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Lv Z, Liu L, You J, Zhou P, Su Y, Zhao K, Zhang J, Zhu F. Small HBV surface antigen drives regorafenib resistance in HCC via KIAA1429-dependent m6A modification of CCR9. J Med Virol 2024; 96:e29894. [PMID: 39206838 DOI: 10.1002/jmv.29894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 07/20/2024] [Accepted: 08/19/2024] [Indexed: 09/04/2024]
Abstract
A substantial body of literature, including our own, points to a connection between hepatitis B virus (HBV) infection and the development of drug resistance in hepatocellular carcinoma (HCC), particularly against sorafenib. However, the influence of HBV on resistance to regorafenib, another therapeutic agent, has been less studied. In this study, we used the GEO database (GSE87630) and clinical samples to demonstrate that C-C motif chemokine receptor 9 (CCR9) was highly expressed in HBV-related HCC and predicted poor overall survival. Its overexpression correlated with HBsAg-positive HCC patients. Both univariate and multivariable Cox regression analysis elucidated CCR9 was an independent risk factor for poor overall survival in HCC patients. Our in vitro findings further revealed that HBV structural proteins, small HBV surface antigen (SHBs), triggered an upregulation of CCR9. Functional assays showed that SHBs enhanced HCC cell proliferation, migration, and invasion, increased ABCB1 and ABCC1 expression, and promoted regorafenib resistance via CCR9. Intriguingly, overexpression of HBV plasmid and an AAV-HBV mouse model both exhibited a significant elevation in global N6-methyladenosine (m6A) levels. Further investigations revealed that SHBs elevated these m6A levels, upregulated CCR9 and stabilized CCR9 mRNA through KIAA1429-mediated m6A modification, with sites 1373 and 1496 on CCR9 mRNA being critical for modification. In conclusion, SHBs promoted HCC progression and regorafenib resistance via KIAA1429-mediated m6A modification of CCR9. Our findings suggested that CCR9 could be a potential prognostic biomarker and a valuable molecular therapeutic target of regorafenib resistance in HBV-related HCC.
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Affiliation(s)
- Zhao Lv
- State Key Laboratory of Virology, Department of Medical Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Lijuan Liu
- State Key Laboratory of Virology, Department of Medical Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
- Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University, Wuhan, China
| | - Jian You
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan, China
| | - Ping Zhou
- State Key Laboratory of Virology, Department of Medical Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Yaru Su
- State Key Laboratory of Virology, Department of Medical Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Kexin Zhao
- State Key Laboratory of Virology, Department of Medical Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Jiahang Zhang
- State Key Laboratory of Virology, Department of Medical Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Fan Zhu
- State Key Laboratory of Virology, Department of Medical Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
- Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University, Wuhan, China
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Song J, Li Y, Wu K, Hu Y, Fang L. MyD88 and Its Inhibitors in Cancer: Prospects and Challenges. Biomolecules 2024; 14:562. [PMID: 38785969 PMCID: PMC11118248 DOI: 10.3390/biom14050562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 04/28/2024] [Accepted: 05/03/2024] [Indexed: 05/25/2024] Open
Abstract
The interplay between the immune system and cancer underscores the central role of immunotherapy in cancer treatment. In this context, the innate immune system plays a critical role in preventing tumor invasion. Myeloid differentiation factor 88 (MyD88) is crucial for innate immunity, and activation of MyD88 promotes the production of inflammatory cytokines and induces infiltration, polarization, and immune escape of immune cells in the tumor microenvironment. Additionally, abnormal MyD88 signaling induces tumor cell proliferation and metastasis, which are closely associated with poor prognosis. Therefore, MyD88 could serve as a novel tumor biomarker and is a promising target for cancer therapy. Current strategies targeting MyD88 including inhibition of signaling pathways and protein multimerization, have made substantial progress, especially in inflammatory diseases and chronic inflammation-induced cancers. However, the specific role of MyD88 in regulating tumor immunity and tumorigenic mechanisms remains unclear. Therefore, this review describes the involvement of MyD88 in tumor immune escape and disease therapy. In addition, classical and non-classical MyD88 inhibitors were collated to provide insights into potential cancer treatment strategies. Despite several challenges and complexities, targeting MyD88 is a promising avenue for improving cancer treatment and has the potential to revolutionize patient outcomes.
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Affiliation(s)
- Jiali Song
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China; (J.S.); (K.W.)
| | - Yuying Li
- Ruian People’s Hospital, Wenzhou Medical College Affiliated Third Hospital, Wenzhou 325000, China;
| | - Ke Wu
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China; (J.S.); (K.W.)
| | - Yan Hu
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China; (J.S.); (K.W.)
| | - Luo Fang
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China; (J.S.); (K.W.)
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Guo X, Zhang J, Zeng J, Guo Y, Zhao L. MiR-525-5p inhibits diffuse large B cell lymphoma progression via the Myd88/NF-κB signaling pathway. PeerJ 2023; 11:e16388. [PMID: 37953776 PMCID: PMC10634338 DOI: 10.7717/peerj.16388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 10/11/2023] [Indexed: 11/14/2023] Open
Abstract
Diffuse large B-cell lymphoma (DLBCL) is a B-cell lymphoma with a high degree of aggressiveness. Recently, evidence has shown that miR-525-5p is decreased in DLBCL, suggesting its possible involvement in tumor progression. In this study, miR-525-5p suppressed proliferation, invasion and clonogenicity, and increased apoptosis of U2932 cells, whereas miR-525-5p silencing enhanced tumor cell growth. Next, miR-525-5p targets the 3'-UTR of Myd88, and Myd88 protein was increased in lymphoma tissues. Similar to the miR-525-5p mimic, Myd88 siRNA suppressed proliferation, invasion, and clonogenicity, and enhanced apoptosis of U2932 cells. We observed that Myd88 reversed the inhibitory effect of miR-525-5p on tumor cell growth by transfecting cells with miR-525-5p mimics alone or together with Myd88 overexpression vector. In addition, in vivo studies have shown that compared to the control group, U2932 cells with upregulated miR-525-5p expression have a reduced ability to induce tumor formation. In conclusion, our results demonstrate that miR-525-5p inhibits the progression of DLBCL through the Myd88/NF-κB pathway, which largely fills the gap of previous studies, and our results may provide a new reference for the targeted treatment of DLBCL.
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Affiliation(s)
- Xiuchen Guo
- Department of Hematology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Jingbo Zhang
- Department of Hematology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Jingya Zeng
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, China
| | - Yiwei Guo
- Department of Hematology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Lina Zhao
- Department of Hematology, Harbin Medical University Cancer Hospital, Harbin, China
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You H, Wang X, Ma L, Zhang F, Zhang H, Wang Y, Pan X, Zheng K, Kong F, Tang R. Insights into the impact of hepatitis B virus on hepatic stellate cell activation. Cell Commun Signal 2023; 21:70. [PMID: 37041599 PMCID: PMC10088164 DOI: 10.1186/s12964-023-01091-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 02/26/2023] [Indexed: 04/13/2023] Open
Abstract
During chronic hepatitis B virus (HBV) infection, hepatic fibrosis is a serious pathological condition caused by virus-induced liver damage. The activation of hepatic stellate cells (HSCs) is a central event in the occurrence and progression of liver fibrosis. Although accumulating evidence has shown that HBV directly stimulates HSC activation, whether the virus infects and replicates in HSCs remains controversial. Inflammation is one of the obvious characteristics of chronic HBV infection, and it has been demonstrated that persistent inflammation has a predominant role in triggering and maintaining liver fibrosis. In particular, the regulation of HSC activation by HBV-related hepatocytes via various inflammatory modulators, including TGF-β and CTGF, in a paracrine manner has been reported. In addition to these inflammation-related molecules, several inflammatory cells are essential for the progression of HBV-associated liver fibrosis. Monocytes, macrophages, Th17 cells, NK cells, as well as NKT cells, participate in the modulation of HBV-related liver fibrosis by interacting with HSCs. This review summarizes current findings on the effects of HBV and the relevant molecular mechanisms involved in HSC activation. Because HSC activation is essential for liver fibrosis, targeting HSCs is an attractive therapeutic strategy to prevent and reverse hepatic fibrosis induced by HBV infection. Video abstract.
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Affiliation(s)
- Hongjuan You
- Jiangsu Key Laboratory of Immunity and Metabolism, Jiangsu International Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xing Wang
- Jiangsu Key Laboratory of Immunity and Metabolism, Jiangsu International Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Lihong Ma
- Jiangsu Key Laboratory of Immunity and Metabolism, Jiangsu International Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Fulong Zhang
- Imaging Department, The Second Affiliated Hospital of Shandong First Medical University, Taian, China
| | - Huanyang Zhang
- Jiangsu Key Laboratory of Immunity and Metabolism, Jiangsu International Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yuxin Wang
- Jiangsu Key Laboratory of Immunity and Metabolism, Jiangsu International Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xiucheng Pan
- Department of Infectious Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Kuiyang Zheng
- Jiangsu Key Laboratory of Immunity and Metabolism, Jiangsu International Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
- National Demonstration Center for Experimental Basic Medical Sciences Education, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Fanyun Kong
- Jiangsu Key Laboratory of Immunity and Metabolism, Jiangsu International Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China.
| | - Renxian Tang
- Jiangsu Key Laboratory of Immunity and Metabolism, Jiangsu International Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China.
- National Demonstration Center for Experimental Basic Medical Sciences Education, Xuzhou Medical University, Xuzhou, Jiangsu, China.
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Gao S, Jiang X, Wang L, Jiang S, Luo H, Chen Y, Peng C. The pathogenesis of liver cancer and the therapeutic potential of bioactive substances. Front Pharmacol 2022; 13:1029601. [PMID: 36278230 PMCID: PMC9581229 DOI: 10.3389/fphar.2022.1029601] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Liver cancer is the third most common cause of cancer-related deaths in the world and has become an urgent problem for global public health. Bioactive substances are widely used for the treatment of liver cancer due to their widespread availability and reduced side effects. This review summarizes the main pathogenic factors involved in the development of liver cancer, including metabolic fatty liver disease, viral infection, and alcoholic cirrhosis, and focuses on the mechanism of action of bioactive components such as polysaccharides, alkaloids, phenols, peptides, and active bacteria/fungi. In addition, we also summarize transformation methods, combined therapy and modification of bioactive substances to improve the treatment efficiency against liver cancer, highlighting new ideas in this field.
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Affiliation(s)
- Song Gao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China
- School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xingyue Jiang
- School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Liang Wang
- School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shanshan Jiang
- School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hanyuan Luo
- School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yan Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China
- School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Yan Chen, ; Cheng Peng,
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Yan Chen, ; Cheng Peng,
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Hua X, Zhang J, Ge S, Liu H, Du H, Niu Q, Chen X, Yang C, Zhang L, Liang C. CXCR3 antagonist AMG487 ameliorates experimental autoimmune prostatitis by diminishing Th1 cell differentiation and inhibiting macrophage M1 phenotypic activation. Prostate 2022; 82:1223-1236. [PMID: 35700340 DOI: 10.1002/pros.24395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 04/16/2022] [Accepted: 05/16/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Chronic prostatitis and chronic pelvic pain syndrome (CP/CPPS) is an inflammatory immune disease that is characterized by infiltrating inflammatory cells in the prostate and pelvic or by perineal pain. Receptor CXCR3modulates immune and inflammatory responses; however, the effects of CXCR3 antagonist AMG487 in the context of CP/CPPS are unknown. Therefore, we investigated the effect of AMG487 in experimental autoimmune prostatitis (EAP) mice and explored the potential functional mechanisms. METHODS The EAP model was induced by intradermally injecting a mixture of prostate antigens and complete Freund's adjuvant on Days 0 and 28. To evaluate the effect of AMG487 on EAP mice, treatment with AMG487 and vehicle solution was conducted for the indicated period. Then, procedures were performed, including behavioral test, to evaluate the pain response to stimulation before the mice were killed and a histological assessment to evaluate the inflammation after the mice were killed. Immunofluorescence, flow cytometry, and Western blot assay were used to analyze the functional phenotype and regulation mechanism of AMG487 on T helper type 1 (Th1) cells and macrophages. RESULTS We found high expression of CXCR3 in human benign prostate tissues with inflammation and EAP mice. The elevated CXCR3 in prostate tissues correlates with the severity of inflammation. CXCR3 antagonist AMG487 treatment ameliorated the inflammatory changes and the pelvic pain of EAP mice. AMG487 inhibits Th1 cell differentiation through the IL-12/STAT4pathway and inhibits pro-inflammatory M1 macrophages through the lipopolysaccharide/NF-κB p65signaling. AMG487 could inhibit the secretion of inflammatory mediators in EAP mice. CONCLUSION CXCR3 antagonist AMG487 could ameliorate the inflammatory changes and the pelvic pain of EAP mice by diminishing Th1 cell differentiation and inhibiting macrophage M1 phenotypic activation. Thus, the results imply that AMG487 has the potential as an effective therapeutic agent in the prevention and treatment of EAP.
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Affiliation(s)
- Xiaoliang Hua
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
| | - Jiong Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
| | - Shengdong Ge
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
| | - Haoran Liu
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
| | - Hexi Du
- The Institute of Urology, Anhui Medical University, Hefei, China
| | - Qingsong Niu
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
| | - Xianguo Chen
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
| | - Cheng Yang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
| | - Li Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
| | - Chaozhao Liang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
- Anhui Institute of Translational Medicine, Hefei, China
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Ashfaq I, Sheikh N, Fatima N, Tayyeb A. Inhibition of anti-inflammatory pathway through suppressors of cytokine signalling (Socs2/Socs3) in the initiation of hepatocellular carcinoma. Saudi J Biol Sci 2022; 29:103348. [PMID: 35800143 PMCID: PMC9253924 DOI: 10.1016/j.sjbs.2022.103348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 04/30/2022] [Accepted: 06/10/2022] [Indexed: 11/23/2022] Open
Abstract
Hepatocellular carcinoma (HCC), a leading cause of cancer related deaths is predominantly driven by chronic inflammatory responses. Due to asymptomatic nature and lack of early patient biopsies, precise involvement of inflammation in hepatic injury initiation remains unidentified. Aim of the study was to elucidate the regulation patterns of inflammatory signalling from initiation of hepatic injury to development of HCC. HCC mice model was established using DEN followed by repeated doses of CCl4 and sacrificed at three different stages of disease comprising 7, 14 and 21 weeks. Serum biochemical tests, hepatic lipids quantification, histopathology and qPCR analyses were conducted to characterize the initiation and progression of liver injury and inflammatory signalling. Notably, at 7 weeks, we observed hepatocyte damage and periportal necrotic bodies coupled with induction of Socs2/Socs3 and anti-inflammatory cytokine Il-10. At 14 weeks, mice liver showed advancement of liver injury with micro-vesicular steatosis and moderate collagen deposition around portal zone. With progression of injury, the expression of Socs3 was declined with further reduction of Il-10 and Tgf-β indicating the disturbance of anti-inflammatory mechanism. In contrast, pro-inflammatory cytokines Il1-β, Il6 and Tnf-α were upregulated contributing inflammation. Subsequently, at 21 weeks severe liver damage was estimated as characterized by macro-vesicular steatosis, perisinusoidal collagen bridging, immune cell recruitment and significant upregulation of Col-1α and α-Sma. In parallel, there was significant upregulation of pro/anti-inflammatory cytokines highlighting the commencement of chronic inflammation. Findings of the study suggest that differential regulation of cytokine suppressors and inflammatory cytokines might play role in the initiation and progression of hepatic injury leading towards HCC.
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Affiliation(s)
- Isbah Ashfaq
- Cell & Molecular Biology Lab, Institute of Zoology, University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan
- School of Biological Sciences (SBS), University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan
| | - Nadeem Sheikh
- Cell & Molecular Biology Lab, Institute of Zoology, University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan
| | - Naz Fatima
- Cell & Molecular Biology Lab, Institute of Zoology, University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan
- Department of Zoology, Faculty of Science and Technology, University of Central Punjab, Lahore, Pakistan
| | - Asima Tayyeb
- School of Biological Sciences (SBS), University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan
- Corresponding author at: School of Biological Sciences (SBS), University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan.
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