1
|
Guo F, Kong W, Li D, Zhao G, Anwar M, Xia F, Zhang Y, Ma C, Ma X. M2-type tumor-associated macrophages upregulated PD-L1 expression in cervical cancer via the PI3K/AKT pathway. Eur J Med Res 2024; 29:357. [PMID: 38970071 PMCID: PMC11225336 DOI: 10.1186/s40001-024-01897-2] [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: 12/23/2023] [Accepted: 05/21/2024] [Indexed: 07/07/2024] Open
Abstract
BACKGROUND AND PURPOSE PD-1/PD-L1 inhibitors have become a promising therapy. However, the response rate is lower than 30% in patients with cervical cancer (CC), which is related to immunosuppressive components in tumor microenvironment (TME). Tumor-associated macrophages (TAMs), as one of the most important immune cells, are involved in the formation of tumor suppressive microenvironment. Therefore, it will provide a theoretical basis for curative effect improvement about the regulatory mechanism of TAMs on PD-L1 expression. METHODS The clinical data and pathological tissues of CC patients were collected, and the expressions of PD-L1, CD68 and CD163 were detected by immunohistochemistry. Bioinformatics was used to analyze the macrophage subtypes involved in PD-L1 regulation. A co-culture model was established to observe the effects of TAMs on the morphology, migration and invasion function of CC cells, and the regulatory mechanism of TAMs on PD-L1. RESULTS PD-L1 expression on tumor cells could predict the poor prognosis of patients. And there was a strong correlation between PD-L1 expression with CD163+TAMs infiltration. Similarly, PD-L1 expression was associated with M1/M2-type TAMs infiltration in bioinformatics analysis. The results of cell co-culture showed that M1/M2-type TAMs could upregulate PD-L1 expression, especially M2-type TAMs may elevate the PD-L1 expression via PI3K/AKT pathway. Meanwhile, M1/M2-type TAMs can affect the morphological changes, and enhance migration and invasion abilities of CC cells. CONCLUSIONS PD-L1 expression in tumor cells can be used as a prognostic factor and is closely related to CD163+TAMs infiltration. In addition, M2-type TAMs can upregulate PD-L1 expression in CC cells through PI3K/AKT pathway, enhance the migration and invasion capabilities, and affect the tumor progression.
Collapse
Affiliation(s)
- Fan Guo
- Department of Medical Laboratory Center, Tumor Hospital Affiliated to Xinjiang Medical University, State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, No 789 Suzhou Road, Urumqi, 830011, Xinjiang, China
- Postdoctoral Research Workstation of Tumor Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Weina Kong
- Department of Medical Laboratory Center, Tumor Hospital Affiliated to Xinjiang Medical University, State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, No 789 Suzhou Road, Urumqi, 830011, Xinjiang, China
| | - Dewei Li
- Center of Respiratory and Critical Care Medicine, The People's Hospital of the Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China
| | - Gang Zhao
- Department of Blood Transfusion, Affiliated Traditional Chinese Medicine Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Miyessar Anwar
- Department of Medical Laboratory Center, Tumor Hospital Affiliated to Xinjiang Medical University, State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, No 789 Suzhou Road, Urumqi, 830011, Xinjiang, China
| | - Feifei Xia
- Department of Medical Laboratory Center, Tumor Hospital Affiliated to Xinjiang Medical University, State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, No 789 Suzhou Road, Urumqi, 830011, Xinjiang, China
| | - Yuanming Zhang
- Tumor Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Cailing Ma
- Department of Gynecology, The First Affiliated Hospital of Xinjiang Medical University, State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, 137 Li Yu Shan South Road, Urumqi, 830054, Xinjiang, China.
| | - Xiumin Ma
- Department of Medical Laboratory Center, Tumor Hospital Affiliated to Xinjiang Medical University, State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, No 789 Suzhou Road, Urumqi, 830011, Xinjiang, China.
| |
Collapse
|
2
|
Zhu J, Lu H, Wang K, Liu B, Yan J. Tertiary lymphoid structures in head and neck squamous cell carcinoma. Transl Oncol 2024; 44:101949. [PMID: 38583352 DOI: 10.1016/j.tranon.2024.101949] [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: 01/03/2024] [Revised: 02/08/2024] [Accepted: 03/26/2024] [Indexed: 04/09/2024] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is the sixth most common malignancy worldwide. Smoking, drinking, and human papillomavirus (HPV) infection are the main risk factors. Early-stage patients can benefit from radical surgery, chemotherapy, and radiotherapy, but the prognosis of locally advanced, recurrent, or metastatic patients is poor. Programmed cell death receptor 1 (PD-1) inhibitor significantly prolongs the survival of these patients, but only about 20 % of the population can benefit significantly. Exploring effective predictive indicators of immunotherapy efficacy and new therapeutic targets is necessary. Tertiary lymphoid structure (TLS) is an ectopic lymphoid organ formed in non-lymphoid tissues, which usually occurs in chronic inflammation including autoimmune diseases, infectious diseases, and tumors. The structure and function of TLS are similar to those of secondary lymphoid organs. The existence of TLS is closely related to the favorable prognosis and immune response of patients. This article will review the formation, prognosis, and predictive value of TLS as well as inducing TLS neogenesis in HNSCC.
Collapse
Affiliation(s)
- Jing Zhu
- Department of Oncology, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, PR China
| | - Hui Lu
- Department of Oncology, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, PR China
| | - Kongcheng Wang
- Department of Oncology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, PR China
| | - Baorui Liu
- Department of Oncology, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, PR China; Department of Oncology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, PR China.
| | - Jing Yan
- Department of Oncology, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, PR China; Department of Oncology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, PR China.
| |
Collapse
|
3
|
Xiong G, Shan J, Chong Q, Cui Y. Tertiary lymphoid structures associated with enhanced anti-tumor immunity and favorable prognosis in cervical squamous carcinoma. Aging (Albany NY) 2024; 16:6898-6920. [PMID: 38709170 PMCID: PMC11087108 DOI: 10.18632/aging.205733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 02/13/2024] [Indexed: 05/07/2024]
Abstract
BACKGROUND Cervical squamous carcinoma (CESC) is the main subtype of cervical cancer. Unfortunately, there are presently no effective treatment options for advanced and recurrent CESC. Tertiary lymphoid structures (TLSs) are clusters of lymphoid cells that resemble secondary lymphoid organs; nevertheless, there is no summary of the clinical importance of TLS in CESC. METHODS A large set of transcriptomic and single-cell RNA-sequencing (scRNA-seq) datasets were used to analyze the pattern of TLS and its immuno-correlations in CESC. Additionally, an independent in-house cohort was collected to validate the correlation between TLS and TME features. RESULTS In the current study, we found that the presence of TLS could predict better prognosis in CESC and was correlated with the activation of immunological signaling pathways and enrichment of immune cell subpopulations. In addition, TLS was associated with reduced proliferation activity in tumor cells, indicating the negative correlation between TLS and the degree of malignancy. Last but not least, in two independent immunotherapy cohorts, tumors with the presence of TLS were more sensitive to immunotherapy. CONCLUSION Overall, TLS is related to an inflamed TME and identified immune-hot tumors, which could be an indicator for the identification of immunological features in CESC.
Collapse
Affiliation(s)
- Guohai Xiong
- Department of Gynaecology, Yancheng Third People’s Hospital, Yancheng 224008, China
- Department of Gynaecology, The Yancheng School of Clinical Medicine of Nanjing Medical University, Yancheng 224008, China
| | - Jinmei Shan
- Department of Gynaecology, Yancheng Third People’s Hospital, Yancheng 224008, China
- Department of Gynaecology, The Yancheng School of Clinical Medicine of Nanjing Medical University, Yancheng 224008, China
| | - Qingguo Chong
- Department of Gynaecology, Yancheng Third People’s Hospital, Yancheng 224008, China
- Department of Gynaecology, The Yancheng School of Clinical Medicine of Nanjing Medical University, Yancheng 224008, China
| | - Yueqing Cui
- Department of Gynaecology, Yancheng Third People’s Hospital, Yancheng 224008, China
- Department of Gynaecology, The Yancheng School of Clinical Medicine of Nanjing Medical University, Yancheng 224008, China
| |
Collapse
|
4
|
Bălan L, Cimpean AM, Secosan C, Sorop VB, Balan C, Moldovan M, Melnic E, Balulescu L, Brasoveanu S, Pirtea L. Heterogeneity of Cervical Cancer-Associated Tertiary Lymphoid Structures (TLSs) and Their Specific Interrelation With Clinicopathological Parameters. Cureus 2024; 16:e59077. [PMID: 38694662 PMCID: PMC11062074 DOI: 10.7759/cureus.59077] [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] [Accepted: 04/26/2024] [Indexed: 05/04/2024] Open
Abstract
OBJECTIVE The study investigates morphological variants of tertiary lymphoid structures (TLSs) in relation to cervical cancer development, from intraepithelial neoplastic lesions to invasive carcinomas with locoregional lymph node metastases. MATERIALS AND METHODS This retrospective analysis comprised 100 cervical cancer cases who had had total hysterectomy with lymphadenectomy in the Obstetrics and Gynecology Clinic of the Municipal Emergency Clinical Hospital of Timisoara, Romania, from 2020 to 2023. Bilateral ilio obturator lymphadenectomy and total hysterectomy were used to acquire biopsy samples. The presence of germinal centers, other stromal structures, TLS density, topography relative to the tumor lesion, and malignant cell islets are used to evaluate and classify TLS. RESULTS We first globally evaluated the total number of TLSs (TLS.T). We observed topographically two places in the cervical stroma: TLS immediately peritumorally positioned and TLS away from tumor lesions. Invasive carcinomas have bigger superficial TLSs with a well-defined germinal center. As they approached the tumor, TLSs increased in size and density. We also detected a special type of TLS associated with nerve fibers, which we named tertiary lymphoid structures associated with nerves (TLS.N). The total number of TLSs did not correlate with age, but 85.71% of patients presenting TLS.N were aged between 59 and 72 years old. Our findings showed a strong correlation between age (postmenopausal, p = 0.005) and TLS-N presence. Similarly, TLS parameters evolved with tumor differentiation. Only in the TLS.N group did the tumoral grading (G) 3 correlate with TLS (p = 0.041), while TLS.T did not correlate with G. All TLS.N. patients, except one, had lymphovascular invasion and massive histiocytosis. On the first point, TLS.N correlated with lymphovascular invasion (p = 0.032). CONCLUSION Tertiary lymphoid structures associated with nerves have not been previously reported in cervical cancer, and their effects on prognosis and aggression are unknown. There was a substantial association between TLSs.N presence and age over 60, suggesting it is exclusive to menopausal women. They were also substantially connected with lymphovascular invasion and G3, suggesting they may be a poor cervical cancer prognostic factor.
Collapse
Affiliation(s)
- Lavinia Bălan
- Department of Obstetrics and Gynecology, Victor Babes University of Medicine and Pharmacy, Timisoara, ROU
- Department of Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, ROU
| | - Anca Maria Cimpean
- Department of Microscopic Morphology/Histology, Victor Babes University of Medicine and Pharmacy, Timisoara, ROU
- Center of Expertise for Rare Vascular Disease in Children, Louis Turcanu Children Hospital, Timisoara, ROU
| | - Cristina Secosan
- Department of Obstetrics and Gynecology, Victor Babes University of Medicine and Pharmacy, Timisoara, ROU
| | - Virgiliu-Bogdan Sorop
- Department of Obstetrics and Gynecology, Victor Babes University of Medicine and Pharmacy, Timisoara, ROU
| | - Catalin Balan
- Department of Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, ROU
- Department of Cell and Molecular Biology, Victor Babes University of Medicine and Pharmacy, Timisoara, ROU
| | - Mihaela Moldovan
- Department of Pathology, Municipal Emergency Hospital, Timisoara, ROU
| | - Eugen Melnic
- Department of Pathology, Nicolae Testemitanu State University of Medicine and Pharmacy, Chisinau, MDA
| | - Ligia Balulescu
- Department of Obstetrics and Gynecology, Victor Babes University of Medicine and Pharmacy, Timisoara, ROU
- Department of Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, ROU
| | - Simona Brasoveanu
- Department of Obstetrics and Gynecology, Victor Babes University of Medicine and Pharmacy, Timisoara, ROU
- Department of Medicine, Victor Babes University of Medicine and Pharmacy, Timisoara, ROU
| | - Laurentiu Pirtea
- Department of Obstetrics and Gynecology, Victor Babes University of Medicine and Pharmacy, Timisoara, ROU
| |
Collapse
|
5
|
Xiaoxu D, Min X, Chengcheng C. Immature central tumor tertiary lymphoid structures are associated with better prognosis in non-small cell lung cancer. BMC Pulm Med 2024; 24:155. [PMID: 38532454 DOI: 10.1186/s12890-024-02970-6] [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: 10/03/2023] [Accepted: 03/18/2024] [Indexed: 03/28/2024] Open
Abstract
BACKGROUND & AIMS Tertiary lymphoid structures (TLSs) are predictive biomarkers of favorable clinical outcomes and immunotherapy response in several solid malignancies, including non-small cell lung cancer (NSCLC). However, the relationship between TLSs and NSCLC prognosis has not been eludicated from the aspects of location, density, and maturity. This study aimed to investigate the clinicopathological and prognostic significance of TLSs in NSCLC. METHODS A collection of 151 resected pulmonary nodules in patients with NSCLC was retrospectively analyzed. Two experienced pathologists reviewed hematoxylin-eosin (H&E) slides and assessed TLS scores at different anatomic subregions. Then, we analyzed their correlation with clinicopathologic parameters and CD8 staining intensity and assessed multiple clinicopathological factors affecting patient prognosis. RESULTS CD8 expression was correlated with total (TLS-CT) (P = 0.000), aggregates (Agg) (TLS-CT) (P = 0.001), follicles (FOL)-I (TLS-CT) (P = 0.025), and TLS(overall) (P = 0.013). TLS scores in the central tumor (CT) and invasion margin (IM) areas were negatively correlated with distant metastasis and Union for International Cancer Control (UICC) stage in NSCLC patients, while TLS score in the CT area was positively correlated with CD8 expression. TLS (overall), Agg (TLS-CT), and FOL-I (TLS-CT) were positively correlated with distant metastasis, UICC stage, and CD8 expression in NSCLC patients. Agg (TLS-IM) was positively correlated with distant metastasis and UICC stage. FOL-I (TLS-IM) was positively correlated with UICC stage. FOL-II (TLS-IM) was positively correlated with distant metastasis (P < 0.05). Multivariate Cox regression analysis showed that unfavorable independent prognostic factors were associated with metastasis status and UICC stage. Independent prognostic factors with protective effects included Agg (TLS-CT), FOL-I (TLS-CT), total (TLS-CT), and overall TLS (P < 0.05). CONCLUSION Histological score assessment of H&E sections of Agg (TLS-CT), FOL-I (TLS-CT), total (TLS-CT), and overall TLS levels in NSCLC has prognostic value.
Collapse
Affiliation(s)
- Deng Xiaoxu
- Pathology Department, Shengjing Hospital of China Medical University, Shenyang Liaoning, China
| | - Xu Min
- Department of Thoracic Surgery, Liaoning Cancer Hospital&Institution, Shenyang Liaoning, China.
| | - Cao Chengcheng
- Pathology Department, Shengjing Hospital of China Medical University, Shenyang Liaoning, China
| |
Collapse
|
6
|
Zhang K, Xie X, Zheng SL, Deng YR, Liao D, Yan HC, Kang X, Jiang HP, Guo SQ. Tertiary lymphoid structures in gynecological cancers: prognostic role, methods for evaluating, antitumor immunity, and induction for therapy. Front Oncol 2023; 13:1276907. [PMID: 38023214 PMCID: PMC10667730 DOI: 10.3389/fonc.2023.1276907] [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: 08/13/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023] Open
Abstract
Tertiary lymphoid structures (TLSs), referred to as tertiary lymphoid organs and lymphoid tissue neogenesis, are aggregates of immune cells that occur in nonlymphoid tissues. In recent years, it has been found that TLSs within the tumor microenvironment have been associated with local adaptive immune immunity against cancer and favorable prognosis in several human solid tumors, including gynecological cancers. The issue of the prognosis of gynecological cancers, including endometrial, cervical, and ovarian cancer, is an enormous challenge that many clinical doctors and researchers are now facing. Concerning the predictive prognostic role of TLSs, effective evaluation, and quantification of TLSs in human tissues may be used to assist gynecologists in assessing the clinical outcome of gynecological cancer patients. This review summarizes the current knowledge of TLSs in gynecological cancers, mainly focusing on the potential mechanism of TLS neogenesis, methods for evaluating TLSs, their prognostic value, and their role in antitumor immune immunity. This review also discusses the new therapeutic methods currently being explored in gynecological cancers to induce the formation of TLSs.
Collapse
Affiliation(s)
- Ke Zhang
- Department of Gynecology, Pingxiang People's Hospital, Pingxiang, Jiangxi, China
| | - Xiao Xie
- Department of Urology, Pingxiang People's Hospital, Pingxiang, Jiangxi, China
| | - Shuang-Lin Zheng
- Department of Gynecology, The Third Hospital of Mianyang, Mianyang, Sichuan, China
| | - Yuan-Run Deng
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, China
- The Third Clinical College, Southern Medical University, Guangzhou, Guangdong, China
| | - Dan Liao
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, China
- The Third Clinical College, Southern Medical University, Guangzhou, Guangdong, China
| | - Hai-Chen Yan
- Department of Urology, Pingxiang People's Hospital, Pingxiang, Jiangxi, China
| | - Xi Kang
- Department of Urology, Pingxiang People's Hospital, Pingxiang, Jiangxi, China
| | - Hui-Ping Jiang
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, China
- The Third Clinical College, Southern Medical University, Guangzhou, Guangdong, China
| | - Sui-Qun Guo
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, China
- The Third Clinical College, Southern Medical University, Guangzhou, Guangdong, China
| |
Collapse
|
7
|
Houel A, Foloppe J, Dieu-Nosjean MC. Harnessing the power of oncolytic virotherapy and tertiary lymphoid structures to amplify antitumor immune responses in cancer patients. Semin Immunol 2023; 69:101796. [PMID: 37356421 DOI: 10.1016/j.smim.2023.101796] [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: 02/25/2023] [Revised: 06/14/2023] [Accepted: 06/14/2023] [Indexed: 06/27/2023]
Abstract
Tertiary lymphoid structures (TLS) are ectopic aggregates of immune cells that develop in non-lymphoid tissues under persistent inflammation. Since their presence has been associated with a better prognosis in cancer patients, modulating TLS formation is being part of new challenges in immunotherapy. Although mechanisms underlying TLS genesis are still not fully understood, different strategies have been developed in preclinical models to induce their formation and ultimately enhance antitumor responses. Herein, we will discuss a new approach that would consist in using oncolytic viruses (OV). These viruses have the unique feature to preferentially infect, replicate in and kill cancer cells. Their immunoadjuvant property, their use as a vector of therapeutic molecules and their selectivity for cancer cells, make them an attractive strategy to induce TLS in the tumor microenvironment. This review will examine the current knowledge about TLS neogenesis, approaches for inducing them, and relevance of using OV for this purpose, especially in combination with immunotherapy such as immune checkpoint blockade.
Collapse
Affiliation(s)
- Ana Houel
- UMRS1135 Sorbonne Université, Paris, France; Inserm U1135, Paris, France; Team " Immune Microenvironment and Immunotherapy ", Centre of Immunology and Microbial Infections (Cimi), Faculté de Médecine Sorbonne Université, Paris, France; Transgene, Illkirch-Graffenstaden, France
| | | | - Marie-Caroline Dieu-Nosjean
- UMRS1135 Sorbonne Université, Paris, France; Inserm U1135, Paris, France; Team " Immune Microenvironment and Immunotherapy ", Centre of Immunology and Microbial Infections (Cimi), Faculté de Médecine Sorbonne Université, Paris, France.
| |
Collapse
|
8
|
Guo H, Bossila EA, Ma X, Zhao C, Zhao Y. Dual Immune Regulatory Roles of Interleukin-33 in Pathological Conditions. Cells 2022; 11:cells11203237. [PMID: 36291105 PMCID: PMC9600220 DOI: 10.3390/cells11203237] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/07/2022] [Accepted: 10/11/2022] [Indexed: 11/20/2022] Open
Abstract
Interleukin-33 (IL-33), a member of the IL-1 cytokine family and a multifunctional cytokine, plays critical roles in maintaining host homeostasis and in pathological conditions, such as allergy, infectious diseases, and cancer, by acting on multiple types of immune cells and promoting type 1 and 2 immune responses. IL-33 is rapidly released by immune and non-immune cells upon stimulation by stress, acting as an “alarmin” by binding to its receptor, suppression of tumorigenicity 2 (ST2), to trigger downstream signaling pathways and activate inflammatory and immune responses. It has been recognized that IL-33 displays dual-functioning immune regulatory effects in many diseases and has both pro- and anti-tumorigenic effects, likely depending on its primary target cells, IL-33/sST2 expression levels, cellular context, and the cytokine microenvironment. Herein, we summarize our current understanding of the biological functions of IL-33 and its roles in the pathogenesis of various conditions, including inflammatory and autoimmune diseases, infections, cancers, and cases of organ transplantation. We emphasize the nature of context-dependent dual immune regulatory functions of IL-33 in many cells and diseases and review systemic studies to understand the distinct roles of IL-33 in different cells, which is essential to the development of more effective diagnoses and therapeutic approaches for IL-33-related diseases.
Collapse
Affiliation(s)
- Han Guo
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 101499, China
| | - Elhusseny A. Bossila
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 101499, China
- Biotechnology Department, Faculty of Agriculture Al-Azhar University, Cairo 11311, Egypt
| | - Xinran Ma
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 101499, China
| | - Chenxu Zhao
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 101499, China
| | - Yong Zhao
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 101499, China
- Beijing Institute for Stem Cell and Regeneration, Beijing 100101, China
- Correspondence: ; Tel.: +86-10-64807302; Fax: +86-10-64807313
| |
Collapse
|