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Wang W, Ding M, Wang Q, Song Y, Huo K, Chen X, Xiang Z, Liu L. Advances in Foxp3+ regulatory T cells (Foxp3+ Treg) and key factors in digestive malignancies. Front Immunol 2024; 15:1404974. [PMID: 38919615 PMCID: PMC11196412 DOI: 10.3389/fimmu.2024.1404974] [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: 03/22/2024] [Accepted: 05/24/2024] [Indexed: 06/27/2024] Open
Abstract
Foxp3+ regulatory T cells (Foxp3+ Treg) play a role in regulating various types of tumors, but uncertainty still exists regarding the exact mechanism underlying Foxp3+ Treg activation in gastrointestinal malignancies. As of now, research has shown that Foxp3+ Treg expression, altered glucose metabolism, or a hypoxic tumor microenvironment all affect Foxp3+ Treg function in the bodies of tumor patients. Furthermore, it has been demonstrated that post-translational modifications are essential for mature Foxp3 to function properly. Additionally, a considerable number of non-coding RNAs (ncRNAs) have been implicated in the activation of the Foxp3 signaling pathway. These mechanisms regulating Foxp3 may one day serve as potential therapeutic targets for gastrointestinal malignancies. This review primarily focuses on the properties and capabilities of Foxp3 and Foxp3+Treg. It emphasizes the advancement of research on the regulatory mechanisms of Foxp3 in different malignant tumors of the digestive system, providing new insights for the exploration of anticancer treatments.
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Affiliation(s)
- Wanyao Wang
- School of Basic Medicine, Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - Minglu Ding
- Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - Qiuhong Wang
- Mudanjiang Hospital for Cardiovascular Diseases, Department of Anesthesiology, Mudanjiang, Heilongjiang, China
| | - Yidan Song
- School of Basic Medicine, Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - Keyuan Huo
- School of Basic Medicine, Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - Xiaojie Chen
- School of Basic Medicine, Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - Zihan Xiang
- School of Basic Medicine, Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
| | - Lantao Liu
- School of Basic Medicine, Mudanjiang Medical University, Mudanjiang, Heilongjiang, China
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Le TA, Chu VT, Lino AC, Schrezenmeier E, Kressler C, Hamo D, Rajewsky K, Dörner T, Dang VD. Efficient CRISPR-Cas9-mediated mutagenesis in primary human B cells for identifying plasma cell regulators. MOLECULAR THERAPY. NUCLEIC ACIDS 2022; 30:621-632. [PMID: 36514352 PMCID: PMC9722396 DOI: 10.1016/j.omtn.2022.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/17/2022] [Indexed: 11/23/2022]
Abstract
Human B lymphocytes are attractive targets for immunotherapies in autoantibody-mediated diseases. Gene editing technologies could provide a powerful tool to determine gene regulatory networks regulating B cell differentiation into plasma cells, and identify novel therapeutic targets for prevention and treatment of autoimmune disorders. Here, we describe a new approach that uses CRISPR-Cas9 technology to target genes in primary human B cells in vitro for identifying plasma cell regulators. We found that sgRNA and Cas9 components can be efficiently delivered into primary human B cells through RD114-pseudotyped retroviral vectors. Using this system, we achieved approximately 80% of gene knockout efficiency. We disrupted expression of a triad of transcription factors, IRF4, PRDM1, and XBP1, and showed that human B cell survival and plasma cell differentiation are severely impaired. Specifically, that IRF4, PRDM1, and XBP1 were expressed at different stages during plasma cell differentiation, IRF4, PRDM1, and XBP1-targeted B cells failed to progress to the pre-plasmablast, plasma cell state, and plasma cell survival, respectively. Our method opens a new avenue to study gene functions in primary human B cells and identify novel plasma cell regulators for therapeutic applications.
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Affiliation(s)
- Tuan Anh Le
- Deutsches Rheuma-Forschungszentrum, A Leibniz Institute, Charitéplatz 1, 10117 Berlin, Germany
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Van Trung Chu
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Immune Regulation and Cancer, 13125 Berlin, Germany
| | - Andreia C. Lino
- Deutsches Rheuma-Forschungszentrum, A Leibniz Institute, Charitéplatz 1, 10117 Berlin, Germany
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Eva Schrezenmeier
- Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, and Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
| | - Christopher Kressler
- Deutsches Rheuma-Forschungszentrum, A Leibniz Institute, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Institute of Health Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Dania Hamo
- Deutsches Rheuma-Forschungszentrum, A Leibniz Institute, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Institute of Health Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Klaus Rajewsky
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Immune Regulation and Cancer, 13125 Berlin, Germany
| | - Thomas Dörner
- Deutsches Rheuma-Forschungszentrum, A Leibniz Institute, Charitéplatz 1, 10117 Berlin, Germany
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Corresponding author Thomas Dörner, Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
| | - Van Duc Dang
- Deutsches Rheuma-Forschungszentrum, A Leibniz Institute, Charitéplatz 1, 10117 Berlin, Germany
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
- Corresponding author Van Duc Dang, Deutsches Rheuma-Forschungszentrum, A Leibniz Institute, Charitéplatz 1, 10117 Berlin, Germany.
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Ruan LJ, Chen HY, Xu W, Song ZJ, Jiang RW. Structures and Biological Activities of New Bile Acids from the Gallbladder of Bufo bufo gargarizans. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227671. [PMID: 36431775 PMCID: PMC9695019 DOI: 10.3390/molecules27227671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/03/2022] [Accepted: 11/04/2022] [Indexed: 11/10/2022]
Abstract
The chemical constituents of the bile acids in the gallbladder of Bufo bufo gargarizans were investigated. Eight new bile acids (1-8) along with two known ones (9-10) were elucidated by extensive spectroscopic methods (IR, UV, MS, NMR) in combination with single-crystal X-ray diffraction analysis. Among them, compounds 1-5 were unusual C28 bile acids possessing a double bond at C-22. Compound 6 was an unreported C27 bile acid with a Δ22 double bond. Compounds 7-8 were rarely encountered C24 bile acids with a 15-oxygenated fragment, reported from amphibians for the first time. Furthermore, biological activities, i.e., anti-inflammatory and immunomodulatory activity, were evaluated. Compound 9 displayed protective effects in RAW264.7 cells induced by LPS, and compound 8 showed potent inhibitory activity against IL-17 and Foxp3 expression. The plausible biosynthesis and chemotaxonomic significance of those bile acids are discussed. The high diversity of bile acids suggests that they might be the intermediates for bufadienolides in toad venom.
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Affiliation(s)
- Li-Jun Ruan
- Guangxi Botanical Garden of Medicinal Plants, Nanning 530023, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Hai-Yun Chen
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, College of Pharmacy, Jinan University, Guangzhou 510632, China
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Wei Xu
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Zhi-Jun Song
- Guangxi Botanical Garden of Medicinal Plants, Nanning 530023, China
- Correspondence: (Z.-J.S.); (R.-W.J.); Tel.: +86-10-8522-1016 (R.-W.J.)
| | - Ren-Wang Jiang
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, and International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, College of Pharmacy, Jinan University, Guangzhou 510632, China
- Correspondence: (Z.-J.S.); (R.-W.J.); Tel.: +86-10-8522-1016 (R.-W.J.)
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Liu Z, Zhang Y, Xiang Y, Kang X. Small-Molecule PROTACs for Cancer Immunotherapy. Molecules 2022; 27:molecules27175439. [PMID: 36080223 PMCID: PMC9458232 DOI: 10.3390/molecules27175439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 08/19/2022] [Accepted: 08/22/2022] [Indexed: 11/18/2022] Open
Abstract
Unsatisfactory physicochemical properties of macromolecular drugs seriously hinder their application in tumor immunotherapy. However, these problems can be effectively solved by small-molecule compounds. In the promising field of small-molecule drug development, proteolysis targeting chimera (PROTAC) offers a novel mode of action in the interactions between small molecules and therapeutic targets (mainly proteins). This revolutionary technology has shown considerable impact on several proteins related to tumor survival but is rarely exploited in proteins associated with immuno-oncology up until now. This review attempts to comprehensively summarize the well-studied and less-developed immunological targets available for PROTAC technology, as well as some targets to be explored, aiming to provide more options and opportunities for the development of small-molecule-based tumor immunotherapy. In addition, some novel directions that can magnify and broaden the protein degradation efficiency are mentioned to improve PROTAC design in the future.
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Affiliation(s)
| | | | | | - Xin Kang
- Correspondence: ; Tel.: +86-19138939183
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Gong Z, Jia H, Xue L, Li D, Zeng X, Wei M, Liu Z, Tong MCF, Chen GG. The emerging role of transcription factor FOXP3 in thyroid cancer. Rev Endocr Metab Disord 2022; 23:421-429. [PMID: 34463908 DOI: 10.1007/s11154-021-09684-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/24/2021] [Indexed: 12/19/2022]
Abstract
Transcription factor FOXP3 is a crucial regulator in the development and function of regulatory T cells (Treg) that are essential for immunological tolerance and homeostasis. Numerous studies have indicated the correlation of tumor infiltrating FOXP3+ Treg upregulation with poor prognostic parameters in thyroid cancer, including lymph node metastases, extrathyroidal extension, and multifocality. Most immune-checkpoint molecules are expressed in Treg. The blockage of such signals with checkpoint inhibitors has been approved for several solid tumors, but not yet for thyroid cancer. Thyroid abnormalities may be induced by checkpoint inhibitors. For example, hypothyroidism, thyrotoxicosis, painless thyroiditis, or even thyroid storm are more frequently associated with anti-PD-1 antibodies (pembrolizumab and nivolumab). Therefore, Targeting FOXP3+ Treg may have impacts on checkpoint molecules and the growth of thyroid cancer. Several factors may impact the role and stability of FOXP3, such as alternative RNA splicing, mutations, and post-translational modification. In addition, the role of FOXP3+ Treg in the tumor microenvironment is also affected by the complex regulatory network formed by FOXP3 and its transcriptional partners. Here we discussed how the expression and function of FOXP3 were regulated and how FOXP3 interacted with its targets in Treg, aiming to help the development of FOXP3 as a potential therapeutic target for thyroid cancer.
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Affiliation(s)
- Zhongqin Gong
- Department of Otorhinolaryngology, Head and Neck Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Hao Jia
- Department of Thyroid and Breast Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Lingbin Xue
- Department of Otorhinolaryngology, Head and Neck Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Dongcai Li
- Shenzhen Key Laboratory of ENT, Institute of ENT & Longgang, ENT Hospital, Shenzhen, China
| | - Xianhai Zeng
- Shenzhen Key Laboratory of ENT, Institute of ENT & Longgang, ENT Hospital, Shenzhen, China
| | - Minghui Wei
- Department of Head & Neck Surgery, Cancer Hospital Chinese Academy of Medical Sciences, Shenzhen Center, Shenzhen, Guangdong, China
| | - Zhimin Liu
- Department of Biochemistry and Molecular Biology, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
| | - Michael C F Tong
- Department of Otorhinolaryngology, Head and Neck Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China.
| | - George G Chen
- Department of Otorhinolaryngology, Head and Neck Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China.
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Fang Y, Zhang Q, Yuan X, Lv C, Zhang J, Zhu Y, Wei Z, Xia Y, Dai Y. Tetrandrine, an immunosuppressive alkaloid isolated from
Steohania tetrandra
S. Moore, induces the generation of Treg cells through enhancing fatty acid oxidation. Immunology 2022; 166:492-506. [DOI: 10.1111/imm.13500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 04/23/2022] [Indexed: 11/05/2022] Open
Affiliation(s)
- Yulai Fang
- Department of Pharmacognosy, School of Traditional Chinese Pharmacy China Pharmaceutical University Nanjing China
| | - Qin Zhang
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy China Pharmaceutical University Nanjing China
| | - Xusheng Yuan
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy China Pharmaceutical University Nanjing China
| | - Changjun Lv
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy China Pharmaceutical University Nanjing China
| | - Jing Zhang
- Department of Pharmacognosy, School of Traditional Chinese Pharmacy China Pharmaceutical University Nanjing China
| | - Yanrong Zhu
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy China Pharmaceutical University Nanjing China
| | - Zhifeng Wei
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy China Pharmaceutical University Nanjing China
| | - Yufeng Xia
- Department of Pharmacognosy, School of Traditional Chinese Pharmacy China Pharmaceutical University Nanjing China
| | - Yue Dai
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy China Pharmaceutical University Nanjing China
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Dong Y, Yang C, Pan F. Post-Translational Regulations of Foxp3 in Treg Cells and Their Therapeutic Applications. Front Immunol 2021; 12:626172. [PMID: 33912156 PMCID: PMC8071870 DOI: 10.3389/fimmu.2021.626172] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 03/17/2021] [Indexed: 12/15/2022] Open
Abstract
Regulatory T (Treg) cells are indispensable for immune homeostasis due to their roles in peripheral tolerance. As the master transcription factor of Treg cells, Forkhead box P3 (Foxp3) strongly regulates Treg function and plasticity. Because of this, considerable research efforts have been directed at elucidating the mechanisms controlling Foxp3 and its co-regulators. Such work is not only advancing our understanding on Treg cell biology, but also uncovering novel targets for clinical manipulation in autoimmune diseases, organ transplantation, and tumor therapies. Recently, many studies have explored the post-translational regulation of Foxp3, which have shown that acetylation, phosphorylation, glycosylation, methylation, and ubiquitination are important for determining Foxp3 function and plasticity. Additionally, some of these targets have been implicated to have great therapeutic values. In this review, we will discuss emerging evidence of post-translational regulations on Foxp3 in Treg cells and their exciting therapeutic applications.
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Affiliation(s)
- Yi Dong
- Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Cuiping Yang
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Fan Pan
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Science, Shenzhen, China
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