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Hasimu A, Bahabayi A, Xiong Z, Li Q, Zhang Z, Zeng X, Zheng M, Yuan Z, Liu C. SIT1 identifies circulating hypoactive T cells with elevated cytotoxic molecule secretion in systemic lupus erythematosus patients. Immunol Res 2024:10.1007/s12026-024-09481-w. [PMID: 38691318 DOI: 10.1007/s12026-024-09481-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Accepted: 04/15/2024] [Indexed: 05/03/2024]
Abstract
This study aims to elucidate the expression and functionality of SIT1 in circulating CD8/CD4 + T cells in humans and to delineate its significance in systemic lupus erythematosus (SLE) patients. We employed multiparametric flow cytometry to investigate the expression of SIT1 in circulating CD8/CD4 + T cells and their respective subsets, comparing healthy controls (HCs) with SLE patients. Furthermore, we assessed the levels of granzyme B, perforin, IL-17, and IFN-γ in SIT1-related CD8/CD4 + T cells from both HCs and SLE patients, both before and after PMA stimulation. Clinically, we conducted receiver operating characteristic curve analysis and correlation analysis to evaluate the clinical relevance of SIT1-related CD8/CD4 + T cells in SLE patients. SIT1 exhibited higher expression in CD4 + T cells, with SIT1 - T cells demonstrating elevated levels of granzyme B, perforin, and IFN-γ compared to SIT1 + T cells. PMA-stimulated T cells exhibited reduced SIT1 expression compared to unstimulated T cells. SLE patients displayed increased SIT1 + proportions in CD8 + T cells and decreased SIT1 + CD4 + T cell numbers. Additionally, SIT1 + cells in SLE patients exhibited significantly higher levels of granzyme B and perforin compared to HCs. SIT1 + cells demonstrated significant associations with clinical indicators in SLE patients, with indicators related to SIT1 proving valuable in the diagnosis of SLE patients. SIT1 is inversely correlated with T cell activation. In SLE patients, SIT1 expression is altered in T cells concomitant with an augmented secretion of cytotoxic molecules. This upregulation may contribute to the pathogenesis of SLE and enhance its diagnostic potential.
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Affiliation(s)
- Ainizati Hasimu
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, China
| | - Ayibaota Bahabayi
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, China
| | - Ziqi Xiong
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, China
| | - Qi Li
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, China
| | - Zhonghui Zhang
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, China
| | - Xingyue Zeng
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, China
| | - Mohan Zheng
- School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Zihang Yuan
- School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Chen Liu
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, China.
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Zhang Z, Bahabayi A, Liu D, Hasimu A, Zhang Y, Guo S, Liu R, Zhang K, Li Q, Xiong Z, Wang P, Liu C. KLRB1 defines an activated phenotype of CD4+ T cells and shows significant upregulation in patients with primary Sjögren's syndrome. Int Immunopharmacol 2024; 133:112072. [PMID: 38636371 DOI: 10.1016/j.intimp.2024.112072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 04/07/2024] [Accepted: 04/09/2024] [Indexed: 04/20/2024]
Abstract
OBJECTIVE This study aimed to investigate the role of KLRB1 (CD161) in human CD4+ T cells and elucidate its significance in primary Sjögren's syndrome (pSS). METHODS Peripheral blood samples from 37 healthy controls and 44 pSS patients were collected. The publicly available single-cell RNA-Seq data from pSS patient PBMCs were utilized to analyse KLRB1 expression in T cells. KLRB1-expressing T lymphocyte subset proportions in pSS patients and healthy controls were determined by flow cytometry. CD25, Ki-67, cytokine secretion, and chemokine receptor expression in CD4+ KLRB1+ T cells were detected and compared with those in CD4+ KLRB1- T cells. Correlation analysis was conducted between KLRB1-related T-cell subsets and clinical indicators. ROC curves were generated to explore the diagnostic potential of KLRB1 for pSS. RESULTS KLRB1 was significantly upregulated following T-cell activation, and Ki-67 and CD25 expression was significantly greater in CD4+ KLRB1+ T cells than in CD4+ KLRB1- T cells. KLRB1+ CD4+ T cells exhibited greater IL-17A, IL-21, IL-22, and IFN-γ secretion upon stimulation, and there were significantly greater proportions of CCR5+, CCR2+, CX3CR1+, CCR6+, and CXCR3+ cells among CD4+ KLRB1+ T cells than among CD4+ KLRB1- T cells. Compared with that in HCs, KLRB1 expression in CD4+ T cells was markedly elevated in pSS patients and significantly correlated with clinical disease indicators. CONCLUSION KLRB1 is a characteristic molecule of the CD4+ T-cell activation phenotype. The increased expression of KLRB1 in the CD4+ T cells of pSS patients suggests its potential involvement in the pathogenesis of pSS and its utility as an auxiliary diagnostic marker for pSS.
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Affiliation(s)
- Zhonghui Zhang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Ayibaota Bahabayi
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Danni Liu
- School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Ainizati Hasimu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Yangyang Zhang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Siyu Guo
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Ruiqing Liu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Ke Zhang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Qi Li
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Ziqi Xiong
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Pingzhang Wang
- Department of Immunology, NHC Key Laboratory of Medical Immunology (Peking University), Medicine Innovation Center for Fundamental Research on Major Immunology-related Diseases, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China; Peking University Center for Human Disease Genomics, Peking University Health Science Center, Beijing, China.
| | - Chen Liu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China.
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Liu C, Zeng X, Xiong Z, Bahabayi A, Hasimu A, Liu T, Zheng M, Ren L, Alimu X, Lu S. Id1 expression in CD4 T cells promotes differentiation and function of follicular helper T cells and upregulation of related functional molecules. Immunology 2024. [PMID: 38501859 DOI: 10.1111/imm.13782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 03/06/2024] [Indexed: 03/20/2024] Open
Abstract
Although the roles of E proteins and inhibitors of DNA-binding (Id) in T follicular helper (TFH) and T follicular regulatory (TFR) cells have been previously reported, direct models demonstrating the impact of multiple E protein members have been lacking. To suppress all E proteins including E2A, HEB and E2-2, we overexpressed Id1 in CD4 cells using a CD4-Id1 mouse model, to observe any changes in TFH and TFR cell differentiation. Our objective was to gain better understanding of the roles that E proteins and Id molecules play in the differentiation of TFH and TFR cells. The CD4-Id1 transgenic (TG) mice that we constructed overexpressed Id1 in CD4 cells, inhibiting E protein function. Our results showed an increase in the proportion and absolute numbers of Treg, TFH and TFR cells in the spleen of TG mice. Additionally, the expression of surface characterisation molecules PD-1 and ICOS was significantly upregulated in TFH and TFR cells. The study also revealed a downregulation of the marginal zone B cell precursor and an increase in the activation and secretion of IgG1 in spleen B cells. Furthermore, the peripheral TFH cells of TG mice enhanced the function of assisting B cells. RNA sequencing results indicated that a variety of TFH-related functional molecules were upregulated in TFH cells of Id1 TG mice. In conclusion, E proteins play a crucial role in regulating TFH/TFR cell differentiation and function and suppressing E protein activity promotes germinal centre humoral immunity, which has important implications for immune regulation and treating related diseases.
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Affiliation(s)
- Chen Liu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Xingyue Zeng
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Ziqi Xiong
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Ayibaota Bahabayi
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Ainizati Hasimu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Tianci Liu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Mohan Zheng
- School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Liwei Ren
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Xiayidan Alimu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Songsong Lu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
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Zhao Y, Zhao M, Li M, Ma X, Zheng M, Nie Y, Zhu Y, Ren J, Hasimu A, Yuan Z, Li Q, Bahabayi A, Zhang Z, Zeng X, Liu C. Alterations in Helios+ T cell subsets in peripheral blood of early-stage lung adenocarcinoma patients: Implications for early diagnosis. Immunobiology 2023; 228:152749. [PMID: 37778128 DOI: 10.1016/j.imbio.2023.152749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 09/05/2023] [Accepted: 09/20/2023] [Indexed: 10/03/2023]
Abstract
OBJECTIVE This study aimed to investigate the changes and significance of circulating Helios-associated T cell subsets in patients with early-stage lung adenocarcinoma (LUAD). METHODS Blood samples were collected from 35 healthy controls and 34 patients with early-stage LUAD. Flow cytometry was used to analyze various CD4+ T cell subsets, including regulatory T(Treg) cells, follicular regulatory T(Tfr) cells, follicular helper T (Tfh) cells, and conventional T (con-T) cells. Correlation analysis was conducted to investigate the association of Helios-related subsets with clinical indicators. The ROC curve was used to explore the potential clinical value of Helios+ T cell subsets in the screening of patients with early LUAD. Fifteen of these patients were tracked after lung cancer resection and changes in Helios+ T cell subsets before and after treatment were analyzed. RESULTS The percentage and absolute number of Tregs were up-regulated in LUAD patients while Tfh and con-T cells expressing Helios were down-regulated. Absolute counts of Tfr and con-T cells and Helios expression in Tfr and Treg decreased significantly after resection. Helios+ Tfh and con-T were negatively correlated with certain tumor markers. Areas under the curve (AUCs) of percentages and absolute counts of Helios+ Tfh, Treg, Tfr and con-T cells to distinguish early LUAD from healthy individuals were 0.7277, 0.5697, 0.5718, 0.7210 (percentages), 0.7336, 0.7378, 0.5908 and 0.7445(absolute numbers), respectively. CONCLUSION Helios+ T cell subsets in peripheral blood of early-stage LUAD patients has changed significantly, which may be related to the pathogenesis of LUAD and could help for early diagnosis of LUAD.
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Affiliation(s)
- Yiming Zhao
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Ming Zhao
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Meng Li
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Xiancan Ma
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Mohan Zheng
- School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Yuying Nie
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Yaoyi Zhu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Jiaxin Ren
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Ainizati Hasimu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Zihang Yuan
- School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Qi Li
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Ayibaota Bahabayi
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Zhonghui Zhang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Xingyue Zeng
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Chen Liu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China.
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Bahabayi A, Zeng X, Tuerhanbayi B, Zhang Y, Hasimu A, Guo S, Liu T, Zheng M, Alimu X, Liu C. Changes in circulating TCF1- and GARP-associated regulatory T cell subsets reflect the clinical status of patients with chronic HBV infection. Med Microbiol Immunol 2022; 211:237-247. [PMID: 35953613 DOI: 10.1007/s00430-022-00748-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 07/23/2022] [Indexed: 10/15/2022]
Abstract
This study aimed to clarify the expression changes and clinical significance of regulatory T (Treg) cells and follicular regulatory T (TFR) cell subsets divided by glycoprotein A repetitions predominant protein (GARP) and T cell factor 1(TCF1) in peripheral blood of patients with chronic HBV infection. The peripheral blood of 26 chronic hepatitis B (CHB) patients, 27 inactive HBsAg carriers and 32 healthy controls were collected and GARP + percentages in Treg and TFR cells were analyzed by flow cytometry. In addition, Treg and TFR cell subsets sorted by CD62L and TCF1 were analyzed and compared. Correlation analyses were performed between Treg and TFR cell subpopulations and clinical parameters as well as cytokine concentrations, including IL-21, IL-10 and TGF-β1 in plasma. Circulating Treg and TFR levels were elevated in CHB patients. Moreover, GARP and TCF1 were up-regulated in circulating Treg and TFR cells of CHB patients. TCF1 + CD62L- Treg cells were increased while TCF1-CD62L + Treg cells were decreased in CHB patients. TCF1 + CD62L- and TCF1-CD62L- TFR cells were increased while TCF1 + CD62L + TFR cells were decreased in CHB patients. TCF1 + CD62L- Treg cells were positively correlated with HBV DNA, ALT and plasma IL-10, while TCF1 + CD62L + TFR cells were negatively correlated with HBV DNA, HBeAg, HBsAg, ALT, AST, T-BIL and positively correlated with plasma IL-21. Treg and TFR subsets sorted by TCF1, CD62L and GARP were changed in CHB patients. Changes in Treg and TFR functional subsets are associated with antiviral immunity in CHB patients.
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Affiliation(s)
- Ayibaota Bahabayi
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, 100044, China
| | - Xingyue Zeng
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, 100044, China
| | - Bulidierxin Tuerhanbayi
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, 100044, China
| | - Yangyang Zhang
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, 100044, China
| | - Ainizati Hasimu
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, 100044, China
| | - Siyu Guo
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, 100044, China
| | - Tianci Liu
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, 100044, China
| | - Mohan Zheng
- School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Xiayidan Alimu
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, 100044, China
| | - Chen Liu
- Department of Clinical Laboratory, Peking University People's Hospital, 11# Xizhimen South Street, Beijing, 100044, China.
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