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Human papillomavirus, tobacco, and poor oral hygiene can act synergetically, modulate the expression of the nuclear factor kappa B signaling pathway for the development and progression of head and neck cancer in the Pakistani population 被引量:1
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作者 Sumaira Sarwar Mushir Mulla +4 位作者 Munaz Mulla Rida Tanveer Maimoona Sabir Aneesa Sultan Salman A.Maliki 《Chinese Medical Journal》 SCIE CAS CSCD 2022年第15期1829-1836,共8页
Background: Head and neck cancers (HNCs) are a heterogeneous group of tumors that progress owing to varied enviromental and genetic risk factors. Viral infections are threatening and adept at altering the expression o... Background: Head and neck cancers (HNCs) are a heterogeneous group of tumors that progress owing to varied enviromental and genetic risk factors. Viral infections are threatening and adept at altering the expression of cellular transcription factors such as nuclear factor kappa B (NF-κB) and deregulation of other cellular proteins like NF kappa B inhibitor alpha (IκBα). The present study was conducted to detect high-risk genotypes of human papillomavirus (HPV) and protein expression of NF-κB signaling pathway in HNC patients with HPV infection.Methods: For HPV detection, genomic DNA from 152 HNC tumors was extracted formalin-fixed paraffin-embedded tissue DNA kit. For genotyping, polymerase chain reaction (PCR) using a general primer, HPV type-specific primers and agarose gel electrophoresis were performed. Immunohistochemistry (IHC) was also performed on 4-μm thick tissue sections using HPV E6 monoclonal antibody. Protein expression analysis of NF-κB signaling pathway including p50, p65, and IκBα was performed using IHC.Results: PCR analysis showed that 24.3% (37/152) of HNC cases were HPV positive. Among HPV positive, 86.5% (32/37) were tobacco users, while among HPV negative, 66.9% (77/115) were tobacco users. A significant association of HPV positivity and tobacco user was observed by univariate analysis [P < 0.01;odds ratio (OR): 0.310, 95% confidence interval (CI): 0.110 to 0.870]. More HPV positive patients were with poor oral hygiene (78.3%) when compared with patients with good oral hygiene (21.6%) [P < 0.03, OR: 2.440, 95% CI: 1.650 to 3.600]. The results of the logistic regression analysis showed that age, tobacco use and oral hygiene are significant predictors (P < 0.02). PCR and IHC staining results confirmed that HPV16 was predominant among HNC cases (64.8%) when compared with HPV18 (35.2%). Expression of NF-κB proteins (p50, p65, and IκBα inhibitor) were also observed in HPV and non-HPV infected HNC tissues. IHC expression of p50, and p65 showed nuclear staining, while IκBα inhibitor showed cytoplasmic staining. Protein expression in HPV cases was higher as compared to HPV naive cases (P < 0.05).Conclusions: From the study, it can be established that the use of tobacco, oral hygiene, and HPV infection may be synergistically involved in modulating the expression of NF-κB signaling pathway for the development and progression of HNC in the Pakistani population. 展开更多
关键词 Human papillomavirus nf-kappa b p50 p65 bαinhibitor polymerase chain reaction Immunohistochemistry Head and neck cancer pakistani population
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阳和汤含药血清对乳腺癌干细胞增殖的影响 被引量:6
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作者 叶凯 何芬莉 +4 位作者 杨小娟 尚荣国 李康乐 钱建升 窦建卫 《国际中医中药杂志》 2019年第1期49-52,共4页
目的观察阳和汤含药血清对乳腺癌干细胞HMLER90hi增殖的影响,探讨其作用机制。方法将20只雌性SD大鼠按随机数字表法分为阳和汤低、中、高剂量组和对照组,制备阳和汤含药血清和空白血清。采用MTT法检测各组在24、48、72 h对HMLER90hi细... 目的观察阳和汤含药血清对乳腺癌干细胞HMLER90hi增殖的影响,探讨其作用机制。方法将20只雌性SD大鼠按随机数字表法分为阳和汤低、中、高剂量组和对照组,制备阳和汤含药血清和空白血清。采用MTT法检测各组在24、48、72 h对HMLER90hi细胞增殖的影响;实时荧光定量PCR检测各组细胞EphA4、NF-κB p50 mRNA表达水平。结果与对照组比较,阳和汤低、中、高剂量组细胞24 h[(0.818±0.061)、(0.706±0.073)、(0.587±0.052)比(0.928±0.075)]、48 h[(0.760±0.047)、(0.638±0.056)、(0.510±0.059)比(0.973±0.095)]、72 h[(0.672±0.102)、(0.508±0.092)、(0.448±0.048)比(1.023±0.099)]增殖活性均降低(P<0.05或P<0.01)。药物干预24 h后,与对照组比较,阳和汤低、中、高剂量组EphA4 mRNA[(0.54±0.07)、(0.54±0.07)、(0.33±0.04)比(0.68±0.09)]、NF-κB p50 mRNA[(0.69±0.10)、(0.54±0.08)、(0.41±0.06)比(0.85±0.13)]表达降低(P<0.05或P<0.01)。结论阳和汤可抑制乳腺癌干细胞HMLER90hi增殖,其作用机制可能与抑制单核巨噬细胞近分泌通路的传导有关。 展开更多
关键词 肿瘤干细胞 细胞增殖 受体 EphA4 NF-Κb p50亚单位 阳和汤 大鼠
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