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Characterization of Multiple Omics Signatures in Relation to Dietary Pattern for in Silico Personalised Colon Cancer Risk Stratification: Study Protocol for a Case-control Study and the Challenges Faced During the COVID-19 Pandemic 与饮食模式相关的多组学特征表征与计算机个体化结肠癌风险分层:病例对照研究的研究方案以及COVID-19大流行期间面临的挑战
Pub Date : 2022-06-07 DOI: 10.31557/apjcb.2022.7.2.133-141
Nur Mahirah Amani Mohammad, M. Shahril, S. Shahar, N. Rajab, R. R. Raja Ali, Z. M. Mohd Azman, S. Baharum, Abrar Noor Akramin Kamarudin, F. Chung, R. Sharif
Background: Personalised nutrition and medicine are the future of healthcare. In relation to cancer, public and healthcare professionals often seek dietary recommendations for cancer prevention. Among the important cancers that can be prevented by diet and lifestyle is colorectal cancer (CRC). CRC is one of the commonest cancers globally, and is a major health concern in Malaysia as it presents with high mortality and morbidity rates, causing a significant socioeconomic burden to the country. While extensive research has been conducted on the treatment and mechanisms of cancer, there have been no reports on the associations between metabolites, novel biomarkers of cancer, and dietary patterns in the context of cancer prevention in the Malaysian multiethnic population. Methods: A case control study will be conducted in Malaysia, involving patients diagnosed with CRC, colorectal adenoma and a group of healthy participants. Multiple endpoints will be analyzed, namely metabolomic signatures, epigenetic marks, inflammatory markers and relationship with dietary patterns will be established. Multiple machine learning models will then be used to develop personalised risk stratification algorithms. Recruitment began in July 2019 and is ongoing due to COVID-19 pandemic. Discussion: This study will be the first to identify alterations in metabolites, inflammatory markers and epigenetic marks associated with dietary patterns and CRC risk in Malaysia. Understanding on how dietary patterns influence CRC risk in the multi-ethnic Malaysian population and identification of novel oncometabolites for CRC risk, will allow for development of personalised evidence-based recommendations in reducing individual risks of CRC.
背景:个性化营养和药物是医疗保健的未来。关于癌症,公众和保健专业人员经常寻求预防癌症的饮食建议。结直肠癌是可以通过饮食和生活方式预防的重要癌症之一。结直肠癌是全球最常见的癌症之一,是马来西亚的一个主要健康问题,因为它具有高死亡率和发病率,给该国造成了重大的社会经济负担。虽然对癌症的治疗和机制进行了广泛的研究,但在马来西亚多民族人群中,没有关于代谢物、新型癌症生物标志物和饮食模式在预防癌症方面的联系的报道。方法:将在马来西亚进行病例对照研究,包括诊断为结直肠癌、结直肠腺瘤的患者和一组健康参与者。将分析多个终点,即代谢组学特征、表观遗传标记、炎症标记以及与饮食模式的关系。然后,将使用多个机器学习模型来开发个性化的风险分层算法。招聘于2019年7月开始,由于COVID-19大流行,目前仍在进行中。讨论:这项研究将首次确定马来西亚与饮食模式和结直肠癌风险相关的代谢物、炎症标志物和表观遗传标记的改变。了解饮食模式如何影响马来西亚多民族人群的结直肠癌风险,以及识别结直肠癌风险的新型肿瘤代谢物,将有助于制定个性化的循证建议,以降低结直肠癌的个体风险。
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引用次数: 0
Assessing Mutations in Treatment Response-related Genes in Egyptian Patients with Non-small Cell Lung Cancer 评估埃及非小细胞肺癌患者治疗反应相关基因的突变
Pub Date : 2022-05-28 DOI: 10.31557/apjcb.2022.7.2.125-132
Anan Omar, A. Bahnassy, Rabab Gaafer, Eman D. El Desouky, A. Medhat
Background: Epidermal growth factor receptor (EGFR) and Kirsten rat sarcoma viral oncogene homolog (K-RAS) are the most common driver genes in patients with non-small cell lung cancer adenocarcinomas (NSCLC/ADC), which affects treatment. Therefore, this study determines the frequency and patterns of EGFR and K-RAS mutations in Egyptian patients with NSCLC/ADC and correlates them with clinicopathological features. Methods: A retrospective analysis of 139 patients diagnosed with NSCLC/ADC and screened for EGFR and K-RAS mutations was conducted; further evaluating clinicopathological characteristics and mutational status. Results: This study included 101 males and 38 females with a median age of 57.7 ± 10.5 years. EGFR mutations were detected in 22.3% (12.2% in exon 19, 8.6% in exon 21, and 1.4% in exon 18) and K-RAS mutations in 17.3% (15.8% in codon 12 and 1.4% in codon 13), whereas combined mutations were detected in nine patients (6.5%). Furthermore, EGFR mutations were non-significantly more common in females and nonsmokers, contradicting K-RAS mutations, which were more common in males and smokers. Conclusion: EGFR and K-RAS mutations are common in Egyptian patients with NSCLC/ADC (National Cancer Institute experience). Their incidences were between the Asian Pacific and Europeans. Also, their mutations led to dysregulation in tyrosine kinase activity, which correlates with the late disease stage and poor progression. Therefore, analyzing them should be done to determine a better treatment method and predict survival outcomes.
背景:表皮生长因子受体(EGFR)和Kirsten大鼠肉瘤病毒癌基因同源物(K-RAS)是非小细胞肺癌腺癌(NSCLC/ADC)患者中最常见的驱动基因,影响治疗。因此,本研究确定了埃及NSCLC/ADC患者中EGFR和K-RAS突变的频率和模式,并将其与临床病理特征联系起来。方法:回顾性分析139例诊断为NSCLC/ADC并进行EGFR和K-RAS突变筛查的患者;进一步评估临床病理特征和突变状态。结果:男性101例,女性38例,中位年龄57.7±10.5岁。EGFR突变占22.3%(第19号外显子12.2%,第21号外显子8.6%,第18号外显子1.4%),K-RAS突变占17.3%(第12号外显子15.8%,第13号外显子1.4%),9例患者(6.5%)检测到联合突变。此外,EGFR突变在女性和非吸烟者中更为常见,这与K-RAS突变在男性和吸烟者中更为常见相矛盾。结论:EGFR和K-RAS突变在埃及NSCLC/ADC患者中很常见(国家癌症研究所经验)。它们的发病率在亚太地区和欧洲之间。此外,它们的突变导致酪氨酸激酶活性失调,这与疾病晚期和不良进展有关。因此,需要对其进行分析,以确定更好的治疗方法并预测生存结果。
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引用次数: 5
Correlation between CA-15-3 and Bone Scan findings in patients with Carcinoma Breast CA-15-3与乳腺癌患者骨扫描结果的相关性
Pub Date : 2022-05-18 DOI: 10.31557/apjcb.2022.7.2.121-123
Julekha Khatun, Tarim Mahmood
Objectives: Breast cancer is the most common malignant tumor of females; the incidence increases with age. Bone is the most common site to which breast cancer metastasizes. Between 30% to 85% of patients with metastatic breast cancer develop bone metastases during the course of the disease. Carbohydrate antigen (CA) 15-3 is a circulating human breast cancer associated antigen used as a tumor marker in the screening of breast cancer patients for metastasis. The objective of this study was to compare the levels of CA 15-3 and bone scan findings in patients with breast cancer. Material and Methods: This cross-sectional analytical study was carried out at Rajshahi medical college hospital, Rajshahi, from January 2018 to December 2019. A total of 90 diagnosed breast cancer patients were enrolled in this study. Among them 45 patient was with normal CA 15-3 level and 45 patient was with elevated CA 15-3 level. All of them underwent bone scan. The tumor maker CA 15-3 was compared with bone scan findings. Results: Mean age of the patients was 46.62 ± 8.67 years (range 33 to 67 years). Among 45 patients with normal CA 15-3 level, bone scan was negative for metastasis in 39 (86.66%) patients with CA 15-3 level 14.96 ± 9.72U/ml and positive for metastasis in 6 (13.33%) patient with CA 15-3 level 23.3 ± 2.96U/ml. Out of 45 patients with elevated CA 15-3 level 11 (24.44%) had negative bone scan with CA 15-3 level 92.5 ± 19.89 U/ml whereas 34 (75.55%) patient had positive bone scan findings with CA 15-3 level 413.83 ± 362.83U/ml. In current study, Pearson’s correlation coefficient test showed positive relation, for elevated CA 15-3 level and Bone scan findings there was (r = 0.853, p = 0.00001) and for normal CA15-3 level and bone scan finding (r = 0.449, p = 0. 0019). Conclusion: The result of this study showed positive relationship between the bone scan findings and CA 15-3 level of breast carcinoma patients.
目的:乳腺癌是女性最常见的恶性肿瘤;发病率随着年龄的增长而增加。骨是乳腺癌最常见的转移部位。30%至85%的转移性乳腺癌患者在病程中发生骨转移。碳水化合物抗原(CA) 15-3是一种循环的人类乳腺癌相关抗原,被用作乳腺癌患者转移筛查的肿瘤标志物。本研究的目的是比较乳腺癌患者的CA 15-3水平和骨扫描结果。材料与方法:本横断面分析研究于2018年1月至2019年12月在Rajshahi医学院医院进行。共有90名确诊的乳腺癌患者参加了这项研究。其中CA 15-3水平正常45例,CA 15-3水平升高45例。所有患者均行骨扫描。肿瘤制造者CA 15-3与骨扫描结果进行比较。结果:患者平均年龄46.62±8.67岁(33 ~ 67岁)。在45例CA 15-3水平正常的患者中,CA 15-3水平为14.96±9.72U/ml的患者中有39例(86.66%)骨扫描为转移阴性,CA 15-3水平为23.3±2.96U/ml的患者中有6例(13.33%)骨扫描为转移阳性。在45例CA 15-3水平升高的患者中,11例(24.44%)骨扫描结果为阴性,CA 15-3水平为92.5±19.89 U/ml, 34例(75.55%)骨扫描结果为阳性,CA 15-3水平为413.83±362.83U/ml。在本研究中,Pearson相关系数检验显示,CA15-3水平升高与骨扫描结果呈正相关(r = 0.853, p = 0.00001), CA15-3水平正常与骨扫描结果呈正相关(r = 0.449, p = 0)。0019)。结论:乳腺癌患者骨扫描结果与CA 15-3水平呈正相关。
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引用次数: 0
Detection of Human Papillomavirus Subtype 16 in Esophageal Squamous Cells Carcinoma in Sudanese Patients 苏丹食管鳞状细胞癌患者人乳头瘤病毒16亚型的检测
Pub Date : 2022-05-12 DOI: 10.31557/apjcb.2022.7.2.111-114
Abdelsalam Y Azza, Abdelwadoud Mohamed Elfatih, Musa E.A.Arwa, Fadla Almula. A Huda
Oesophageal cancer is the sixth most common cancer among males and the ninth among the females worldwide. The purpose of this study is to detect association of Human papilloma virus subtype 16 and esophageal squamous cell carcinoma in Khartoum state Hospitals by polymerase chain reaction method. A retrospective descriptive study of archival formalin fixed paraffin embedded tissue from Esophageal Squamous cells carcinoma specimens acquired at Omdurman Teaching hospital, Alribat, IbnSina Hospital and Military hospital. 50 were used to detect HPV-16 by DNA Extraction and polymerase chain reaction method (PCR). PCR was performed on formalin-fixed, paraffin-embedded tissue samples from 50 patients with ESCCS. PCR detection method was used to detect the role of HPV-16. SPSS was used to analyze the data, the role of HPV-16 and the histological grade of tumors was determined. In 18 % of cases, the presence of HPV-16 was positive in the ages above 40 years old (54.2%). Females predominantly affected by squamous cellscarcinoma (22.6%). The most common histological differentiation observed with high rate of human papilloma virus type 16 was found in poorly differentiated squamous cells carcinoma (20%). The frequency of human papilloma virus type -16 was statistically insignificant associated by gender, age and histological differentiation. (P value < 0.05).
食管癌是全球男性中第六大最常见的癌症,在女性中排名第九。采用聚合酶链反应法检测喀土穆国立医院16型人乳头瘤病毒与食管鳞状细胞癌的相关性。对恩图曼教学医院、Alribat、IbnSina医院和军队医院获得的食管鳞状细胞癌标本中福尔马林固定石蜡包埋组织的回顾性描述性研究。50例采用DNA提取和聚合酶链反应(PCR)法检测HPV-16。对50例ESCCS患者经福尔马林固定、石蜡包埋的组织标本进行PCR检测。采用PCR检测方法检测HPV-16的作用。采用SPSS软件对数据进行分析,确定HPV-16的作用及肿瘤的组织学分级。在18%的病例中,HPV-16在40岁以上的人群中呈阳性(54.2%)。女性主要为鳞状细胞癌(22.6%)。16型人乳头瘤病毒最常见的组织学分化是低分化鳞状细胞癌(20%)。人乳头瘤病毒-16型的发生频率与性别、年龄和组织学分化的关系无统计学意义。(P值< 0.05)。
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引用次数: 0
Influence of Autoantibodies to Estradiol and Progesterone on the Blood Serum Hormones Concentrations in Postmenopausal Healthy Women and Breast Cancer Patients 雌激素、黄体酮自身抗体对绝经后健康妇女及乳腺癌患者血清激素浓度的影响
Pub Date : 2022-05-12 DOI: 10.31557/apjcb.2022.7.2.115-120
A. Glushkov, Elena G. Polenok, Lyudmila A. Gordeeva, Stella A. Mun, M. Kostyanko, Alexandr V. Antonov, Natalia E. Verzbitskaya, Ilgiz A. Vafin
Background: It is known that antibodies to steroid hormones are associated with some human diseases (systemic lupus erythematosus, thrombosis, recurrent pregnancy loss, autoimmune dermatitis et al.). There were no any data about action of specific autoantibodies on the sex hormones in hormone-dependent cancer patients. Objectives: The purpose of this study was to investigate the probable links between estradiol (Es) and progesterone (Pg) levels and autoantibodies of A-class specific to these hormones (IgA-Es and IgA-Pg) in the blood serum of healthy women and breast cancer patients. Patients and Methods: There were examined 521 nearly diagnosed breast carcinoma patients from Regional Clinical Oncology Dispensary (Kemerovo, Russian Federation) and 143 healthy women from Kemerovo (Russian Federation). The serum concentration of Es and Pg were analyzed by competitive immunoassay using specific monoclonal antibodies. The serum IgA-Pg and IgA-Es were analyzed by solid-phase non-competitive immunoassay using Pg and Es conjugated with bovine serum albumin as adsorbed antigens. The data analysis was performed using software STATISTICA 8.0 (Stat Soft Inc., USA).Results: We discovered that low ratios Pg/Es<4.3 were associated with breast cancer. Personal IgA-Pg/IgA-Es ratios negatively correlated with Es levels and positively correlated with Pg levels and Pg/Es ratios in compared groups. The influence of IgA-Pg/IgA-Es ratio on the hormones levels and their ratio in heathy women was more strong than in breast cancer patients. Conclusions: Our clinical results correspond to the known experimental data about influence of specific antibodies on the levels of steroid hormones in immunized animals. Human autoantibodies to Es and Pg could stimulate or inhibit promotion of carcinogenesis by influence on Pg/Es ratio depending on individual IgA-Pg/IgA-Es ratio.
背景:已知类固醇激素抗体与一些人类疾病(系统性红斑狼疮、血栓形成、复发性妊娠丢失、自身免疫性皮炎等)有关。在激素依赖的癌症患者中,特异性自身抗体对性激素的作用尚未见报道。目的:本研究的目的是探讨健康妇女和乳腺癌患者血清中针对这些激素(IgA-Es和IgA-Pg)的a类自身抗体与雌二醇(Es)和孕酮(Pg)水平之间的可能联系。患者和方法:对俄罗斯联邦克麦罗沃地区临床肿瘤诊所的521例近诊断乳腺癌患者和143例健康妇女进行了检查。采用特异性单克隆抗体竞争免疫分析法分析血清Es和Pg浓度。以Pg和Es与牛血清白蛋白结合作为吸附抗原,采用固相非竞争免疫分析法对血清IgA-Pg和IgA-Es进行分析。数据分析采用STATISTICA 8.0软件(Stat Soft Inc., USA)。结果:我们发现Pg/Es<4.3与乳腺癌相关。各组个体IgA-Pg/IgA-Es比值与Es水平呈负相关,与Pg水平和Pg/Es比值呈正相关。正常女性IgA-Pg/IgA-Es比值对激素水平及比值的影响强于乳腺癌患者。结论:我们的临床结果与已知的实验数据一致,即特异性抗体对免疫动物体内类固醇激素水平的影响。人Es和Pg自身抗体对Pg/Es比值的影响取决于个体IgA-Pg/IgA-Es比值,从而刺激或抑制促癌作用。
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引用次数: 0
Gene Regulation by p53 in Human Cancer System p53基因在人类肿瘤系统中的调控作用
Pub Date : 2022-04-17 DOI: 10.31557/apjcb.2022.7.1.97-109
Subhrendu Ghosh, Meghna Bhattacharjee, N. Jana
TP53 proto-oncogene constitutes tumor induction in more than 50% of human cancers as it is mutated frequently in a wide range of cell lines. The transcription of TP53 is postulated to be autoregulated via either binding with TBP and CBF or via direct interaction of p53 protein with TP53 promoter, though further investigation is needed to acknowledge it. Alteration in pathways, regulated through wild type, by mutant p53 (Mutp53) give rise to immortality through interaction with other transcription factors or inducing receptor tyrosine kinases and other signal components. The missense mutation is more frequent constituting more than 60% among all mainly because of the high rate of G>A or C>T transitions in TP53, giving rise to mutation hotspots in R248, R273, etc. In addition to the loss of function, mutations in the TP53 gene also confers oncogenic functions that are not found in wild type p53, referred to as Gain of Function (GOF). GOF mutp53 has been found to promote metastasis, cell proliferation, cell stemness, metabolic reprogramming as well as chemoresistance. Mutp53 also inhibits the wild type effect that is referred to as the Dominant negative effect (DNE). Understanding the mechanisms behind GOF activities, how they promote chemoresistance, and targeting mutp53 will help in improving the treatment of many human cancers with TP53 mutations.
TP53原癌基因在超过50%的人类癌症中构成肿瘤诱导,因为它在广泛的细胞系中经常发生突变。TP53的转录被认为是通过与TBP和CBF结合或通过p53蛋白与TP53启动子的直接相互作用而自动调节的,尽管需要进一步的研究来确认这一点。突变型p53 (Mutp53)通过野生型调控通路的改变,通过与其他转录因子或诱导受体酪氨酸激酶和其他信号成分的相互作用而产生永生。其中错义突变更为频繁,占60%以上,这主要是由于TP53中G>A或C>T的转导率较高,在R248、R273等处形成突变热点。除了功能丧失外,TP53基因的突变还赋予野生型p53所没有的致癌功能,称为功能获得(GOF)。已发现GOF mutp53可促进转移、细胞增殖、细胞干性、代谢重编程和化疗耐药。Mutp53也抑制野生型效应,即显性负效应(DNE)。了解GOF活性背后的机制,它们如何促进化疗耐药,以及靶向mutp53将有助于改善许多TP53突变的人类癌症的治疗。
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引用次数: 8
Moringa oleifera Lamarck (1785), Moringaceae and Cancer I: A Systematic and Comprehensive Review of 24 Years of Research 辣木(1785),辣木科与癌症I: 24年研究的系统综合综述
Pub Date : 2022-03-13 DOI: 10.31557/apjcb.2022.7.1.75-96
Isaac Karimi
This review was aimed to assess the anti-cancer properties of Moringa oleifera Lamarck. (Moringaceae: MO) reported from 1998 till 10 November 2021. A total 71 PubMed relevant papers were discussed here. Among all parts of MO which used to assess antitumor activities, the leaves (52%), seeds (22%), pods (7%), and phytocompounds (7%; like moringin and its congeners) would be considered as a source of putative phyto-onco-lytics or phyto-onco-statics. The partitioning of secondary metabolites with pharmacological value in source (leaf) and sink (roots, flowers, pods, callus, and fruits) organs of MO dictates the best choice of the solvents for their extraction. The polar: water (29%) > ethanol (17%) > methanol (13%) > hydro-alcohol (11%); intermediate polar: dichloromethane (4%); and nonpolar: n-hexane = ethyl acetate (7%) > chloroform (3% of studies) solvents have been employed for extractions among studies. The human colorectal cancer, leukemia, non-small cell adenocarcinoma, and breast cancer consisted 22, 14,10, and 8% of screened studies, respectively and the rest of tumors consisted less than 5% of studies. The in vitro (51%), in vivo chemically induced model (21%), and tumor graft models (8%) were reported and there were no clinical trials among studies. Totally, from 118 cell lines used, healthy cell lines (control; n = 19), MCF-7 (n = 12), HepG2 (n = 12), and Hela (n = 6) consisted top list amongst studies. From 76 anti-cancer portals curated amongst studies, induction of apoptosis (n = 29), anti-proliferation (n = 17), anti-angiogenesis (n = 8), and DNA/RNA fragmentation (n = 6) were the main antitumor portals and the cytotoxicity and anti-inflammation may be considered as minor ones. To sum up, the rational extraction and purification of MO, phytochemistry, and computational and experimental pharmacology of various extracts of MO should be pursued to decipher phyto-onco-lytic and/or phyto-onco-static drug-like phytocompounds suitable to be employed in clinical trials. 
本文旨在探讨辣木的抗癌作用。(辣木科:MO)于1998年至2021年11月10日报告。本文共讨论了71篇PubMed相关论文。在所有被用来评价其抗肿瘤活性的部位中,叶(52%),种子(22%),豆荚(7%),植物化合物(7%);就像辣木素和它的同系物一样,被认为是一种假定的植物共溶物或植物共抑物的来源。具有药理价值的次生代谢物在植物源(叶)和汇(根、花、豆荚、愈伤组织和果实)器官中的分配决定了其提取溶剂的最佳选择。极性:水(29%)>乙醇(17%)>甲醇(13%)>水醇(11%);中间极性:二氯甲烷(4%);非极性溶剂:正己烷=乙酸乙酯(7%)>氯仿(3%)。人类结直肠癌、白血病、非小细胞腺癌和乳腺癌分别占筛选研究的22%、14%、10%和8%,其余肿瘤占研究的5%以下。报道了体外(51%)、体内化学诱导模型(21%)和肿瘤移植模型(8%),研究中没有临床试验。总共使用了118个细胞系,健康细胞系(对照;n = 19)、MCF-7 (n = 12)、HepG2 (n = 12)和Hela (n = 6)在研究中名列前茅。其中,诱导凋亡(n = 29)、抗增殖(n = 17)、抗血管生成(n = 8)和DNA/RNA断裂(n = 6)是主要的抗肿瘤通道,细胞毒性和抗炎症可被认为是次要的。综上所述,为了解密适合于临床试验的植物溶瘤性和/或植物抑瘤性药物样植物化合物,需要对MO的合理提取纯化、植物化学以及各种提取物的计算药理学和实验药理学进行研究。
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引用次数: 0
Frequency of Expression of BRAF V600E and Epidermal Growth Factor Receptor (EGFR) in Ameloblastoma BRAF V600E和表皮生长因子受体(EGFR)在成釉细胞瘤中的表达频率
Pub Date : 2022-03-13 DOI: 10.31557/apjcb.2022.7.1.29-35
Namrah Bashir, M. Asif, I. Malik, Nighat Araa, Farhat Rashid, H. Uddin, A. Bashir, Numrah Shakeel Malik
Objective: To determine the Immunohistochemical expression of BRAF V600E and Epidermal growth factor receptor (EGFR) in ameloblastoma and correlate the expression with age and gender of patients, and patterns and types of ameloblastoma. Material & Methods: 39 cases were retrieved with their formalin-fixed, paraffin embedded blocks, trimmed and cut into 5 microns sections. They were mounted on slides after staining with routine hematoxylin and eosin followed by Immunohistochemical staining of BRAF V600E and EGFR. Mean and standard deviation were calculated for quantitative variables. Frequency and percentages were calculated for qualitative variables. Chi-square test was employed to assess the significance of difference. The p-value ≤ 0.05 was considered significant. Results: There were 19 (41.2%) males and 20 (48.7%) female patients. The mean age of patients at which they presented was 39.97 ± 15.505 (mean ± SD) with an age range between 12 to 65 years. 25 (64.1 %) cases showed positive expression of BRAF V600E and 14 (35.8 %) cases showed negative expression of BRAF V600E. 27 (69.2 %) cases showed positive expression of EGFR whereas 6 (15.3 %) cases showed negative expression of EGFR. The p-value was ≤ 0.05 for expression of BRAF V600E with respect to patterns of ameloblastoma and tumor site and expression of EGFR with respect to sub-types of ameloblastoma.Conclusion: There is positive expression of BRAF V600E (64.1%) and EGFR (74.4%) in different sub-types and patterns of ameloblastoma. Correct assessment with the help of these markers can lead to early diagnosis and use of adjuvant treatment protocols
目的:检测BRAF V600E和表皮生长因子受体(EGFR)在成釉细胞瘤中的免疫组化表达,并与患者的年龄、性别、成釉细胞瘤的类型和类型相关。材料与方法:取39例标本,取经福尔马林固定、石蜡包埋的标本块,修整后切成5微米切片。常规苏木精和伊红染色后,再进行BRAF V600E和EGFR免疫组化染色,将其载于载玻片上。计算定量变量的均值和标准差。对定性变量计算频率和百分比。采用卡方检验评估差异的显著性。p值≤0.05为显著性。结果:男性19例(41.2%),女性20例(48.7%)。患者就诊的平均年龄为39.97±15.505 (mean±SD),年龄范围为12 ~ 65岁。BRAF V600E阳性表达25例(64.1%),阴性表达14例(35.8%)。EGFR阳性27例(69.2%),阴性6例(15.3%)。BRAF V600E表达与成釉细胞瘤类型、肿瘤部位、EGFR表达与成釉细胞瘤亚型的p值均≤0.05。结论:BRAF V600E阳性表达(64.1%),EGFR阳性表达(74.4%)在不同亚型和类型的成釉细胞瘤中均有表达。在这些标记物的帮助下进行正确的评估可以导致早期诊断和使用辅助治疗方案
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引用次数: 1
Significance of CD133 Expression in Invasive Ductal Carcinoma of the Breast CD133在乳腺浸润性导管癌中的表达及意义
Pub Date : 2022-02-23 DOI: 10.31557/apjcb.2022.7.1.9-14
N. Ahmed, M. Mohammed
Background and Aim: Cancer stem cells (CSCs) are thought to be responsible for tumor initiation, progression, and resistance to chemotherapy and radiotherapy. CD133 is a trans-membrane glycoprotein which is considered as a putative CSCs marker. Emerging evidence suggests that CD133 may be a critical factor in tumor development, progression and metastasis. The aim of this study was to evaluate the expression of CD133 in mammary infiltrating ductal carcinoma (IDC), and to correlate its expression with some known clinicopathological parameters. Methods: Fifty patients with mammary IDC who underwent modified radical mastectomy were included in this study. From each specimen, two tissue sections were obtained; one was stained by hematoxylin and eosin (H&E) stain to determine the histologic subtype, grade and indicators of local aggressiveness. The second tissue section was immunohistochemically stained by anti-human CD133 antibody. Results: The study revealed statistically significant associations between CD133 expression and poorly differentiated, advanced stage tumors with poor Nottingham Prognostic Index (NPI), triple negative phenotype, lymphovascular invasion (LVI) and lymph node metastasis (LNM). Conclusion: The current study revealed that CD133 is strongly associated with poor prognostic indices; it is positively correlated to poorly-differentiated tumors with high histologic grade and advanced stage  
背景和目的:肿瘤干细胞(CSCs)被认为与肿瘤的发生、发展和对化疗和放疗的耐药性有关。CD133是一种跨膜糖蛋白,被认为是一种假定的CSCs标志物。新出现的证据表明,CD133可能是肿瘤发生、进展和转移的关键因素。本研究的目的是评估CD133在乳腺浸润性导管癌(IDC)中的表达,并将其表达与一些已知的临床病理参数联系起来。方法:对50例行改良乳房根治术的乳腺IDC患者进行研究。从每个标本中获得两个组织切片;一组采用苏木精-伊红(H&E)染色,测定组织学亚型、分级及局部侵袭性指标;第二组组织切片采用抗人CD133抗体免疫组化染色。结果:研究显示CD133表达与低分化、晚期肿瘤(诺丁汉预后指数(NPI)差、三阴性表型、淋巴血管侵袭(LVI)和淋巴结转移(LNM)之间存在统计学意义的相关性。结论:目前的研究表明,CD133与不良预后指标密切相关;与组织学分级高、分期晚期的低分化肿瘤呈正相关
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引用次数: 0
Study the Role of Cell Free DNA in the Diagnosis of Hepatocellular Carcinoma, an Egyptian Study 研究游离细胞DNA在肝细胞癌诊断中的作用,一项埃及研究
Pub Date : 2022-02-23 DOI: 10.31557/apjcb.2022.7.1.3-8
N. H. Radwan, Hadeer Ali Abdelkhalik, D. Elgayar, M. Elsharkawy
 Background and objective: Hepatocellular carcinoma (HCC) is a primary malignancy of the liver. Since the conventional tissue biopsy and AFP have limited value, a new promising diagnostic method” liquid biopsy” has emerged. Cell free DNA is one of the liquid biopsy corner stones along with circulating tumor cells. Aim of the work: The study aims to evaluate the role of cf-DNA in the prediction of HCC. Subjects and methods: Eighty newly diagnosed HCC cases and seventy seven apparently healthy individuals were recruited from the National Cancer Institute, Cairo University. Cf-DNA level is measured by Qubit fluorometer assay and AFP was measured by ELISA for control. Comparisons between quantitative variables were done using the non-parametric Kruskal-Wallisand Mann-Whitney. Correlation between quantitative variables were done using Spearman correlation coefficient and a ROC curve was constructed with area under curve analysis performed to detect best cut off value of cf-DNA and AFP for detection of HCC. Results: The median cf-DNA and AFP levels were statistically significant higher in HCC patients (0,11ng/µl and 160.9 ng/ml respectively) than in control group (0.04 ng/ µl and 1.30 ng/ml respectively). Upon plotting ROC curve, cf-DNA and AFP gave a sensitivity of 78% and 93.7% respectively, a specificity of 59.7% and 92.2% respectively. The diagnostic value of cf-DNA in combination with AFP level has slightly improved the specificity (96.1%) on the expense of the sensitivity which was decreased (69.5%). Conclusion: Cf-DNA plays a role in the prediction of HCC but still AFP has the upper hand in the diagnosis of HCC in Egyptian population. Liquid biopsy still hasits own limitations. The techniques of colleting’ liquid”, and detection of cf-DNA must be standardized.
背景与目的:肝细胞癌(HCC)是肝脏的原发性恶性肿瘤。由于常规组织活检和AFP的价值有限,一种新的诊断方法“液体活检”应运而生。游离细胞DNA与循环肿瘤细胞一起是液体活检的基石之一。工作目的:本研究旨在评估cf-DNA在HCC预测中的作用。对象和方法:从开罗大学国家癌症研究所招募80例新诊断的HCC病例和77例明显健康的个体。用量子比特荧光法测定Cf-DNA水平,用ELISA法测定AFP水平作为对照。定量变量之间的比较使用非参数Kruskal-Wallisand Mann-Whitney进行。定量变量间采用Spearman相关系数进行相关性分析,通过曲线下面积分析构建ROC曲线,检测cf-DNA与AFP检测HCC的最佳截断值。结果:HCC患者中位cf-DNA和AFP水平(分别为0、11ng/µl和160.9 ng/ml)高于对照组(分别为0.04 ng/µl和1.30 ng/ml),差异有统计学意义。绘制ROC曲线时,cf-DNA和AFP的敏感性分别为78%和93.7%,特异性分别为59.7%和92.2%。cf-DNA联合AFP水平的诊断价值在敏感性降低(69.5%)的基础上,略微提高了特异性(96.1%)。结论:在埃及人群中,Cf-DNA在HCC的预测中发挥作用,但AFP在HCC的诊断中仍占上风。液体活检仍有其局限性。收集“液体”和检测cf-DNA的技术必须标准化。
{"title":"Study the Role of Cell Free DNA in the Diagnosis of Hepatocellular Carcinoma, an Egyptian Study","authors":"N. H. Radwan, Hadeer Ali Abdelkhalik, D. Elgayar, M. Elsharkawy","doi":"10.31557/apjcb.2022.7.1.3-8","DOIUrl":"https://doi.org/10.31557/apjcb.2022.7.1.3-8","url":null,"abstract":" Background and objective: Hepatocellular carcinoma (HCC) is a primary malignancy of the liver. Since the conventional tissue biopsy and AFP have limited value, a new promising diagnostic method” liquid biopsy” has emerged. Cell free DNA is one of the liquid biopsy corner stones along with circulating tumor cells. Aim of the work: The study aims to evaluate the role of cf-DNA in the prediction of HCC. Subjects and methods: Eighty newly diagnosed HCC cases and seventy seven apparently healthy individuals were recruited from the National Cancer Institute, Cairo University. Cf-DNA level is measured by Qubit fluorometer assay and AFP was measured by ELISA for control. Comparisons between quantitative variables were done using the non-parametric Kruskal-Wallisand Mann-Whitney. Correlation between quantitative variables were done using Spearman correlation coefficient and a ROC curve was constructed with area under curve analysis performed to detect best cut off value of cf-DNA and AFP for detection of HCC. Results: The median cf-DNA and AFP levels were statistically significant higher in HCC patients (0,11ng/µl and 160.9 ng/ml respectively) than in control group (0.04 ng/ µl and 1.30 ng/ml respectively). Upon plotting ROC curve, cf-DNA and AFP gave a sensitivity of 78% and 93.7% respectively, a specificity of 59.7% and 92.2% respectively. The diagnostic value of cf-DNA in combination with AFP level has slightly improved the specificity (96.1%) on the expense of the sensitivity which was decreased (69.5%). Conclusion: Cf-DNA plays a role in the prediction of HCC but still AFP has the upper hand in the diagnosis of HCC in Egyptian population. Liquid biopsy still hasits own limitations. The techniques of colleting’ liquid”, and detection of cf-DNA must be standardized.","PeriodicalId":8848,"journal":{"name":"Asian Pacific Journal of Cancer Biology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88186120","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}
引用次数: 4
期刊
Asian Pacific Journal of Cancer Biology
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