Cell Biology and Toxicology最新文献

{"title":"NFKB1 as a key player in Tumor biology: from mechanisms to therapeutic implications.","authors":"Zixuan Song, Zheng Feng, Xiaoxue Wang, Jingying Li, Dandan Zhang","doi":"10.1007/s10565-024-09974-2","DOIUrl":"10.1007/s10565-024-09974-2","url":null,"abstract":"<p><p>NFKB1, a core transcription factor critical in various biological process (BP), is increasingly studied for its role in tumors. This research combines literature reviews, meta-analyses, and bioinformatics to systematically explore NFKB1's involvement in tumor initiation and progression. A unique focus is placed on the NFKB1-94 ATTG promoter polymorphism, highlighting its association with cancer risk across diverse genetic models and ethnic groups, alongside comprehensive analysis of pan-cancer expression patterns and drug sensitivity. The study reveals the intricate connections between NFKB1 and tumors, highlighting its significant roles in invasion, metastasis, genomic stability, and metabolic changes. Through meta-analysis, it is evidenced that tumor specimens exhibit increased NFKB1 expression when compared to non-tumor specimens, although its association with cancer incidence requires further investigation. Analysis from the Gene Expression Omnibus (GEO) database suggests that high NFKB1 gene expression may not markedly impact tumor patient prognosis. The noticeable correlation between the NFKB1-94 ATTG promoter polymorphic sequence and elevated cancer susceptibility is highlighted across different genetic models. Furthermore, bioinformatics analysis uncovers NFKB1's association with the sensitivity to various anticancer drugs and its central involvement in crucial BP like the cell cycle, cytoskeleton assembly, and cellular senescence. Overall, NFKB1's expression and polymorphisms are significantly linked to tumor risk, prognosis, and treatment response, highlighting its prospect as a forthcoming aim for cancer treatment. This study offers a robust foundation for further exploration of NFKB1's mechanisms and the development of innovative therapeutic strategies.</p>","PeriodicalId":9672,"journal":{"name":"Cell Biology and Toxicology","volume":"41 1","pages":"29"},"PeriodicalIF":5.3,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11724797/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142963876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ANXA10 sensitizes microsatellite instability-high colorectal cancer to anti-PD-1 immunotherapy via assembly of HLA-DR dimers by regulating CD74.","authors":"Yiting Sun, Bowen Yang, Ti Wen, Xiaoyu Guo, Danni Li, Ruichuan Shi, Fuqiang Zhang, Dongni Wang, Ce Li, Xiujuan Qu","doi":"10.1007/s10565-024-09982-2","DOIUrl":"10.1007/s10565-024-09982-2","url":null,"abstract":"<p><strong>Background: </strong>Microsatellite instability-high (MSI-H) metastatic colorectal cancer (CRC) patients are the dominant population in immune checkpoint blockade treatments, while more than half of them could not benefit from single-agent immunotherapy. We tried to identify the biomarker of MSI-H CRC and explore its role and mechanism in anti-PD-1 treatments. Tumor-specific MHC-II was linked to a better response to anti-PD-1 in MSI-H CRC and CD74 promoted assembly and transport of HLA-DR dimers.</p><p><strong>Methods: </strong>The characteristic gene was screened by data analysis of single-cell and bulk transcriptome sequencing from public datasets. MSI-H CRC cells co-cultured with peripheral blood mononuclear cells and syngeneic model in C57BL/6 mice were performed to detect the sensitivity to anti-PD-1 treatments respectively.</p><p><strong>Results: </strong>ANXA10 was identified as a characteristic gene of MSI-H CRC and its expression was obviously greater in MSI-H than MSS CRC. ANXA10 significantly sensitized MSI-H CRC to anti-PD-1 treatments in vitro and in vivo. Specifically, ANXA10 promoted HLA-DR dimers in and on the surface of MSI-H CRC by increasing CD74 expression. Besides, this work demonstrated that ANXA10 contributed to better clinical benefits with anti-PD-1 therapy in MSI-H CRC patients.</p><p><strong>Conclusions: </strong>Our results provided a novel molecular marker ANXA10 to identify benefit population of MSI-H CRC for improving efficacy of anti-PD-1 and contributed to selection of treatment strategies.</p>","PeriodicalId":9672,"journal":{"name":"Cell Biology and Toxicology","volume":"41 1","pages":"25"},"PeriodicalIF":5.3,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11717857/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142945282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long-term mitochondrial and metabolic impairment in lymphocytes of subjects who recovered after severe COVID-19.","authors":"Irene Gómez-Delgado, Andrea R López-Pastor, Adela González-Jiménez, Carlos Ramos-Acosta, Yenitzeh Hernández-Garate, Neus Martínez-Micaelo, Núria Amigó, Laura Espino-Paisán, Eduardo Anguita, Elena Urcelay","doi":"10.1007/s10565-024-09976-0","DOIUrl":"10.1007/s10565-024-09976-0","url":null,"abstract":"<p><p>The underlying mechanisms explaining the differential course of SARS-CoV-2 infection and the potential clinical consequences after COVID-19 resolution have not been fully elucidated. As a dysregulated mitochondrial activity could impair the immune response, we explored long-lasting changes in mitochondrial functionality, circulating cytokine levels, and metabolomic profiles of infected individuals after symptoms resolution, to evaluate whether a complete recovery could be achieved. Results of this pilot study evidenced that different parameters of aerobic respiration in lymphocytes of individuals recuperated from a severe course lagged behind those shown upon mild COVID-19 recovery, in basal conditions and after simulated reinfection, and they also showed altered glycolytic capacity. The severe groups showed trends to enhanced superoxide production in parallel to lower OPA1-S levels. Unbalance of pivotal mitochondrial fusion (MFN2, OPA1) and fission (DRP1, FIS1) proteins was detected, suggesting a disruption in mitochondrial dynamics, as well as a lack of structural integrity in the electron transport chain. In serum, altered cytokine levels of IL-1β, IFN-α2, and IL-27 persisted long after clinical recovery, and growing amounts of the latter after severe infection correlated with lower basal and maximal respiration, ATP production, and glycolytic capacity. Finally, a trend for higher circulating levels of 3-hydroxybutyrate was found in individuals recovered after severe compared to mild course. In summary, long after acute infection, mitochondrial and metabolic changes seem to differ in a situation of full recovery after mild infection versus the one evolving from severe infection.</p>","PeriodicalId":9672,"journal":{"name":"Cell Biology and Toxicology","volume":"41 1","pages":"27"},"PeriodicalIF":5.3,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11723900/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142945298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Proteomic patterns associated with ketamine response in major depressive disorders.","authors":"Nan Zhou, Xiaolei Shi, Runhua Wang, Chengyu Wang, Xiaofeng Lan, Guanxi Liu, Weicheng Li, Yanling Zhou, Yuping Ning","doi":"10.1007/s10565-024-09981-3","DOIUrl":"10.1007/s10565-024-09981-3","url":null,"abstract":"<p><strong>Background: </strong>Major depressive disorder (MDD) is characterized by persistent feelings of sadness and loss of interest. Ketamine has been widely used to treat MDD owing to its rapid effect in relieving depressive symptoms. Importantly, not all patients respond to ketamine treatment. Identifying sub-populations who will benefit from ketamine, as well as those who may not, prior to treatment initiation, would significantly advance precision medicine in patients with MDD.</p><p><strong>Methods: </strong>Here, we used mass spectrometry-based plasma proteomics to analyze matched pre- and post-ketamine treatment samples from a cohort of 30 MDD patients whose treatment outcomes and demographic and clinical characteristics were considered.</p><p><strong>Results: </strong>Ketamine responders and non-responders were identified according to their individual outcomes after two weeks of treatment. We analyzed proteomic alterations in post-treatment samples from responders and non-responders and identified a collection of six proteins pivotal to the antidepressive effect of ketamine. Subsequent co-regulation analysis revealed that pathways related to immune response were involved in ketamine response. By comparing the proteomic profiles of samples from the same individuals at the pre- and post-treatment time points, dynamic proteomic rearrangements induced by ketamine revealed that immune-related processes were activated in association with its antidepressive effect. Furthermore, receiver operating characteristic curve analysis of pre-treatment samples revealed three proteins with strong predictive performance in determining the response of patients to ketamine before receiving treatment.</p><p><strong>Conclusions: </strong>These findings provide valuable knowledge about ketamine response, which will ultimately lead to more personalized and effective treatments for patients.</p><p><strong>Trial registration: </strong>The study was registered in the Chinese Clinical Trials Registry (ChiCTR-OOC-17012239) on May 26, 2017.</p>","PeriodicalId":9672,"journal":{"name":"Cell Biology and Toxicology","volume":"41 1","pages":"26"},"PeriodicalIF":5.3,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11723896/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142945300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SENP1 inhibits aerobic glycolysis in Aβ_1-42-incubated astrocytes by promoting PUM2 deSUMOylation.","authors":"Qianshuo Liu, Meixi Jiang, Zhengze Wang, Jihong Meng, Hui Jia, Jing Li, Jiacai Lin, Libin Guo, Lianbo Gao","doi":"10.1007/s10565-025-09986-6","DOIUrl":"10.1007/s10565-025-09986-6","url":null,"abstract":"<p><p>Alzheimer's disease (AD), the most prevalent form of dementia in the elderly, involves critical changes such as reduced aerobic glycolysis in astrocytes and increased neuronal apoptosis, both of which are significant in the disease's pathology. In our study, astrocytes treated with amyloid β1-42 (Aβ_1-42) to simulate AD conditions exhibited upregulated expressions of small ubiquitin-like modifier (SUMO)-specific protease 1 (SENP1) and Pumilio RNA Binding Family Member 2 (PUM2), alongside decreased levels of Nuclear factor erythroid 2-related factor 2 (NRF2). SENP1 is notably the most upregulated SUMOylation enzyme in Aβ_1-42-exposed astrocytes. Functional assays including Ni²⁺-Nitrilotriacetic acid (NTA) agarose bead pull-down and co-immunoprecipitation (Co-IP) confirmed SENP1's role in actively deSUMOylating PUM2, thereby enhancing its stability and expression. The interaction between PUM2 and the 3' untranslated region (3'UTR) of NRF2 mRNA reduces NRF2 levels, subsequently diminishing the transcriptional activation of critical glycolytic enzymes, Hexokinase 1 (HK1) and Glucose Transporter 1 (GLUT1). These changes contribute to the observed reduction in glycolytic function in astrocytes, exacerbating neuronal apoptosis. Targeted interventions, such as knockdown of Senp1 or Pum2 or overexpression of NRF2 in APPswe/PSEN1dE9 (APP/PS1) transgenic mice, effectively increased HK1 and GLUT1 levels, decreased apoptosis, and alleviated cognitive impairment. These findings highlight the important roles of the SENP1/PUM2/NRF2 pathway in influencing glucose metabolism in astrocytes, presenting new potential therapeutic targets for AD.</p>","PeriodicalId":9672,"journal":{"name":"Cell Biology and Toxicology","volume":"41 1","pages":"28"},"PeriodicalIF":5.3,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11723902/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142963880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel SIRT1 activator attenuates neuropathic pain by inhibiting spinal neuronal activation via the SIRT1-mGluR1/5 pathway.","authors":"Xiaobao Ding, Guizhi Wang, Yuwen Lin, Wenli Hu, Chen Chen, Jian Gao, Yuqing Wu, Chenghua Zhou","doi":"10.1007/s10565-024-09970-6","DOIUrl":"10.1007/s10565-024-09970-6","url":null,"abstract":"<p><p>Neuropathic pain is a type of pain caused by an injury or disease of the somatosensory nervous system. Currently, there is still absence of effective therapeutic drugs for neuropathic pain, so developing new therapeutic drugs is urgently needed. In the present study, we observed the effect of Comp 6d, a novel silent information regulator 1 (SIRT1) activator synthesized in our laboratory, on neuropathic pain and investigated the mechanisms involved. We found that both intrathecal and intraperitoneal injections of Comp 6d effectively alleviated neuropathic pain induced by chronic constriction injury (CCI) or spared nerve injury (SNI). However, the effect of Comp 6d on neuropathic pain was abolished in SIRT1 knockout mice. These results demonstrated that Comp 6d alleviated neuropathic pain by specifically activating SIRT1 in the spinal cord. Moreover, long-term intraperitoneal injection of Comp 6d had no significant side effects on heart, liver and kidney in SNI mice. Further study showed that the improvement of neuropathic pain by Comp 6d was mediated by the downregulation of mGluR1/5 levels and the subsequent inhibition of spinal neuronal activation. Taken together, the present findings suggest that the novel SIRT1 activator Comp 6d inhibits the activation of spinal cord neurons via the SIRT1-mGluR1/5 pathway, thereby attenuating neuropathic pain. Comp 6d is expected to be an effective therapeutic agent for neuropathic pain.</p>","PeriodicalId":9672,"journal":{"name":"Cell Biology and Toxicology","volume":"41 1","pages":"24"},"PeriodicalIF":5.3,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11711878/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142945278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exosomal NEDD4L derived from HG+oxLDL-induced vascular endothelial cells accelerates macrophage M1 polarization and oxLDL uptake by ubiquitinating IκBα and PPARγ.","authors":"Guozhu Chen, Yisong Pei, Peng Jiang, Qiaoling Ye, Zulong Xie, Laxman Gyawali","doi":"10.1007/s10565-024-09973-3","DOIUrl":"10.1007/s10565-024-09973-3","url":null,"abstract":"<p><strong>Background: </strong>Vascular endothelial cell-derived exosomes are thought to mediate disease progression by regulating macrophage polarization. However, its mechanism in diabetes mellitus (DM)-related atherosclerosis (AS) progress is unclear.</p><p><strong>Methods: </strong>High-glucose (HG) and oxLDL were used to induce human cardiac microvascular endothelial cells (HCMECs) to mimic DM-related AS model. The conditioned medium (CM) from HG+oxLDL-induced HCMECs was incubated with THP1-M0 monocytes treated with LPS or oxLDL. The mRNA levels of macrophage M1/M2 polarization markers, NEDD4L, IκBα and PPARγ were determined by qRT-PCR. Flow cytometry was used to analyze macrophage marker. Dil-labeled oxLDL and oil red O staining were performed to assess oxLDL uptake by THP1-M0 cells. The levels of inflammatory factors were examined using ELISA. Transmission electron microscope was used for observing foam cell formation and exosome morphology. The protein levels of p-Smad1/Smad1, p-Smad2/Smad2, p-IκBα/IκBα, p-P65/P65, anti-lipid metabolism-related markers, and NEDD4L were tested by western blot. The interaction between NEDD4L and IκBα or PPARγ was assessed by Co-IP assay.</p><p><strong>Results: </strong>The CM of HG+oxLDL-induced HCMECs could promote macrophage M1 polarization, oxLDL uptake and foam cell formation, and exosome inhibiter GW4869 eliminated these effects. NEDD4L was overexpressed in exosomes from HG+oxLDL-induced HCMECs, which could be taken up by THP1-M0 cells. Exosomal NEDD4L knockdown inhibited macrophage M1 polarization, oxLDL uptake and foam cell formation by reducing the protein levels of p-Smad1/Smad1, p-Smad2/Smad2, p-IκBα/IκBα and p-P65/P65. NEDD4L could reduce IκBα and PPARγ expression through ubiquitination.</p><p><strong>Conclusion: </strong>HG+oxLDL-induced HCMECs-derived exosomal NEDD4L could enhance the ubiquitination of IκBα and PPARγ to facilitate macrophage M1 polarization and oxLDL uptake, thus accelerating DM-related AS.</p>","PeriodicalId":9672,"journal":{"name":"Cell Biology and Toxicology","volume":"41 1","pages":"23"},"PeriodicalIF":5.3,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11706887/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142945293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RNF112, whose transcription is regulated by KLF4, inhibits colorectal cancer growth via promoting ubiquitin-dependent degradation of NAA40.","authors":"Chunfei Li, Wenzheng Guan, Donghua Geng, Yong Feng","doi":"10.1007/s10565-024-09977-z","DOIUrl":"10.1007/s10565-024-09977-z","url":null,"abstract":"<p><strong>Background: </strong>RING finger protein 112 (RNF112) exerts a key role in human tumors. However, its biological function in colorectal cancer (CRC) has not been discussed. We aimed to explore the function and molecular mechanism of RNF112 in CRC.</p><p><strong>Results: </strong>In this study, RNF112 expression was notably decreased in CRC tissues and cells. Clinical analysis revealed a significant association between low RNF112 expression and tumor size, N classification and TNM stage. In vitro experiments demonstrated that overexpression of RNF112 repressed cell viability, promoted cell cycle arrest and apoptosis, while knocking down RNF112 had the opposite function. The tumor formation results in nude mice supported that RNF112 overexpression exerted anti-tumor effects by inhibiting cell growth and promoting cell apoptosis. Mechanistically, Krüppel-like factor 4 (KLF4) acted as an upstream regulator of RNF112 by mediating its transcription. Furthermore, we explored the downstream mechanism of RNF112 and discovered that it promoted ubiquitination and degradation of oncoprotein N-alpha-acetyltransferase 40 (NAA40) through ubiquitin ligase activity. In addition, overexpression of NAA40 eliminated the effect of RNF112 overexpression on CRC tumorigenesis.</p><p><strong>Conclusions: </strong>In summary, our findings confirm that RNF112, whose transcription is regulated by KLF4, inhibits CRC growth through promoting ubiquitin-dependent degradation of NAA40. We have unraveled the mechanism of KLF4-RNF112-NAA40 axis in CRC, which shed light on the therapeutic strategies for this disease.</p>","PeriodicalId":9672,"journal":{"name":"Cell Biology and Toxicology","volume":"41 1","pages":"22"},"PeriodicalIF":5.3,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11700914/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142930773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identification of cancer-associated fibroblast subtypes and prognostic model development in breast cancer: role of the RUNX1/SDC1 axis in promoting invasion and metastasis.","authors":"Yunhao Wu, Nu Li, Jin Shang, Jiazi Jiang, Xiaoliang Liu","doi":"10.1007/s10565-024-09950-w","DOIUrl":"10.1007/s10565-024-09950-w","url":null,"abstract":"<p><p>In this study, we identified cancer-associated fibroblast (CAF) molecular subtypes and developed a CAF-based prognostic model for breast cancer (BRCA). The heterogeneity of cancer-associated fibroblasts (CAFs) and their significant involvement in the advancement of BRCA were discovered employing single-cell RNA sequencing. Notably, we discovered that the RUNX1/SDC1 axis enhances BRCA cell invasion and metastasis. RUNX1 transcriptionally upregulates SDC1, which facilitates extracellular matrix remodeling and promotes tumor cell migration. This finding highlights the vital contribution of CAFs to the tumor microenvironment and provides new potential targets for therapeutic intervention. The predictive model showcased remarkable precision in anticipating patient outcomes and could guide personalized treatment strategies.</p>","PeriodicalId":9672,"journal":{"name":"Cell Biology and Toxicology","volume":"41 1","pages":"21"},"PeriodicalIF":5.3,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11698906/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142926788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DNAJB4/HLJ1 deficiency sensitizes diethylnitrosamine-induced hepatocarcinogenesis with peritumoral STAT3 activation.","authors":"Wei-Jia Luo, Wei-Lun Hsu, Chih-Yun Lu, Min-Hui Chien, Jung-Hsuan Chang, Kang-Yi Su","doi":"10.1007/s10565-024-09978-y","DOIUrl":"10.1007/s10565-024-09978-y","url":null,"abstract":"<p><p>Environmental chemicals and toxins are known to impact human health and contribute to cancer developments. Among these, genotoxins induce genetic mutations critical for cancer initiation. In the liver, proliferation serves not only as a compensatory mechanism for tissue repair but also as a potential risk factor for the progression of premalignant lesions. The role of Human Liver DnaJ-Like Protein (DNAJB4/HLJ1), a stress-responsive heat shock protein 40, in genotoxin-induced liver carcinogenesis remains unexplored. Using whole-genome transcriptomic analysis, we demonstrate that HLJ1 deficiency in mice results in altered gene signatures enriched in pathways associated with chemically induced liver cancer and IL-6/STAT3 signaling activation. Employing diethylnitrosamine (DEN) as a carcinogen, we further reveal that STAT3 and H2AX phosphorylation induced by short-term DEN treatment are amplified in HLJ1-deficient mice. In long-term DEN experiments, HLJ1 deletion enhances tumor proliferation and progression, accompanied by pronounced STAT3 phosphorylation in normal tissues rather than in tumor regions. The tumor-suppressive role of peritumoral HLJ1 is validated through the transplantation of HLJ1-wildtype B16F1 and LLC cancer cell lines into syngeneic HLJ1-deficient mice, which exhibits an augmented tumorigenic phenotype compared to wildtype controls. This study uncovers a previously unrecognized role of HLJ1 in suppressing liver carcinogenesis via the downregulation of STAT3 signaling in peritumoral normal cells. These findings suggest that HLJ1 reinforcement represents a promising strategy for liver cancer treatment and prevention.</p>","PeriodicalId":9672,"journal":{"name":"Cell Biology and Toxicology","volume":"41 1","pages":"20"},"PeriodicalIF":5.3,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11685265/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142909489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}