclear factor 1 homeobox A) genetic variants as a cofactor with DM for HCC development in hepatitis C virus (HCV)-infected patients.</div></div><div><h3>Subjects and methods</h3><div>This study was conducted on 140 subjects; 30 had HCC without DM, 30 HCC with DM, and 40 patients had DM with no HCV infection or had HCC; in addition, 80 healthy volunteers with matched ages and genders were enrolled in the study as a control group. Liver function tests, hepatitis viral markers, alpha-fetoprotein (AFP), fasting sugar and HBA1c and HNF1A (rs2464196 and rs1169310) using real-time polymerase chain reaction (PCR) were done for all participants.</div></div><div><h3>Results</h3><div>The frequency of HNF1A rs2464196 (AA) genotype in patient groups (DM, HCC, HCC + DM) was significantly higher compared to the control group (<em>P</em> = 0.006, <em>P</em> = 0.018, <em>P</em> < 0.001 respectively). The combined dominant model (AA + GA) of rs 2464196 was significantly higher than the (GG) genotype in patient groups (DM, HCC, HCC + DM) than the control group. In addition, the frequency of the AA genotype is more prevalent in HCC + DM (73 %) compared to the group of DM or HCC patients. In contrast, the HNF1A rs1169310 (TT, TC or CC genotypes) showed no significant difference among the four studied groups and their T or C allele distributions.</div></div><div><h3>Conclusion</h3><div>This finding suggested that the HNF1A rs2464196 (AA) genotype could be associated with DM and may raise the possibility of HCC development among HCV-infected patients who harbour this genotype more than (GG). On the contrary, the HNF1A rs1169310 polymorphism was of no significance as a risk factor in the current study. However, as we limited our study to Egyptian participants, more research on other ethnic groups would be required. Also, large scale studies are recommended on other variants of HNF1A to clarify the role of this gene in HCC development.</div></div>","PeriodicalId":12673,"journal":{"name":"Gene Reports","volume":"37 ","pages":"Article 102078"},"PeriodicalIF":1.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1016/j.genrep.2024.102079
Joel Henrique Ellwanger, José Artur Bogo Chies
Growing evidence suggests that tattoos may be associated with an increased risk of cancer development due to carcinogenic components present in tattoo inks. We explored this issue using The Comparative Toxicogenomics Database. Exploratory toxicogenomic data corroborate the association between cancer and tattoo ink components, especially concerning the effects of polycyclic aromatic hydrocarbons (PAH). The top-15 genes affected by PAH and the top-15 diseases associated with PAH were listed. Polycyclic aromatic hydrocarbons and other components present in tattoo inks affect the expression of multiple genes that participate in the metabolism of xenobiotics, cell death, and immune responses, and disruption of these processes may facilitate carcinogenesis. In agreement, cancer is the main disease category associated with PAH. In Brazil and other countries, there are significant deficiencies in the regulation, marketing, and inspection of substances used in tattoo inks. Considering the immense number of individuals who get tattoos around the world, tattoo inks should be subjected to more complete toxicological studies, and stricter regulation of tattoo ink usage is needed.
{"title":"Toxicogenomics supports carcinogenic action of tattoo ink components","authors":"Joel Henrique Ellwanger, José Artur Bogo Chies","doi":"10.1016/j.genrep.2024.102079","DOIUrl":"10.1016/j.genrep.2024.102079","url":null,"abstract":"<div><div>Growing evidence suggests that tattoos may be associated with an increased risk of cancer development due to carcinogenic components present in tattoo inks. We explored this issue using The Comparative Toxicogenomics Database. Exploratory toxicogenomic data corroborate the association between cancer and tattoo ink components, especially concerning the effects of polycyclic aromatic hydrocarbons (PAH). The top-15 genes affected by PAH and the top-15 diseases associated with PAH were listed. Polycyclic aromatic hydrocarbons and other components present in tattoo inks affect the expression of multiple genes that participate in the metabolism of xenobiotics, cell death, and immune responses, and disruption of these processes may facilitate carcinogenesis. In agreement, cancer is the main disease category associated with PAH. In Brazil and other countries, there are significant deficiencies in the regulation, marketing, and inspection of substances used in tattoo inks. Considering the immense number of individuals who get tattoos around the world, tattoo inks should be subjected to more complete toxicological studies, and stricter regulation of tattoo ink usage is needed.</div></div>","PeriodicalId":12673,"journal":{"name":"Gene Reports","volume":"37 ","pages":"Article 102079"},"PeriodicalIF":1.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}