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Upregulation of miR-142 in papillary thyroid carcinoma tissues: a report based on in silico and in vitro analysis. miR-142在甲状腺乳头状癌组织中的上调:基于计算机和体外分析的报告。
IF 1.6 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2022-01-01 DOI: 10.22099/mbrc.2022.43947.1757
Sepehr Valizadeh, Mojtaba Zehtabi, Neda Feiziordaklou, Zahra Akbarpour, Amir Mahdi Khamaneh, Mortaza Raeisi

Papillary thyroid carcinoma (PTC) accounts for approximately 80% of all human thyroid malignancies. Recently, there has been a dramatic rise in the prevalence of thyroid cancer all over the globe. Through analysis of the GEO database, GSE104005, the authors of the current research were able to determine the differential expression of microRNAs (DEMs) as well as their target genes. Real-time PCR was used on a total of 40 samples, 40 of which were from PTC samples and 40 from normal tissues, in order to validate the discovered DEMs and the genes. Gene Ontology (GO) categories were identified, and KEGG was used to conduct pathway enrichment analysis. The multiMiR R package was used to predict target genes of DEMs. Mir-142 was found to be overexpressed in PTC samples, as compared to normal tissues, and this was validated by the identification and validation. In addition, metal ion binding and the cellular response to metal ions were identified as essential pathways in the carcinogenesis of PTC. This demonstrates their significance in the development of this malignancy. The results of our research will serve as the foundation for further research in the area of miRNA-based cancer treatment.

甲状腺乳头状癌(PTC)约占所有人类甲状腺恶性肿瘤的80%。最近,全球甲状腺癌的发病率急剧上升。通过对GEO数据库GSE104005的分析,本研究的作者能够确定microRNAs (DEMs)及其靶基因的差异表达。Real-time PCR共检测40个样本,其中40个来自PTC样本,40个来自正常组织,以验证所发现的dem和基因。确定基因本体(Gene Ontology, GO)分类,使用KEGG进行途径富集分析。使用multiMiR R包预测dem的靶基因。与正常组织相比,Mir-142在PTC样本中被发现过表达,这一点通过鉴定和验证得到了验证。此外,金属离子结合和细胞对金属离子的反应被确定为PTC癌变的重要途径。这表明了它们在恶性肿瘤发展中的重要性。我们的研究结果将作为基于mirna的癌症治疗领域进一步研究的基础。
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引用次数: 0
Investigating the association of toll-like receptor 9 rs5743836, rs352140, and rs187084 gene polymorphisms and their mRNA levels with different hepatic fibrosis stages of non-alcoholic fatty liver patients compared to healthy controls. 研究toll样受体9 rs5743836、rs352140和rs187084基因多态性及其mRNA水平与非酒精性脂肪肝患者不同肝纤维化阶段的关系
IF 1.6 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2022-01-01 DOI: 10.22099/mbrc.2022.43852.1753
Azadeh Rezaie, Meysam Nasiri, Behzad Hatami, Kaveh Baghaie, Hamid Asadzadeh-Aghdaei, Mohammad Reza Zali

Recent studies have shown that the level of hepatocyte-derived mitochondrial DNA is elevated in plasma samples obtained from mice and NASH patients, and it has the ability to toll-like receptor 9 (TLR9) activation resulting in steatosis, hepatocyte injury, and fibrosis. In this study, we explored the association between TLR9 rs5743836, rs352140, and rs187084 polymorphism and its plasma mRNA level in non-alcoholic fatty liver (NAFL) patients with different liver fibrosis scores compared to healthy controls. Seventy Iranian patients diagnosed with NAFL, based on fibroscan testing results, were divided into F0-F1 (N=33), F2-F3 (N=19), and F4 (N=18) hepatic fibrosis groups and compared to 22 healthy controls. Genotyping was done using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and the mRNA expression level of TLR9 was determined using Real-Time PCR analysis. Results showed no significant association between allelic and genotypic distribution frequency of TLR9 rs5743836, rs352140, and rs187084 polymorphisms in NAFL patients with hepatic fibrosis compared to healthy controls (P>0.05). However, the mRNA level of TLR9 was significantly elevated in correlation with hepatic fibrosis progression in NAFL patients compared to healthy controls (P<0.05). As a preliminary study, our data showed a correlative overexpression of TLR9 mRNA with hepatic fibrosis progression in NAFL patients without the effectiveness of TLR9 gene polymorphisms.

最近的研究表明,从小鼠和NASH患者获得的血浆样本中,肝细胞来源的线粒体DNA水平升高,并且它具有toll样受体9 (TLR9)激活的能力,导致脂肪变性、肝细胞损伤和纤维化。在本研究中,我们探讨了不同肝纤维化评分的非酒精性脂肪肝(NAFL)患者与健康对照组之间TLR9、rss5743836、rs352140和rs187084多态性及其血浆mRNA水平的相关性。根据纤维扫描检测结果,将70例确诊为NAFL的伊朗患者分为F0-F1 (N=33)、F2-F3 (N=19)和F4 (N=18)肝纤维化组,并与22例健康对照进行比较。采用聚合酶链反应-限制性片段长度多态性(PCR- rflp)进行基因分型,Real-Time PCR检测TLR9 mRNA表达水平。结果显示,NAFL合并肝纤维化患者TLR9、rss5743836、rs352140、rs187084等位基因多态性与基因型分布频率无显著相关性(P>0.05)。然而,与健康对照组相比,TLR9 mRNA水平与NAFL患者肝纤维化进展相关(PTLR9 mRNA与无TLR9基因多态性的NAFL患者肝纤维化进展相关)。
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引用次数: 0
Polymorphisms in CFI and ARMS genes and exudative age-related macular degeneration: Correspondence. CFI和ARMS基因多态性与渗出性年龄相关性黄斑变性:对应关系。
IF 1.6 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2022-01-01 DOI: 10.22099/mbrc.2022.44737.1782
Rujittika Mungmunpuntipantip, Viroj Wiwanitkit
ideas on the publication “Characterization of polymorphisms in CFI and ARMS genes and their association with exudative age-related macular degeneration in Algerian patients [1].”
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引用次数: 0
Novel RNA extraction method from human tears. 从人泪液中提取RNA的新方法。
IF 1.6 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2022-01-01 DOI: 10.22099/mbrc.2022.45266.1801
Mahintaj Dara, Azam Habibi, Negar Azarpira, Mehdi Dianatpour, Mahmood Nejabat, Amir Khosravi, Nader Tanideh

Human tears can be used as a noninvasive source of genetic materials and biomarkers in the prognosis and diagnosis of ocular and non-ocular diseases. The present protocol is a novel direct RNA extraction method from tears. This study aims to provide a suitable method for direct extraction of RNA from tears with high quality and quantity. In this study, we develop a TRIzol base protocol for direct RNA extraction from human tears. quality and quantity of extracted RNA measured by calculation of 260/280 UV absorption ratio using Nanodrop and real-time PCR. RNA was extracted with this modified method and a purified (260/280 UV absorption ratio between 1.8 to 2 and a high yield of total RNA, on average 95 μg, from tears was extracted. In conclusion, we developed an easy and suitable method for direct extraction of total RNA from tears with high quality and quantity.

人的眼泪可以作为一种无创的遗传物质和生物标志物,用于眼部和非眼部疾病的预后和诊断。本方案是一种从泪液中直接提取RNA的新方法。本研究旨在提供一种适合的高质量、高数量直接提取泪液中RNA的方法。在这项研究中,我们开发了一种TRIzol碱基方案,用于直接从人泪液中提取RNA。利用Nanodrop和real-time PCR计算260/280紫外吸收比,测定提取RNA的质量和数量。采用改进的方法提取RNA,得到的纯化RNA(260/280紫外吸收比为1.8 ~ 2)提取率高,总RNA平均为95 μg。本实验建立了一种简便、高效、简便的直接提取泪液中总RNA的方法。
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引用次数: 0
Investigation and confirmation of differentially expressed miRNAs, as well as target gene prediction in papillary thyroid cancer, with a special emphasis on the autophagy signaling pathway. 甲状腺乳头状癌中差异表达mirna及靶基因预测的研究与确认,重点关注自噬信号通路。
IF 1.6 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2022-01-01 DOI: 10.22099/mbrc.2022.43844.1751
Mojtaba Zehtabi, Zahra Akbarpour, Sepehr Valizadeh, Yousef Roosta, Amir Mahdi Khamaneh, Mortaza Raeisi

Papillary thyroid carcinoma (PTC) is the most common endocrine cancer. However, the role of biomechanics in the development and progression of PTC is obscure. The microarray dataset GSE104005 was examined to identify important microRNAs (miRNAs or miRs) and their probable roles in the carcinogenesis of PTC. The gene expression omnibus (GEO) database was used to obtain the data. R was used to access the differentially expressed miRNAs (DEMs) and genes (DEGs). The multiMiR software was used to predict DEM targets. To validate the top DEMs and DEGs, thirty tissue samples were obtained from PTC patients who had their thyroids removed and compared with 30 normal samples. The total RNA content of the tumor and corresponding non-tumoral adjacent samples were purified and converted to cDNA. Expression levels of top dysregulated miRNAs and their target and predicted DEG were evaluated using the RT-qPCR method. miR-182 and miR-183 were top upregulated miRs and miR-30d was the most downregulated miR among DEMs. Furthermore, FOXO1 which was shown to be targeted by aforementioned miRNAs, was the most downregulated genes among other DEGs. 10 hub nodes were detected by PPI construction. PTEN was the hub node with highest score. The in vitro gene expression analysis was also showed the same expression pattern in tissues. Significant increase in miR-182-5p and miR-183-5p expressions, as well as a significant decrease in FOXO1 and miR-30d-5p expressions, suggest that PTC cells may tend to preserve their autophagy capability.

甲状腺乳头状癌(PTC)是最常见的内分泌肿瘤。然而,生物力学在PTC的发展和进展中的作用尚不清楚。研究人员检测了微阵列数据集GSE104005,以鉴定重要的microrna (mirna或miRs)及其在PTC癌变中的可能作用。使用基因表达综合数据库(GEO)获取数据。R用于访问差异表达的mirna (DEMs)和基因(DEGs)。利用multiir软件对DEM目标进行预测。为了验证最高的dem和deg,从甲状腺切除的PTC患者中获得30个组织样本,并与30个正常样本进行比较。将肿瘤和相应的非肿瘤邻近样本的总RNA含量纯化并转化为cDNA。使用RT-qPCR方法评估顶级失调mirna及其靶和预测DEG的表达水平。miR-182和miR-183是dem中上调最多的miR, miR-30d是下调最多的miR。此外,被上述mirna靶向的FOXO1是其他deg中下调最多的基因。通过PPI构建检测到10个枢纽节点。PTEN为枢纽节点,评分最高。体外基因表达分析在组织中也显示出相同的表达模式。miR-182-5p和miR-183-5p表达显著升高,fox01和miR-30d-5p表达显著降低,提示PTC细胞可能倾向于保留其自噬能力。
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引用次数: 0
A phenotypic and molecular investigation of biofilm formation in clinical samples of Pseudomonas aeruginosa. 铜绿假单胞菌临床样品生物膜形成的表型和分子研究。
IF 1.6 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2021-12-01 DOI: 10.22099/mbrc.2021.41708.1673
Leila Dolatshah, Mohammad Tabatabaei

Pseudomonas aeruginosa is identified as a versatile opportunistic microorganism with metabolic diversity contributing to a wide range of health burdens, especially in immunocompromised patients. This bacterium is the cause of 10 to 20% of nosocomial infections. In this study, we evaluated the phenotypic characterizations of biofilm formation in P. aeruginosa clinical isolates using micro-titer plate assay. Indeed, we estimated the prevalence of QS (rhlIrhlRrhlABlasBlasIlasR, aprA) and virulence genes (pslA and cupA) by PCR. The results showed that among 69% of the isolates forming biofilm, 9% were strong biofilm producers, whereas 13% and 47% of isolates produced moderate and low amounts of biofilm, respectively. All isolates possessed cupA and seven QS genes (rhlIrhlR, rhlABlasB,  lasIlasRaprA), while 92% of the isolates possessed the pslA gene. Identification of these genes and their association with biofilm formation can be advantageous in adopting therapeutic methods.

铜绿假单胞菌被认为是一种多用途的机会性微生物,具有代谢多样性,导致广泛的健康负担,特别是在免疫功能低下的患者中。这种细菌是10%至20%医院感染的原因。在这项研究中,我们评估了铜绿假单胞菌临床分离株生物膜形成的表型特征。事实上,我们通过PCR估计了QS (rhlI, rhlR, rhlAB, lasB, lasI, lasR, aprA)和毒力基因(pslA和cupA)的流行率。结果表明,在69%的形成生物膜的分离菌中,9%的分离菌为强生膜菌,13%的分离菌为中等生膜菌,47%的分离菌为低生膜菌。所有分离株均含有cupA和7个QS基因(rhlI、rhlR、rhlAB、lasB、lasI、lasR、aprA), 92%的分离株含有pslA基因。鉴定这些基因及其与生物膜形成的关联有助于采取治疗方法。
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引用次数: 0
Analysis and comparison of physiochemical properties, mutations and glycosylation patterns between RNA polymerase and membrane protein of SARS-CoV and SARS-CoV-2. SARS-CoV和SARS-CoV-2 RNA聚合酶和膜蛋白的理化性质、突变和糖基化模式分析与比较
IF 1.6 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2021-12-01 DOI: 10.22099/mbrc.2021.42187.1692
Mandana Behbahani, Parisa Rabiei, Hassan Mohabatkar

SARS-CoV-2 is a member of β-genus of the coronavirus subfamily, alongside the virus that causes SARS (Severe Acute Respiratory Syndrome). As implied by their names, SARS-CoV-2 and SARS-CoV genome sequences have close kinship (about 79% genomic sequence similarity). In the current research, sequence-based physiochemical properties of RNA polymerase and membrane glycoprotein of SARS-CoV-2 and SARS-CoV were compared. In addition, impacts of substitution mutations on stability and glycosylation patterns of these proteins were studied. In comparison of physiochemical features of membrane and RNA polymerase proteins, only instability index of membrane protein was difference between SARS-CoV and SARS-CoV-2. Mutation analysis showed increase in stability of RNA polymerase and decrease in stability of membrane protein in SARS-CoV-2. Glycosylation pattern analysis showed glycosylation enhancement in both membrane and RNA polymerase proteins of SARS-CoV-2 in comparison to SARS-CoV. In conclusion, more glycosylation and stability of SARS-CoV-2 RNA polymerase could be one of the reasons of high pathogenicity property and host immune system evasion of SARS-CoV-2.

严重急性呼吸系统综合征冠状病毒2型是冠状病毒亚科β属的一员,与导致严重急性呼吸综合征的病毒并列。正如它们的名字所暗示的那样,严重急性呼吸系统综合征冠状病毒2型和严重急性呼吸综合征冠状病毒基因组序列具有密切的亲缘关系(约79%的基因组序列相似性)。在目前的研究中,比较了严重急性呼吸系统综合征冠状病毒2型和严重急性呼吸综合征冠状病毒的RNA聚合酶和膜糖蛋白的基于序列的理化性质。此外,还研究了取代突变对这些蛋白质的稳定性和糖基化模式的影响。在膜蛋白和RNA聚合酶蛋白的理化特征比较中,只有膜蛋白的不稳定性指数在严重急性呼吸系统综合征冠状病毒和严重急性呼吸综合征冠状病毒2型之间存在差异。突变分析显示,严重急性呼吸系统综合征冠状病毒2型中RNA聚合酶的稳定性增加,膜蛋白的稳定性降低。糖基化模式分析显示,与SARS冠状病毒相比,严重急性呼吸系统综合征冠状病毒2型的膜和RNA聚合酶蛋白的糖基化增强。总之,严重急性呼吸系统综合征冠状病毒2型RNA聚合酶的更多糖基化和稳定性可能是严重急性呼吸系综合征冠状病毒的高致病性和宿主免疫系统逃避的原因之一。
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引用次数: 1
Tissue expression of MMP-9, TIMP-1, RECK, and miR338-3p in prostate gland: can it predict cancer? 前列腺组织中MMP-9、TIMP-1、RECK和miR338-3p的表达:能否预测癌症?
IF 1.6 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2021-12-01 DOI: 10.22099/mbrc.2021.40912.1646
Rodolfo Pacheco de Moraes, Ruan Pimenta, Fernando Noboru Cabral Mori, Gabriel Arantes Dos Santos, Nayara Izabel Viana, Vanessa Ribeiro Guimarães, Juliana Alves de Camargo, Katia Ramos Moreira Leite, Miguel Srougi, William Carlos Nahas, Sabrina T Reis

Prostate cancer is the most frequent malignancy affecting men worldwide. Due to the low sensitivity and specificity of the prostate-specific antigen test and the digital rectal exam as screening modalities, several alternatives are being studied. This study aimed to evaluate the application of MMP-9 and its regulators (TIMP-1, RECK, and miR-338-3p) as diagnostic and prognostic indicators of prostate cancer. A total of 134 randomly selected patients under investigation for prostate cancer submitted to a transrectal ultrasound-guided prostate biopsy were enrolled in the study; of these, 61 were positive for the disease (cases), and 73 were negative (control group). The tissue samples were further analyzed by gene and miR-338-3p expression analysis using qRT-PCR (one randomly selected fragment of each patient). Approximately 58% of the patients with prostate cancer presented MMP9 upregulation, while 73%, 65%, and 69% downregulated IMP-1, RECK, and miR-338-3p, respectively. MiR-338-3p was expressed at lower levels in patients with PSA concentrations exceeding 20 ng/mL (p=0.045) and abnormal DRE (p=0.006), while the RECK was more expressed in patients with abnormal DRE (p=0.01). We found that most patients with prostate cancer overexpressed MMP-9; on the other hand, most of them underexpressed TIMP-1, RECK, and miR-338-3p. MiR-338-3p presented as a possible predictor of poor prognosis. Further studies are warranted to evaluate these biomarkers as prognosis factors better.

前列腺癌是世界范围内最常见的男性恶性肿瘤。由于前列腺特异性抗原检测和直肠指检作为筛查方式的敏感性和特异性较低,目前正在研究几种替代方法。本研究旨在评估MMP-9及其调节因子(TIMP-1、RECK和miR-338-3p)作为前列腺癌诊断和预后指标的应用。共有134名随机选择的前列腺癌患者接受了经直肠超声引导的前列腺活检。其中61例(病例)呈阳性,73例(对照组)呈阴性。采用qRT-PCR对组织样本进行基因和miR-338-3p表达分析(每个患者随机选择一个片段)。大约58%的前列腺癌患者出现MMP9上调,而分别有73%、65%和69%的患者出现IMP-1、RECK和miR-338-3p下调。MiR-338-3p在PSA浓度超过20 ng/mL (p=0.045)和DRE异常(p=0.006)的患者中表达水平较低,而RECK在DRE异常的患者中表达水平较高(p=0.01)。我们发现大多数前列腺癌患者MMP-9过表达;另一方面,它们大多低表达TIMP-1、RECK和miR-338-3p。MiR-338-3p可能是不良预后的预测因子。需要进一步的研究来更好地评估这些生物标志物作为预后因素。
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引用次数: 2
Investigation of p16 protein expression and its association with histopathologic parameters in breast cancer. 乳腺癌中p16蛋白表达及其与组织病理参数关系的研究。
IF 1.6 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2021-12-01 DOI: 10.22099/mbrc.2021.41691.1671
Siamak Naji-Haddadi, Daniel Elieh-Ali-Komi, Saeid Aghayan, Rahim Asghari, Javad Rasouli

We investigated the association between p16 expression and histopathologic parameters including size, neural and vascular invasion, and lymph node involvement in breast cancer. 58 specimens from patients with different grades of breast cancer were included. Hematoxylin and eosin and immunohistochemistry staining for p16 was performed. 5 patients (8.6%) had grade I, 23 (39.7%) had grade II, and 30 (51.7%) had grade III breast cancer. Assessment of the tumor size showed that 5 (8.6%) tumors had a size of ≤2cm, 29 (50%) were between 2-5 cm and 24 (41.4%) had a size of ≥5cm. Moreover, 45 (77.6%) of the included patients had axillary lymph node involvement. Investigation of association between p16 positivity with pathological parameters in three groups with positivity to p16 (1-25%, 26-75%, >75%) showed that there was no association between p16 positivity and other parameters including histologic score (p=0.44), tumor size (p=0.77), neural invasion (p=0.79), perivascular invasion (p=0.98) and the number of involved LNs (p=0.49). From the group including eight patients with >75% p16 positivity, seven (87.5%) were found with neural invasion and two (25%) with perivascular invasion. P16 positivity was not associated with size, neural and vascular invasion, and LN involvement in breast cancer.

我们研究了p16表达与组织病理学参数(包括乳腺癌的大小、神经和血管浸润以及淋巴结受累)之间的关系。来自不同级别乳腺癌患者的58例标本被纳入研究。对p16进行苏木精、伊红和免疫组化染色。I级乳腺癌5例(8.6%),II级乳腺癌23例(39.7%),III级乳腺癌30例(51.7%)。肿瘤大小评估:肿瘤大小≤2cm 5例(8.6%),2-5 cm 29例(50%),≥5cm 24例(41.4%)。其中45例(77.6%)患者有腋窝淋巴结受累。p16阳性3组(1-25%、26-75%、>75%)p16阳性与病理参数的相关性研究显示,p16阳性与组织学评分(p=0.44)、肿瘤大小(p=0.77)、神经侵犯(p=0.79)、血管周围侵犯(p=0.98)和累及的淋巴结数(p=0.49)无相关性。在8例p16阳性>75%的患者中,7例(87.5%)发现神经侵犯,2例(25%)发现血管周围侵犯。P16阳性与乳腺癌的大小、神经和血管浸润以及淋巴结累及无关。
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引用次数: 2
Fission yeast Ase1PRC1 is required for the G2-microtubule damage response. 裂变酵母Ase1PRC1是g2微管损伤反应所必需的。
IF 1.6 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2021-12-01 DOI: 10.22099/mbrc.2021.41001.1650
Rose M Doss, Sindi Xhunga, Dorothy Klimczak, Molly Cameron, Jordan Verlare, Tom D Wolkow

Schizosaccharomyces pombe delays entry into mitosis following G2 microtubule damage. This pathway is dependent on Rad26ATRIP, the regulatory subunit of the Rad26ATRIP/Rad3ATR DNA damage response (DDR) complex. However, this G2 microtubule damage response pathway acts independently of the G2 DNA damage checkpoint pathway. To identify other proteins in this G2 microtubule damage pathway, we previously screened a cDNA overexpression library for genes that rescued the sensitivity of rad26Δ cells to the microtubule poison thiabendazole. A partial cDNA fragment encoding only the C-terminal regulatory region of the microtubule bundling protein Ase1 PRC1 was isolated. This fragment lacks the Ase1PRC1 dimerization and microtubule binding domains and retains the conserved C-terminal unstructured regulatory region. Here, we report that ase1Δ cells fail to delay entry into mitosis following G2 microtubule damage. Microscopy revealed that Rad26ATRIP foci localized alongside Ase1PRC1 filaments, although we suggest that this is related to microtubule-dependent double strand break mobility that facilitates homologous recombination events. Indeed, we report that the DNA repair protein Rad52 co-localizes with Rad26ATRIP at these foci, and that localization of Rad26ATRIP to these foci depends on a Rad26ATRIP N-terminal region containing a checkpoint recruitment domain. To our knowledge, this is the first report implicating Ase1PRC1 in regulation of the G2/M transition.

分裂糖菌在G2微管损伤后延迟进入有丝分裂。该途径依赖于Rad26ATRIP, Rad26ATRIP/Rad3ATR DNA损伤反应(DDR)复合体的调控亚基。然而,这种G2微管损伤反应途径独立于G2 DNA损伤检查点途径。为了鉴定G2微管损伤通路中的其他蛋白,我们先前筛选了一个cDNA过表达文库,用于挽救rad26Δ细胞对微管毒性硫苯达唑的敏感性。分离到一个仅编码微管捆绑蛋白Ase1 PRC1 c端调控区的部分cDNA片段。该片段缺乏Ase1PRC1二聚化和微管结合结构域,保留了保守的c端非结构化调控区。在这里,我们报道ase1Δ细胞在G2微管损伤后不能延迟进入有丝分裂。显微镜显示,Rad26ATRIP聚焦在Ase1PRC1丝旁,尽管我们认为这与微管依赖的双链断裂迁移有关,从而促进了同源重组事件。事实上,我们报道了DNA修复蛋白Rad52与Rad26ATRIP在这些病灶上共定位,并且Rad26ATRIP在这些病灶上的定位取决于包含检查点招募域的Rad26ATRIP n端区域。据我们所知,这是第一个涉及Ase1PRC1调控G2/M转变的报告。
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引用次数: 0
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Molecular Biology Research Communications
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