1
|
Pan W, Tsokos MG, Scherlinger M, Li W, Tsokos GC. The PP2A regulatory subunit PPP2R2A controls NAD + biosynthesis to regulate T cell subset differentiation in systemic autoimmunity. Cell Rep 2024; 43:114379. [PMID: 38889006 DOI: 10.1016/j.celrep.2024.114379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 04/03/2024] [Accepted: 05/31/2024] [Indexed: 06/20/2024] Open
Abstract
The protein phosphatase 2A (PP2A) regulatory subunit PPP2R2A is involved in the regulation of immune response. We report that lupus-prone mice with T cells deficient in PPP2R2A display less autoimmunity and nephritis. PPP2R2A deficiency promotes NAD+ biosynthesis through the nicotinamide riboside (NR)-directed salvage pathway in T cells. NR inhibits murine Th17 and promotes Treg cell differentiation, in vitro, by PΑRylating histone H1.2 and causing its reduced occupancy in the Foxp3 loci and increased occupancy in the Il17a loci, leading to increased Foxp3 and decreased Il17a transcription. NR treatment suppresses disease in MRL.lpr mice and restores NAD+-dependent poly [ADP-ribose] polymerase 1 (PARP1) activity in CD4 T cells from patients with systemic lupus erythematosus (SLE), while reducing interferon (IFN)-γ and interleukin (IL)-17 production. We conclude that PPP2R2A controls the level of NAD+ through the NR-directed salvage pathway and promotes systemic autoimmunity. Translationally, NR suppresses lupus nephritis in mice and limits the production of proinflammatory cytokines by SLE T cells.
Collapse
Affiliation(s)
- Wenliang Pan
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA.
| | - Maria G Tsokos
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Marc Scherlinger
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA; Rheumatology Department, Strasbourg University Hospital of Hautepierre, Strasbourg, France
| | - Wei Li
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - George C Tsokos
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA.
| |
Collapse
|
2
|
Wu Z, Liu K, Zhang X, Tang Q, Zeng L. CsNYC1a Mediates Chlorophyll Degradation and Albino Trait Formation in the Arbor-Type Tea Plant Camellia nanchuanica. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 38848450 DOI: 10.1021/acs.jafc.4c02956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2024]
Abstract
Albino germplasms are prized tea plant mutants with yellow/white leaves. However, understanding of the albino mechanisms in non-Camellia sinensis tea species remains limited. This study elucidated the albino trait formation in Nanchuan Dachashu (C. nanchuanica), an arbor-type tea species, and its association with tea quality. The yellow-leaved albino individual NH1 exhibited abnormal chloroplast ultrastructure and reduced chlorophyll/carotenoid levels compared to green-leaved NL1. Integrating transcriptomics, metabolomics, yeast one-hybrid, and transgenic approaches identified the chlorophyll b reductase gene CsNYC1a as a key regulator, which was significantly up-regulated in NH1, and its overexpression in Arabidopsis recapitulated the albino phenotype. In yeast, histone CsH1.2 binds to the CsNYC1a promoter. These findings suggest that CsH1.2-CsNYC1a-mediated chlorophyll degradation may be a key mechanism underlying albino formation in Nanchuan Dachashu. In addition, as a germplasm with higher polyphenol-to-amino acid ratio than NL1, NH1 offers more possibilities for breeding and application.
Collapse
Affiliation(s)
- Zhijun Wu
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Keyi Liu
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Xin Zhang
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Qianhui Tang
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Liang Zeng
- College of Food Science, Southwest University, Chongqing 400715, China
| |
Collapse
|
3
|
Song Y, Li H, Lian R, Dou X, Li S, Xie J, Li X, Feng R, Li Z. Histone H1.2 Inhibited EMCV Replication through Enhancing MDA5-Mediated IFN-β Signaling Pathway. Viruses 2024; 16:174. [PMID: 38399950 PMCID: PMC10892618 DOI: 10.3390/v16020174] [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: 12/14/2023] [Revised: 01/18/2024] [Accepted: 01/22/2024] [Indexed: 02/25/2024] Open
Abstract
Histone H1.2 is a member of the linker histone family, which plays extensive and crucial roles not only in the regulation of chromatin dynamics, cell cycle, and cell apoptosis, but also in viral diseases and innate immunity response. Recently, it was discovered that H1.2 regulates interferon-β and inhibits influenza virus replication, whereas its role in other viral infections is poorly reported. Here, we first found the up-regulation of H1.2 during Encephalomyocarditis virus (EMCV) infection, implying that H1.2 was involved in EMCV infection. Overexpression of H1.2 inhibited EMCV proliferation, whereas knockdown of H1.2 showed a significant promotion of virus infection in HEK293T cells. Moreover, we demonstrated that overexpression of H1.2 remarkably enhanced the production of EMCV-induced type I interferon, which may be the crucial factor for H1.2 proliferation-inhibitory effects. We further found that H1.2 up-regulated the expression of the proteins of the MDA5 signaling pathway and interacted with MDA5 and IRF3 in EMCV infection. Further, we demonstrated that H1.2 facilitated EMCV-induced phosphorylation and nuclear translocation of IRF3. Briefly, our research uncovers the mechanism of H1.2 negatively regulating EMCV replication and provides new insight into antiviral targets for EMCV.
Collapse
Affiliation(s)
- Yangran Song
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China; (Y.S.); (H.L.); (R.L.); (X.D.); (S.L.); (J.X.); (X.L.)
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou 730030, China
| | - Huixia Li
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China; (Y.S.); (H.L.); (R.L.); (X.D.); (S.L.); (J.X.); (X.L.)
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China
| | - Ruiya Lian
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China; (Y.S.); (H.L.); (R.L.); (X.D.); (S.L.); (J.X.); (X.L.)
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou 730030, China
| | - Xueer Dou
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China; (Y.S.); (H.L.); (R.L.); (X.D.); (S.L.); (J.X.); (X.L.)
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China
| | - Shasha Li
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China; (Y.S.); (H.L.); (R.L.); (X.D.); (S.L.); (J.X.); (X.L.)
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou 730030, China
| | - Jingying Xie
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China; (Y.S.); (H.L.); (R.L.); (X.D.); (S.L.); (J.X.); (X.L.)
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou 730030, China
| | - Xiangrong Li
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China; (Y.S.); (H.L.); (R.L.); (X.D.); (S.L.); (J.X.); (X.L.)
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China
| | - Ruofei Feng
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China; (Y.S.); (H.L.); (R.L.); (X.D.); (S.L.); (J.X.); (X.L.)
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou 730030, China
| | - Zhiqiang Li
- Department of Medicine, Northwest Minzu University, Lanzhou 730030, China
| |
Collapse
|
4
|
Chen Y, Shi J, Wang X, Zhou L, Wang Q, Xie Y, Peng C, Kuang L, Yang D, Yang J, Yang C, Li X, Yuan Y, Zhou Y, Peng A, Zhang Y, Chen H, Liu X, Zheng L, Huang K, Li Y. An antioxidant feedforward cycle coordinated by linker histone variant H1.2 and NRF2 that drives nonsmall cell lung cancer progression. Proc Natl Acad Sci U S A 2023; 120:e2306288120. [PMID: 37729198 PMCID: PMC10523483 DOI: 10.1073/pnas.2306288120] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 08/11/2023] [Indexed: 09/21/2023] Open
Abstract
Nonsmall cell lung cancer (NSCLC) is highly malignant with limited treatment options, platinum-based chemotherapy is a standard treatment for NSCLC with resistance commonly seen. NSCLC cells exploit enhanced antioxidant defense system to counteract excessive reactive oxygen species (ROS), which contributes largely to tumor progression and resistance to chemotherapy, yet the mechanisms are not fully understood. Recent studies have suggested the involvement of histones in tumor progression and cellular antioxidant response; however, whether a major histone variant H1.2 (H1C) plays roles in the development of NSCLC remains unclear. Herein, we demonstrated that H1.2 was increasingly expressed in NSCLC tumors, and its expression was correlated with worse survival. When crossing the H1c knockout allele with a mouse NSCLC model (KrasLSL-G12D/+), H1.2 deletion suppressed NSCLC progression and enhanced oxidative stress and significantly decreased the levels of key antioxidant glutathione (GSH) and GCLC, the catalytic subunit of rate-limiting enzyme for GSH synthesis. Moreover, high H1.2 was correlated with the IC50 of multiple chemotherapeutic drugs and with worse prognosis in NSCLC patients receiving chemotherapy; H1.2-deficient NSCLC cells presented reduced survival and increased ROS levels upon cisplatin treatment, while ROS scavenger eliminated the survival inhibition. Mechanistically, H1.2 interacted with NRF2, a master regulator of antioxidative response; H1.2 enhanced the nuclear level and stability of NRF2 and, thus, promoted NRF2 binding to GCLC promoter and the consequent transcription; while NRF2 also transcriptionally up-regulated H1.2. Collectively, these results uncovered a tumor-driving role of H1.2 in NSCLC and indicate an "H1.2-NRF2" antioxidant feedforward cycle that promotes tumor progression and chemoresistance.
Collapse
Affiliation(s)
- Yuchen Chen
- Tongji School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan430030, China
| | - Jiajian Shi
- Tongji School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan430030, China
| | - Xiaomu Wang
- Department of Pharmacy, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang441000, China
| | - Lin Zhou
- Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China
| | - Qing Wang
- College of Life Sciences, Wuhan University, Wuhan430072, China
| | - Yunhao Xie
- College of Life Sciences, Wuhan University, Wuhan430072, China
| | - Chentai Peng
- Tongji School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan430030, China
| | - Linwu Kuang
- Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China
| | - Dong Yang
- Tongji School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan430030, China
| | - Jing Yang
- Tongji School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan430030, China
| | - Chen Yang
- Tongji School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan430030, China
| | - Xi Li
- Tongji School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan430030, China
| | - Yangmian Yuan
- College of Life Sciences, Wuhan University, Wuhan430072, China
| | - Yihao Zhou
- College of Life Sciences, Wuhan University, Wuhan430072, China
| | - Anlin Peng
- Department of Pharmacy, Wuhan Third Hospital and Tongren Hospital of Wuhan University, Wuhan430060, China
| | - Yu Zhang
- Tongji School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan430030, China
| | - Hong Chen
- Tongji School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan430030, China
| | - Xinran Liu
- Tongji School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan430030, China
| | - Ling Zheng
- College of Life Sciences, Wuhan University, Wuhan430072, China
| | - Kun Huang
- Tongji School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, Wuhan430030, China
- Tongji-RongCheng Biomedical Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China
| | - Yangkai Li
- Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan430030, China
| |
Collapse
|
5
|
Yuan Y, Fan Y, Zhou Y, Qiu R, Kang W, Liu Y, Chen Y, Wang C, Shi J, Liu C, Li Y, Wu M, Huang K, Liu Y, Zheng L. Linker histone variant H1.2 is a brake on white adipose tissue browning. Nat Commun 2023; 14:3982. [PMID: 37414781 PMCID: PMC10325996 DOI: 10.1038/s41467-023-39713-w] [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: 01/03/2023] [Accepted: 06/27/2023] [Indexed: 07/08/2023] Open
Abstract
Adipose-tissue is a central metabolic organ for whole-body energy homeostasis. Here, we find that highly expressed H1.2, a linker histone variant, senses thermogenic stimuli in beige and brown adipocytes. Adipocyte H1.2 regulates thermogenic genes in inguinal white-adipose-tissue (iWAT) and affects energy expenditure. Adipocyte H1.2 deletion (H1.2AKO) male mice show promoted iWAT browning and improved cold tolerance; while overexpressing H1.2 shows opposite effects. Mechanistically, H1.2 binds to the promoter of Il10rα, which encodes an Il10 receptor, and positively regulates its expression to suppress thermogenesis in a beige cell autonomous manner. Il10rα overexpression in iWAT negates cold-enhanced browning of H1.2AKO male mice. Increased H1.2 level is also found in WAT of obese humans and male mice. H1.2AKO male mice show alleviated fat accumulation and glucose intolerance in long-term normal chow-fed and high fat diet-fed conditions; while Il10rα overexpression abolishes these effects. Here, we show a metabolic function of H1.2-Il10rα axis in iWAT.
Collapse
Affiliation(s)
- Yangmian Yuan
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, 430072, Wuhan, China
| | - Yu Fan
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, 430072, Wuhan, China
| | - Yihao Zhou
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, 430072, Wuhan, China
| | - Rong Qiu
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, 430072, Wuhan, China
| | - Wei Kang
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, 430072, Wuhan, China
| | - Yu Liu
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, 430072, Wuhan, China
| | - Yuchen Chen
- School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, 430030, Wuhan, China
| | - Chenyu Wang
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, 430072, Wuhan, China
| | - Jiajian Shi
- School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, 430030, Wuhan, China
| | - Chengyu Liu
- Department of Transfusion Medicine, Wuhan Hospital of Traditional Chinese and Western Medicine, Tongji Medical College, Huazhong University of Science and Technology, 430030, Wuhan, China
| | - Yangkai Li
- Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030, Wuhan, China
| | - Min Wu
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, 430072, Wuhan, China
| | - Kun Huang
- School of Pharmacy, Tongji Medical College and State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Huazhong University of Science and Technology, 430030, Wuhan, China
| | - Yong Liu
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, 430072, Wuhan, China
| | - Ling Zheng
- Hubei Key Laboratory of Cell Homeostasis, Frontier Science Center for Immunology and Metabolism, College of Life Sciences, Wuhan University, 430072, Wuhan, China.
| |
Collapse
|
6
|
Kumar A, Maurya P, Hayes JJ. Post-Translation Modifications and Mutations of Human Linker Histone Subtypes: Their Manifestation in Disease. Int J Mol Sci 2023; 24:ijms24021463. [PMID: 36674981 PMCID: PMC9860689 DOI: 10.3390/ijms24021463] [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: 11/07/2022] [Revised: 12/20/2022] [Accepted: 01/03/2023] [Indexed: 01/14/2023] Open
Abstract
Linker histones (LH) are a critical component of chromatin in addition to the canonical histones (H2A, H2B, H3, and H4). In humans, 11 subtypes (7 somatic and 4 germinal) of linker histones have been identified, and their diverse cellular functions in chromatin structure, DNA replication, DNA repair, transcription, and apoptosis have been explored, especially for the somatic subtypes. Delineating the unique role of human linker histone (hLH) and their subtypes is highly tedious given their high homology and overlapping expression patterns. However, recent advancements in mass spectrometry combined with HPLC have helped in identifying the post-translational modifications (PTMs) found on the different LH subtypes. However, while a number of PTMs have been identified and their potential nuclear and non-nuclear functions explored in cellular processes, there are very few studies delineating the direct relevance of these PTMs in diseases. In addition, recent whole-genome sequencing of clinical samples from cancer patients and individuals afflicted with Rahman syndrome have identified high-frequency mutations and therefore broadened the perspective of the linker histone mutations in diseases. In this review, we compile the identified PTMs of hLH subtypes, current knowledge of the relevance of hLH PTMs in human diseases, and the correlation of PTMs coinciding with mutations mapped in diseases.
Collapse
Affiliation(s)
- Ashok Kumar
- Department of Biochemistry and Biophysics, University of Rochester, Rochester, NY 14642, USA
- Correspondence:
| | - Preeti Maurya
- Aab Cardiovascular Research Institute, University of Rochester, Rochester, NY 14642, USA
| | - Jeffrey J. Hayes
- Department of Biochemistry and Biophysics, University of Rochester, Rochester, NY 14642, USA
| |
Collapse
|
7
|
Xing X, Tian Y, Jin X. Immune infiltration and a necroptosis-related gene signature for predicting the prognosis of patients with cervical cancer. Front Genet 2023; 13:1061107. [PMID: 36685937 PMCID: PMC9852722 DOI: 10.3389/fgene.2022.1061107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 12/01/2022] [Indexed: 01/07/2023] Open
Abstract
Background: Cervical cancer (CC), the fourth most common cancer among women worldwide, has high morbidity and mortality. Necroptosis is a newly discovered form of cell death that plays an important role in cancer development, progression, and metastasis. However, the expression of necroptosis-related genes (NRGs) in CC and their relationship with CC prognosis remain unclear. Therefore, we screened the signature NRGs in CC and constructed a risk prognostic model. Methods: We downloaded gene data and clinical information of patients with cervical squamous cell carcinoma and endocervical adenocarcinoma (CESC) from The Cancer Genome Atlas (TCGA) database. We performed functional enrichment analysis on the differentially expressed NRGs (DENRGs). We constructed prognostic models and evaluated them by Cox and LASSO regressions for DENRGs, and validated them using the International Cancer Genome Consortium (ICGC) dataset. We used the obtained risk score to classify patients into high- and low-risk groups. We employed the ESTIMATE and single sample gene set enrichment analysis (ssGSEA) algorithms to explore the relationship between the risk score and the clinical phenotype and the tumor immune microenvironment. Results: With LASSO regression, we established a prognostic model of CC including 16 signature DENRGs (TMP3, CHMP4C, EEF1A1, FASN, TNF, S100A10, IL1A, H1.2, SLC25A5, GLTP, IFNG, H2AC13, TUBB4B, AKNA, TYK2, and H1.5). The risk score was associated with poor prognosis in CC. Survival was lower in the high-risk group than the low-risk group. The nomogram based on the risk score, T stage, and N stage showed good prognostic predictive power. We found significant differences in immune scores, immune infiltration analysis, and immune checkpoints between the high- and low-risk groups (p < 0.05). Conclusion: We screened for DENRGs based on the TCGA database by using bioinformatics methods, and constructed prognostic models based on the signature DENRGs, which we confirmed as possibly having important biological functions in CC. Our study provides a new perspective on CC prognosis and immunity, and offers a series of new targets for future treatment.
Collapse
Affiliation(s)
- Xuewei Xing
- The First Clinical Medical College, School of Medicine, Nanchang University, Nanchang, China,Department of Assisted Reproduction, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yanan Tian
- Postgraduate Union Training Base of Jinzhou Medical University, Xiangyang No 1 People’s Hospital, Hubei University of Medicine, Xiangyang, China,Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Xiangyang City, Department of Obstetrics and Gynaecology, Xiangyang No. 1 People’s Hospital, Hubei University of Medicine, Xiangyang, China
| | - Xuan Jin
- Department of Assisted Reproduction, The First Affiliated Hospital of Nanchang University, Nanchang, China,*Correspondence: Xuan Jin,
| |
Collapse
|
8
|
Song L, Soomro MA, Wang L, Song Y, Hu G. Identification and functional analysis of histone 1.2-like in red sea bream (Pagrus major). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2023; 138:104529. [PMID: 36087785 DOI: 10.1016/j.dci.2022.104529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/31/2022] [Accepted: 08/31/2022] [Indexed: 06/15/2023]
Abstract
Histone H1 acts as an essential chromatin component and participates in the formation of higher chromatin structures together with core histones. In addition, H1 also has important functions in physiological processes such as gene expression regulation, DNA repair, and the immune response. In this study, the histone homologous protein Pm-H1.2-like was identified from the transcriptome database of Pagrus major we studied previously. Conservatism of evolution was investigated by sequence alignment and phylogenetic analysis. Transcripts of Pm-H1.2-like were detected in P. major tissues. The highest expression level was found in gill and skin tissues. Consistent with the data from the transcriptome database, we observed that the expression of Pm-H1.2-like was rapidly induced in nonspecific cytotoxic cells (NCCs) infected with inactivated Vibrio anguillarum. Gene silencing of Pm-H1.2-like by RNAi significantly suppressed the expression of NK-lysin and GZMB in NCCs at 12 h after pathogen stimulation, but had no significant effect on IFN-γ expression. Next, we obtained the fusion proteins rPm-H1.2-like and rPm-H1.2-like (36-80) through prokaryotic expression. ELISA showed that rPm-H1.2-like bound to oligonucleotide (ODN) in a concentration-dependent manner, while no binding activity of rPm-H1.2-like (36-80) with ODN was observed. This study confirmed that Pm-H1.2-like actively participates in the immune response of NCCs to bacterial infection, deepening the understanding of the immune features of histone H1 in fish.
Collapse
Affiliation(s)
- Lianfei Song
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China; Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003, China
| | - Maqsood Ahmed Soomro
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China; Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003, China
| | - Lingshu Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China; Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003, China
| | - Yuting Song
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China; Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003, China
| | - Guobin Hu
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China; Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003, China.
| |
Collapse
|