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Cheng C, Liang S, Yue K, Wu N, Li Z, Dong T, Dong X, Ling M, Jiang Q, Liu J, Huang XJ. STAT5 is essential for inducing the suppressive subset and attenuate cytotoxicity of Vδ2 + T cells in acute myeloid leukemia. Cancer Lett 2024; 587:216730. [PMID: 38360140 DOI: 10.1016/j.canlet.2024.216730] [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: 11/30/2023] [Revised: 02/04/2024] [Accepted: 02/10/2024] [Indexed: 02/17/2024]
Abstract
Under the sustained exposure to tumor microenvironment, effector lymphocytes may transform into the suppressive populations. γδ T cells are recognized as a crucial mediator and effector of immune surveillance and thereby a promising candidate for anti-tumor immunotherapy. Emerging clinical studies implicate that some γδ T subsets play an important role in promoting tumor progression. Our previous study identified an abnormal Vδ2+ T cells subset with regulatory features (Reg-Vδ2) in the patients with newly diagnosed acute myeloid leukemia (AML), and demonstrated that Reg-Vδ2 cells significantly suppressed the anti-AML effects of effector Vδ2 cells (Eff-Vδ2). The molecular mechanism underlying the subset transformation of Vδ2 cells remains unclear. Here, we found that the expression and activity of STAT5 were significantly induced in Reg-Vδ2 cells compared with Eff-Vδ2 cells, which was consistent with the differences found in primary Vδ2 cells between AML patients and healthy donors. In-vitro experiments further indicated that STAT5 was required for the induction of Reg-Vδ2 cells. The combined immunophenotypical and functional assays showed that blockage of STAT5 alleviated the immunosuppressive effect of Reg-Vδ2 cells on Eff-Vδ2 cells and enhanced the anti-AML capacity of Vδ2 cells from health donors and AML patients. Collectively, these results suggest that STAT5 acts as a critical regulator in the transformation of effector Vδ2 cells into a subset with immunosuppressive characteristics, providing a potential target for the improvement the efficacy of γδ T cells-based immunotherapy to treat AML and other hematologic malignancies.
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Affiliation(s)
- Cong Cheng
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China; Research Unit of Key Technique for Diagnosis and Treatments of Hematologic Malignancies, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College (2019RU029), Beijing, China
| | - Shuang Liang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China; Department of Clinical Laboratory, Beijing Jishuitan Hospital, Capital Medical University, Beijing, 100035, China
| | - Keli Yue
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China; Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Ning Wu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Zongru Li
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Tianhui Dong
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Xinyu Dong
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Min Ling
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China; Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Qian Jiang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Jiangying Liu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China.
| | - Xiao-Jun Huang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China; Research Unit of Key Technique for Diagnosis and Treatments of Hematologic Malignancies, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College (2019RU029), Beijing, China; Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China.
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Wang W, Lopez McDonald MC, Hariprasad R, Hamilton T, Frank DA. Oncogenic STAT Transcription Factors as Targets for Cancer Therapy: Innovative Strategies and Clinical Translation. Cancers (Basel) 2024; 16:1387. [PMID: 38611065 PMCID: PMC11011165 DOI: 10.3390/cancers16071387] [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: 02/25/2024] [Revised: 03/25/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024] Open
Abstract
Despite advances in our understanding of molecular aspects of oncogenesis, cancer remains a leading cause of death. The malignant behavior of a cancer cell is driven by the inappropriate activation of transcription factors. In particular, signal transducers and activators of transcription (STATs), which regulate many critical cellular processes such as proliferation, apoptosis, and differentiation, are frequently activated inappropriately in a wide spectrum of human cancers. Multiple signaling pathways converge on the STATs, highlighting their importance in the development and progression of oncogenic diseases. STAT3 and STAT5 are two members of the STAT protein family that are the most frequently activated in cancers and can drive cancer pathogenesis directly. The development of inhibitors targeting STAT3 and STAT5 has been the subject of intense investigations in the last decade, although effective treatment options remain limited. In this review, we investigate the specific roles of STAT3 and STAT5 in normal physiology and cancer biology, discuss the opportunities and challenges in pharmacologically targeting STAT proteins and their upstream activators, and offer insights into novel therapeutic strategies to identify STAT inhibitors as cancer therapeutics.
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Affiliation(s)
- Weiyuan Wang
- Department of Hematology and Medical Oncology, Winship Cancer Institute, School of Medicine, Emory University, Atlanta, GA 30322, USA; (W.W.); (M.C.L.M.); (T.H.)
| | - Melanie Cristina Lopez McDonald
- Department of Hematology and Medical Oncology, Winship Cancer Institute, School of Medicine, Emory University, Atlanta, GA 30322, USA; (W.W.); (M.C.L.M.); (T.H.)
| | | | - Tiara Hamilton
- Department of Hematology and Medical Oncology, Winship Cancer Institute, School of Medicine, Emory University, Atlanta, GA 30322, USA; (W.W.); (M.C.L.M.); (T.H.)
| | - David A. Frank
- Department of Hematology and Medical Oncology, Winship Cancer Institute, School of Medicine, Emory University, Atlanta, GA 30322, USA; (W.W.); (M.C.L.M.); (T.H.)
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Zhu Y, Li X, Wen D, Huang Z, Yan J, Zhang Z, Wang Y, Guo Z. Remote Ischemic Post-conditioning Reduces Cognitive Impairment in Rats Following Subarachnoid Hemorrhage: Possible Involvement in STAT3/ STAT5 Phosphorylation and Th17/Treg Cell Homeostasis. Transl Stroke Res 2024:10.1007/s12975-024-01235-y. [PMID: 38356020 DOI: 10.1007/s12975-024-01235-y] [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: 12/10/2023] [Revised: 01/12/2024] [Accepted: 02/06/2024] [Indexed: 02/16/2024]
Abstract
The inflammatory response following subarachnoid hemorrhage (SAH) may lead to Early Brain Injury and subsequently contribute to poor prognosis such as cognitive impairment in patients. Currently, there is a lack of effective strategies for SAH to ameliorate inflammation and improve cognitive impairment in clinical. This study aims to examine the inhibitory impact of remote ischemic post-conditioning (RIPostC) on the body's inflammatory response by regulating Th17/Treg cell homeostasis after SAH. The ultimate goal is to search for potential early treatment targets for SAH. The rat SAH models were made by intravascular puncture of the internal carotid artery. The intervention of RIPostC was administered for three consecutive days immediately after successful modeling. Behavioral experiments including the Morris water maze and Y-maze tests were conducted to assess cognitive functions such as spatial memory, working memory, and learning abilities 2 weeks after successful modeling. The ratio of Th17 cells and Treg cells in the blood was detected using flow cytometry. Immunofluorescence was used to observe the infiltration of neutrophils into the brain. Signal transducers and activators of transcription 5 (STAT5) and signal transducers and activators of transcription 3 (STAT3) phosphorylation levels, receptor-related orphan receptor gamma-t (RORγt), and forkhead box protein P3 (Foxp3) levels were detected by Western blot. The levels of anti-inflammatory factors (IL-2, IL-10, IL-5, etc.) and pro-inflammatory factors (IL-6, IL-17, IL-18, TNF-α, IL-14, etc.) in blood were detected using Luminex Liquid Suspension Chip Assay. RIPostC significantly improved the cognitive impairment caused by SAH in rats. The results showed that infiltration of Th17 cells and neutrophils into brain tissue increased after SAH, leading to the release of pro-inflammatory factors (IL-6, IL-17, IL-18, and TNF-α). This response can be inhibited by RIPostC. Additionally, RIPostC facilitates the transfer of Treg from blood to the brain and triggers the release of anti-inflammatory (IL-2, IL-10, and IL-5) factors to suppress the inflammation following SAH. Finally, it was found that RIPostC increased the phosphorylation of STAT5 while decreasing the phosphorylation of STAT3. RIPostC reduces inflammation after SAH by partially balancing Th17/Treg cell homeostasis, which may be related to downregulation of STAT3 and upregulation of STAT5 phosphorylation, which ultimately alleviates cognitive impairment in rats. Targeting Th17/Treg cell homeostasis may be a promising strategy for early SAH treatment.
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Affiliation(s)
- Yajun Zhu
- The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China
| | - Xiaoguo Li
- The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China
| | - DaoChen Wen
- The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China
| | - Zichao Huang
- The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China
| | - Jin Yan
- The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China
| | - Zhaosi Zhang
- The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China
| | - Yingwen Wang
- The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China
| | - Zongduo Guo
- The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuanjiagang, Yuzhong District, Chongqing, 400016, China.
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Liu C, Chen H, Tao X, Li C, Li A, Wu W. ALKBH5 protects against stroke by reducing endoplasmic reticulum stress-dependent inflammation injury via the STAT5/PERK/EIF2α/CHOP signaling pathway in an m 6A-YTHDF1-dependent manner. Exp Neurol 2024; 372:114629. [PMID: 38056583 DOI: 10.1016/j.expneurol.2023.114629] [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: 07/30/2023] [Revised: 10/31/2023] [Accepted: 11/27/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Endoplasmic reticulum (ER) stress causes neuroinflammation and neuronal apoptosis during ischemic stroke progression. This study has investigated the role of ALKBH5 in ER stress during ischemic stroke progression. METHODS In vivo and in vitro models of ischemic stroke were established by middle cerebral artery occlusion (MCAO) and OGD/R treatment, respectively. Cerebral infarct size was detected using triphenyltetrazolium chloride staining (TTC), and pathological changes were examined using histological staining. The levels of inflammatory factors were analyzed using Enzyme-linked immunosorbent assay. Cell counting kit-8 assay and flow cytometry were used to measure cell viability and apoptosis, respectively. The global m6A level was detected using the commercial kit, and STAT5 mRNA m6A level was determined using methylated RNA binding protein immunoprecipitation (Me-RIP). ALKBH5, YTHDF1, and STAT5 interactions were analyzed using RIP and RNA pull-down assays. RESULTS ALKBH5 was upregulated in MCAO animals and OGD/R cell models. ALKBH5 knockdown exacerbated ER stress, neuroinflammation, and neuronal apoptosis in brain tissues and neuronal cells. ALKBH5 inhibited STAT5 mRNA stability and expression in an m6A-YTHDF1-dependent manner. STAT5 promoted ER stress by activating the PERK/eIF2/CHOP signaling pathway. Furthermore, STAT5 knockdown reversed the effects of ALKBH5 knockdown on OGD/R-induced ER stress and neuroinflammation in HT22 cells. CONCLUSION ALKBH5 knockdown exacerbated ischemic stroke by increasing ER stress-dependent neuroinflammation and neuronal apoptosis via the STAT5/PERK/EIF2α/CHOP signaling pathway in an m6A-YTHDF1-dependent manner.
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Affiliation(s)
- Chujuan Liu
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong Province, PR China; Department of Rehabilitation, Hunan Provincial People's Hospital, The First Affifiliated Hospital of Hunan Normal University, Changsha 410006, Hunan Province, PR China
| | - Hui Chen
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong Province, PR China
| | - Xi Tao
- Department of Rehabilitation, Hunan Provincial People's Hospital, The First Affifiliated Hospital of Hunan Normal University, Changsha 410006, Hunan Province, PR China
| | - Chen Li
- Department of Rehabilitation, Hunan Provincial People's Hospital, The First Affifiliated Hospital of Hunan Normal University, Changsha 410006, Hunan Province, PR China
| | - Aiping Li
- Department of Neurological Neurology, Hunan Provincial People's Hospital, The First Affifiliated Hospital of Hunan Normal University, Changsha 410006, Hunan Province, PR China
| | - Wen Wu
- Department of Rehabilitation, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong Province, PR China.
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Sun Y, Wang Y, Wang L, Zou M, Peng X. STAT5-mediated transcription of miR-33-5p in Mycoplasma gallisepticum-infected DF-1 cells. Avian Pathol 2024; 53:68-79. [PMID: 37855868 DOI: 10.1080/03079457.2023.2272617] [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: 09/02/2022] [Accepted: 10/15/2023] [Indexed: 10/20/2023]
Abstract
RESEARCH HIGHLIGHTS MG-HS regulates the expression of transcription factor STAT5.Transcription factor STAT5 can target miR-33-5p promoter element.MG-influenced STAT5 regulates miR-33-5p and its target gene expression.
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Affiliation(s)
- Yingfei Sun
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Yingjie Wang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Lulu Wang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Mengyun Zou
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - Xiuli Peng
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Technology and College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, People's Republic of China
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6
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Xu G, Zeng Z, Zhang Z, Zhang X, Wang M, Xiao Q, Li J, Xie X, He S, Fu H, Liu Y, Yang Z, Chen Y, Shi J, Wang B, Qiu H, Zhou Q, Liu Y, Chen S. The novel TERF2::PDGFRB fusion gene enhances tumorigenesis via PDGFRB/ STAT5 signalling pathways and sensitivity to TKI in ph-like ALL. J Cell Mol Med 2024; 28:e18114. [PMID: 38323741 PMCID: PMC10844707 DOI: 10.1111/jcmm.18114] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/26/2023] [Accepted: 12/27/2023] [Indexed: 02/08/2024] Open
Abstract
Patients with Philadelphia chromosome-like acute lymphoblastic leukaemia (Ph-like ALL) often face a grim prognosis, with PDGFRB gene fusions being commonly detected in this subgroup. Our study has unveiled a newfound fusion gene, TERF2::PDGFRB, and we have found that patients carrying this fusion gene exhibit sensitivity to dasatinib. Ba/F3 cells harbouring the TERF2::PDGFRB fusion display IL-3-independent cell proliferation through activation of the p-PDGFRB and p-STAT5 signalling pathways. These cells exhibit reduced apoptosis and demonstrate sensitivity to imatinib in vitro. When transfused into mice, Ba/F3 cells with the TERF2::PDGFRB fusion gene induce tumorigenesis and a shortened lifespan in cell-derived graft models, but this outcome can be improved with imatinib treatment. In summary, we have identified the novel TERF2::PDGFRB fusion gene, which exhibits oncogenic potential both in vitro and in vivo, making it a potential therapeutic target for tyrosine kinase inhibitors (TKIs).
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Affiliation(s)
- Guo‐fa Xu
- Department of HematologyChongqing University FuLing Hospital, Chongqing, Central Laboratory, Chongqing University FuLing HospitalChongqingChina
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Collaborative Innovation Center of Hematology, Institute of Blood and Marrow TransplantationThe First Affiliated Hospital of Soochow University, Soochow UniversitySuzhouChina
- Department of Hematology‐OncologyChongqing University Cancer HospitalChongqingChina
| | - Zhao Zeng
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Collaborative Innovation Center of Hematology, Institute of Blood and Marrow TransplantationThe First Affiliated Hospital of Soochow University, Soochow UniversitySuzhouChina
| | - Zhi‐bo Zhang
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Collaborative Innovation Center of Hematology, Institute of Blood and Marrow TransplantationThe First Affiliated Hospital of Soochow University, Soochow UniversitySuzhouChina
| | - Xiao‐mei Zhang
- Department of Hematology‐OncologyChongqing University Cancer HospitalChongqingChina
| | - Man Wang
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Collaborative Innovation Center of Hematology, Institute of Blood and Marrow TransplantationThe First Affiliated Hospital of Soochow University, Soochow UniversitySuzhouChina
| | - Qing Xiao
- Department of Hematology‐OncologyChongqing University Cancer HospitalChongqingChina
| | - Jun Li
- Department of Hematology‐OncologyChongqing University Cancer HospitalChongqingChina
| | - Xiao‐qing Xie
- Department of Hematology‐OncologyChongqing University Cancer HospitalChongqingChina
| | - Sanxiu He
- Department of Hematology‐OncologyChongqing University Cancer HospitalChongqingChina
| | - Hui‐hui Fu
- Department of Hematology‐OncologyChongqing University Cancer HospitalChongqingChina
| | - Yi Liu
- Department of Hematology‐OncologyChongqing University Cancer HospitalChongqingChina
| | - Zai‐liang Yang
- Department of HematologyChongqing University FuLing Hospital, Chongqing, Central Laboratory, Chongqing University FuLing HospitalChongqingChina
| | - Yu Chen
- Department of HematologyThe Second Affiliated Hospital of Wannan Medical CollegeWuhuChina
| | - Jie Shi
- Department of HematologyAffiliated Zhongshan Hospital of Dalian UniversityDalianChina
| | - Biao Wang
- Department of HematologyThe Third Affiliated Hospital of Soochow University (The First People's Hospital of Changzhou)ChangzhouChina
| | - Hui‐ying Qiu
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Collaborative Innovation Center of Hematology, Institute of Blood and Marrow TransplantationThe First Affiliated Hospital of Soochow University, Soochow UniversitySuzhouChina
| | - Qi Zhou
- Department of HematologyChongqing University FuLing Hospital, Chongqing, Central Laboratory, Chongqing University FuLing HospitalChongqingChina
| | - Yao Liu
- Department of Hematology‐OncologyChongqing University Cancer HospitalChongqingChina
| | - Su‐ning Chen
- Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Collaborative Innovation Center of Hematology, Institute of Blood and Marrow TransplantationThe First Affiliated Hospital of Soochow University, Soochow UniversitySuzhouChina
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Nakano K, Whitehead GS, Lyons-Cohen MR, Grimm SA, Wilkinson CL, Izumi G, Livraghi-Butrico A, Cook DN, Nakano H. Chemokine CCL19 promotes type 2 T-cell differentiation and allergic airway inflammation. J Allergy Clin Immunol 2024; 153:487-502.e9. [PMID: 37956733 PMCID: PMC10922373 DOI: 10.1016/j.jaci.2023.10.024] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 10/06/2023] [Accepted: 10/12/2023] [Indexed: 11/15/2023]
Abstract
BACKGROUND Allergic asthma is driven largely by allergen-specific TH2 cells, which develop in regional lymph nodes on the interaction of naive CD4+ T cells with allergen-bearing dendritic cells that migrate from the lung. This migration event is dependent on CCR7 and its chemokine ligand, CCL21. However, is has been unclear whether the other CCR7 ligand, CCL19, has a role in allergic airway disease. OBJECTIVE This study sought to define the role of CCL19 in TH2 differentiation and allergic airway disease. METHODS Ccl19-deficient mice were studied in an animal model of allergic asthma. Dendritic cells or fibroblastic reticular cells from wild-type and Ccl19-deficient mice were cultured with naive CD4+ T cells, and cytokine production was measured by ELISA. Recombinant CCL19 was added to CD4+ T-cell cultures, and gene expression was assessed by RNA-sequencing and quantitative PCR. Transcription factor activation was assessed by flow cytometry. RESULTS Lungs of Ccl19-deficient mice had less allergic airway inflammation, reduced airway hyperresponsiveness, and less IL-4 and IL-13 production compared with lungs of Ccl19-sufficient animals. Naive CD4+ T cells cocultured with Ccl19-deficient dendritic cells or fibroblastic reticular cells produced lower amounts of type 2 cytokines than did T cells cocultured with their wild-type counterparts. Recombinant CCL19 increased phosphorylation of STAT5 and induced expression of genes associated with TH2 cell and IL-2 signaling pathways. CONCLUSIONS These results reveal a novel, TH2 cell-inducing function of CCL19 in allergic airway disease and suggest that strategies to block this pathway might help to reduce the incidence or severity of allergic asthma.
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Affiliation(s)
- Keiko Nakano
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | - Gregory S Whitehead
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | - Miranda R Lyons-Cohen
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | - Sara A Grimm
- Integrative Bioinformatics Support Group, Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | - Christina L Wilkinson
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | - Gentaro Izumi
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | | | - Donald N Cook
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC.
| | - Hideki Nakano
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC.
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8
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Liongue C, Ward AC. Myeloproliferative Neoplasms: Diseases Mediated by Chronic Activation of Signal Transducer and Activator of Transcription (STAT) Proteins. Cancers (Basel) 2024; 16:313. [PMID: 38254802 PMCID: PMC10813624 DOI: 10.3390/cancers16020313] [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: 12/07/2023] [Revised: 01/05/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Myeloproliferative neoplasms (MPNs) are hematopoietic diseases characterized by the clonal expansion of single or multiple lineages of differentiated myeloid cells that accumulate in the blood and bone marrow. MPNs are grouped into distinct categories based on key clinical presentations and distinctive mutational hallmarks. These include chronic myeloid leukemia (CML), which is strongly associated with the signature BCR::ABL1 gene translocation, polycythemia vera (PV), essential thrombocythemia (ET), and primary (idiopathic) myelofibrosis (PMF), typically accompanied by molecular alterations in the JAK2, MPL, or CALR genes. There are also rarer forms such as chronic neutrophilic leukemia (CNL), which involves mutations in the CSF3R gene. However, rather than focusing on the differences between these alternate disease categories, this review aims to present a unifying molecular etiology in which these overlapping diseases are best understood as disruptions of normal hematopoietic signaling: specifically, the chronic activation of signaling pathways, particularly involving signal transducer and activator of transcription (STAT) transcription factors, most notably STAT5B, leading to the sustained stimulation of myelopoiesis, which underpins the various disease sequalae.
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Affiliation(s)
- Clifford Liongue
- School of Medicine, Deakin University, Waurn Ponds, VIC 3216, Australia;
- Institute for Mental and Physical Health and Clinical Translation, Deakin University, Waurn Ponds, VIC 3216, Australia
| | - Alister C. Ward
- School of Medicine, Deakin University, Waurn Ponds, VIC 3216, Australia;
- Institute for Mental and Physical Health and Clinical Translation, Deakin University, Waurn Ponds, VIC 3216, Australia
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9
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Huang W, Li J, Zhu H, Qin X, Chen C, Wang B, Wei J, Song Y, Lu X, Li Z, Xia W, He A, Cheng L, Yu X, Shu K, Wang W. A novel EGFR variant EGFRx maintains glioblastoma stem cells through STAT5. Neuro Oncol 2024; 26:85-99. [PMID: 37616578 PMCID: PMC10768976 DOI: 10.1093/neuonc/noad153] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Indexed: 08/26/2023] Open
Abstract
BACKGROUND Glioblastomas are universally lethal brain tumors containing tumor-propagating glioblastoma stem cells (GSCs). EGFR gene amplification or mutation is frequently detected in GBMs and is associated with poor prognosis. However, EGFR variants in GSCs and their role in the maintenance of GSCs and progression of GBM are unclear. METHODS EGFR variants were detected through bioinformatic HISAT-StringTie-Ballgown pipeline and verified through 5' RACE, RT-PCR, ribonuclease protection, and northern blotting assays. EGFRx function was investigated through neurosphere, cell viability, intracranial xenograft and RNA-seq assays. EGFRx-STAT5 signaling was investigated through western blotting, coimmunoprecipitation, immunofluorescence, luciferase reporter, RT-PCR and CUT&Tag assays. RESULTS We identified a novel EGFR variant (EGFRx), that is specifically expressed in GSCs. Unlike the EGFRvIII variant, which lacks exons 2-7, EGFRx is characterized by the absence of exons 2-14, and encodes an EGFR protein that does not possess the entire extracellular ligand-binding domain. We observed that EGFRx exhibits significant glycosylation, is required for GSC self-renewal, proliferation, and tumorigenesis, and highly active in glioblastomas compared to normal brain tissue. Mechanistically, EGFRx constitutively and specifically activates STAT5 in GSCs through spontaneous asymmetric dimerization of the kinase domain. CONCLUSIONS EGFRx plays essential roles in the maintenance of the GSC phenotype through constitutive activation of STAT5 and promotes GBM progression, suggesting that EGFRx-STAT5 signaling represents a promising therapeutic target for GBM.
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Affiliation(s)
- Wei Huang
- Department of Human Anatomy, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Li
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongtao Zhu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xuhui Qin
- Department of Human Anatomy, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chao Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bing Wang
- Department of Human Anatomy, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jinxia Wei
- Department of Human Anatomy, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanyang Song
- Department of Human Anatomy, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xia Lu
- Department of Human Anatomy, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhongyu Li
- Department of Human Anatomy, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenqing Xia
- Department of Human Anatomy, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Aodi He
- Department of Human Anatomy, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lidong Cheng
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xingjiang Yu
- Department of Histology and Embryology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Shu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Wang
- Department of Human Anatomy, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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10
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Zhang Y, Zhao L, Wu A, Lin P, Fan J, Chen J, Wang X, Zeng X. Abnormal M1 polarization of placental macrophage induced by IL-15/ STAT5 activation in VVC may lead to adverse pregnancy outcomes. Microbes Infect 2024; 26:105232. [PMID: 37802467 DOI: 10.1016/j.micinf.2023.105232] [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: 07/12/2023] [Revised: 09/20/2023] [Accepted: 09/30/2023] [Indexed: 10/10/2023]
Abstract
Pregnant women with vulvovaginal candidiasis (VVC) may experience adverse pregnancy outcomes such as premature delivery, intrauterine infection, abortion, and neonatal infection. Therefore, finding new treatments for VVC in pregnancy is a public health priority. We aimed to study the adverse consequences of Candida albicans (C. albicans) vaginal infection in pregnant mice and explore the mechanisms by which C. albicans affects macrophages. Our findings contribute to the development of new approaches to treat VVC during pregnancy. We established an animal model of vaginal infection by C. albicans in pregnant mice and observed adverse pregnancy outcomes such as decreased body weight, reduced implantation number, and increased abortion rates. Additionally, we infected mouse macrophage line RAW264.7 cells with C. albicans and established a cell model. We employed RT-qPCR, Western blot, and immunofluorescence staining to verify the changes in the IL-15/STAT5 signaling pathway and the role it played on the M1 polarization of C. albicans-infected macrophages at both the gene and protein levels. Our results indicate that the adverse pregnancy outcomes in VVC may be linked to changes in the IL-15/STAT5 pathway induced by C. albicans, which could impact macrophage M1 polarization.
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Affiliation(s)
- Yuhan Zhang
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing 210004, Jiangsu, PR China
| | - Ling Zhao
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing 210004, Jiangsu, PR China
| | - Aiwen Wu
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing 210004, Jiangsu, PR China
| | - Pingping Lin
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing 210004, Jiangsu, PR China
| | - Jianing Fan
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing 210004, Jiangsu, PR China
| | - Jie Chen
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing 210004, Jiangsu, PR China
| | - Xinyan Wang
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing 210004, Jiangsu, PR China.
| | - Xin Zeng
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing 210004, Jiangsu, PR China.
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11
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Liongue C, Sobah ML, Ward AC. Signal Transducer and Activator of Transcription Proteins at the Nexus of Immunodeficiency, Autoimmunity and Cancer. Biomedicines 2023; 12:45. [PMID: 38255152 PMCID: PMC10813391 DOI: 10.3390/biomedicines12010045] [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: 11/30/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 01/24/2024] Open
Abstract
The signal transducer and activator of transcription (STAT) family of proteins has been demonstrated to perform pivotal roles downstream of a myriad of cytokines, particularly those that control immune cell production and function. This is highlighted by both gain-of-function (GOF) and loss-of-function (LOF) mutations being implicated in various diseases impacting cells of the immune system. These mutations are typically inherited, although somatic GOF mutations are commonly observed in certain immune cell malignancies. This review details the growing appreciation of STAT proteins as a key node linking immunodeficiency, autoimmunity and cancer.
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Affiliation(s)
- Clifford Liongue
- School of Medicine, Deakin University, Waurn Ponds, Geelong, VIC 3216, Australia; (C.L.); (M.L.S.)
- Institute for Mental and Physical Health and Clinical Translation, Deakin University, Waurn Ponds, Geelong, VIC 3216, Australia
| | - Mohamed Luban Sobah
- School of Medicine, Deakin University, Waurn Ponds, Geelong, VIC 3216, Australia; (C.L.); (M.L.S.)
| | - Alister C. Ward
- School of Medicine, Deakin University, Waurn Ponds, Geelong, VIC 3216, Australia; (C.L.); (M.L.S.)
- Institute for Mental and Physical Health and Clinical Translation, Deakin University, Waurn Ponds, Geelong, VIC 3216, Australia
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12
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Gwon MG, Leem J, An HJ, Gu H, Bae S, Kim JH, Park KK. The decoy oligodeoxynucleotide against HIF-1α and STAT5 ameliorates atopic dermatitis-like mouse model. Mol Ther Nucleic Acids 2023; 34:102036. [PMID: 37799329 PMCID: PMC10550406 DOI: 10.1016/j.omtn.2023.102036] [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] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 09/15/2023] [Indexed: 10/07/2023]
Abstract
Atopic dermatitis (AD) is a common inflammatory skin disease caused by an immune disorder. Mast cells are known to be activated and granulated to maintain an allergic reaction, including rhinitis, asthma, and AD. Although hypoxia-inducible factor-1 alpha (HIF-1α) and signal transducer and activator of transcription 5 (STAT5) play crucial roles in mast cell survival and granulation, their effects need to be clarified in allergic disorders. Thus, we designed decoy oligodeoxynucleotide (ODN) synthetic DNA, without open ends, containing complementary sequences for HIF-1α and STAT5 to suppress the transcriptional activities of HIF-1α and STAT5. In this study, we demonstrated the effects of HIF-1α/STAT5 ODN using AD-like in vivo and in vitro models. The HIF-1α/STAT5 decoy ODN significantly alleviated cutaneous symptoms similar to AD, including morphology changes, immune cell infiltration, skin barrier dysfunction, and inflammatory response. In the AD model, it also inhibited mast cell infiltration and degranulation in skin tissue. These results suggest that the HIF-1α/STAT5 decoy ODN ameliorates the AD-like disorder and immunoglobulin E (IgE)-induced mast cell activation by disrupting HIF-1α/STAT5 signaling pathways. Taken together, these findings suggest the possibility of HIF-1α/STAT5 as therapeutic targets and their decoy ODN as a potential therapeutic tool for AD.
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Affiliation(s)
- Mi-Gyeong Gwon
- Department of Pathology, School of Medicine, Daegu Catholic University, Daegu 42472, Republic of Korea
| | - Jaechan Leem
- Department of Immunology, School of Medicine, Daegu Catholic University, Daegu 42472, Republic of Korea
| | - Hyun-Jin An
- Department of Pathology, School of Medicine, Daegu Catholic University, Daegu 42472, Republic of Korea
| | - Hyemin Gu
- Department of Pathology, School of Medicine, Daegu Catholic University, Daegu 42472, Republic of Korea
| | - Seongjae Bae
- Department of Pathology, School of Medicine, Daegu Catholic University, Daegu 42472, Republic of Korea
| | - Jong Hyun Kim
- Department of Biochemistry, School of Medicine, Daegu Catholic University, Daegu 42472, Republic of Korea
| | - Kwan-Kyu Park
- Department of Pathology, School of Medicine, Daegu Catholic University, Daegu 42472, Republic of Korea
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13
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Omari SA, Kosasih HJ, Chung T, de Bock CE. In vitro and in vivo modelling of mutant JAK3/ STAT5 signaling in leukemia. Heliyon 2023; 9:e22085. [PMID: 38053908 PMCID: PMC10694137 DOI: 10.1016/j.heliyon.2023.e22085] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/31/2023] [Accepted: 11/03/2023] [Indexed: 12/07/2023] Open
Abstract
Mutations within the IL7-R-JAK-STAT signaling pathway are important drivers of T-cell acute lymphoblastic leukemia (T-ALL). Here we describe the important steps required to generate retroviral particles for the stable expression of mutant JAK3 constructs that induce constitutive JAK/STAT signaling. These are subsequently used for the viral transduction of the IL-3 cytokine-dependent Ba/F3 cell line or murine hematopoietic stem and progenitor cells (HSPCs) for in vitro and in vivo modelling of cytokine-independent growth or leukemia initiation respectively.
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Affiliation(s)
- Sofia A. Omari
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney 2052, Australia
- School of Clinical Medicine, Medicine and Health, UNSW Sydney, Sydney 2052, Australia
| | - Hansen J. Kosasih
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney 2052, Australia
- School of Clinical Medicine, Medicine and Health, UNSW Sydney, Sydney 2052, Australia
| | - Thomas Chung
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney 2052, Australia
- School of Clinical Medicine, Medicine and Health, UNSW Sydney, Sydney 2052, Australia
| | - Charles E. de Bock
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney 2052, Australia
- School of Clinical Medicine, Medicine and Health, UNSW Sydney, Sydney 2052, Australia
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14
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Pelayo R. A new hope for early T cell precursor acute lymphoblastic leukemia therapy based on STAT5+ leukemic stem cell targeting. J Leukoc Biol 2023; 114:381-383. [PMID: 37607260 DOI: 10.1093/jleuko/qiad094] [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: 06/12/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 08/24/2023] Open
Abstract
Leukemia stem cells are known to drive tumor progression, drug resistance, microenvironmental shift, and relapse, which would make them a perfect therapeutic target. However, their phenotypic and functional similarity to their normal counterparts leaves limited road maps for their selective elimination. Tremblay et al. recently unraveled the fundamental role of overactivated pSTAT5 as a functional marker of early T cell precursor acute lymphoblastic leukemia stem cells driving leukemic progression and highlighted its potential use as a therapeutic target to prevent fatal outcomes.
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Affiliation(s)
- Rosana Pelayo
- Unidad de Educación e Investigación, Instituto Mexicano del Seguro Social, Centro de Investigación Biomédica de Oriente, Km 4.5 Carretera Atlixco-Metepec, 74360 Puebla, Mexico
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15
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Kobayashi K, Han L, Lu SN, Ninomiya K, Isobe N, Nishimura T. Effects of hydrostatic compression on milk production-related signaling pathways in mouse mammary epithelial cells. Exp Cell Res 2023; 431:113762. [PMID: 37648075 DOI: 10.1016/j.yexcr.2023.113762] [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: 06/23/2023] [Revised: 08/23/2023] [Accepted: 08/25/2023] [Indexed: 09/01/2023]
Abstract
Mammary epithelial cells (MECs) secrete milk into the mammary alveolar lumen during lactation. The secreted milk accumulates in the alveolar lumen until milk ejection occurs, and excess milk accumulation downregulates milk production in alveolar MECs. Intramammary hydrostatic pressure also increases in the alveolar lumen in a manner dependent on milk accumulation. In this study, we investigated whether high hydrostatic compression directly affects lactating MECs, using a commercial compression device and a lactation culture model of MECs, which have milk production ability and less permeable tight junctions. High hydrostatic compression at 100 kPa for 8 h decreased β-casein and increased claudin-4 levels concurrently with inactivation of STAT5 and glucocorticoid receptor signaling pathways. In addition, high hydrostatic compression for 1 h inactivated STAT5 and activated p38 MAPK signaling. Furthermore, repeated rises and falls of the hourly hydrostatic compression induced activation of positive (Akt, mTOR) and negative (STAT3, NF-κB) signaling pathways for milk production concurrently with stimulation of casein and lactoferrin production in MECs. These results indicate that milk production-related signaling pathways in MECs change in response to hydrostatic compression. Hydrostatic compression of the alveolar lumen may directly regulate milk production in the alveolar MECs of lactating mammary glands.
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Affiliation(s)
- Ken Kobayashi
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589, Sapporo, Japan.
| | - Liang Han
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589, Sapporo, Japan.
| | - Shan-Ni Lu
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589, Sapporo, Japan.
| | - Kazuki Ninomiya
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589, Sapporo, Japan.
| | - Naoki Isobe
- Laboratory of Animal Histophysiology, Graduate School of Integrated Science for Life Faculty of Applied Biological Science, Hiroshima University, 1-4-4, Kagamiyama, 739-8528, Higashi-Hiroshima, Japan.
| | - Takanori Nishimura
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589, Sapporo, Japan.
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16
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Dvořáček L, Marková J, Holoubek A, Grebeňová D, Kundrát D, Kuželová K, Schwarz J. A novel germline hyperactivating JAK2 mutation L604F. Ann Hematol 2023; 102:2725-2734. [PMID: 37639050 PMCID: PMC10492870 DOI: 10.1007/s00277-023-05423-y] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 08/19/2023] [Indexed: 08/29/2023]
Abstract
Somatic JAK2 mutations are the main molecular cause of the vast majority of polycythemia vera (PV) cases. According to a recent structural model, the prevalent acquired V617F mutation improves the stability of the JAK2 dimer, thereby enhancing the constitutive JAK2 kinase activity. Germline JAK2 mutations usually do not largely alter JAK2 signaling, although they may modulate the impact of V617F. We found an unusual germline JAK2 mutation L604F in homozygous form in a young PV patient, along with a low allele burden JAK2 V617F mutation, and in her apparently healthy sister. Their father with a PV-like disease had L604F in a heterozygous state, without V617F. The functional consequences of JAK2 L604Fmutation were compared with those induced by V617F in two different in vitro model systems: (i) HEK293T cells were transfected with plasmids for exogenous JAK2-GFP expression, and (ii) endogenous JAK2 modifications were introduced into HeLa cells using CRISPR/Cas9. Both mutations significantly increased JAK2 constitutive activity in transfected HEK293T cells. In the second model, JAK2 modification resulted in reduced total JAK2 protein levels. An important difference was also detected: as described previously, the effect of V617F on JAK2 kinase activity was abrogated in the absence of the aromatic residue F595. In contrast, JAK2 hyperactivation by L604F was only partially inhibited by the F595 change to alanine. We propose that the L604F mutation increases the probability of spontaneous JAK2 dimer formation, which is physiologically mediated by F595. In addition, L604F may contribute to dimer stabilization similarly to V617F.
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Affiliation(s)
- Lukáš Dvořáček
- Department of Proteomics, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Jana Marková
- Clinical Department, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Aleš Holoubek
- Department of Proteomics, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Dana Grebeňová
- Department of Proteomics, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - David Kundrát
- Department of Genomics, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Kateřina Kuželová
- Department of Proteomics, Institute of Hematology and Blood Transfusion, Prague, Czech Republic.
| | - Jiří Schwarz
- Clinical Department, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
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Cole S, Manghera A, Burns L, Barrett J, Yager N, Rhys H, Skelton A, Cole J, Goodyear CS, Griffiths M, Baeten D, Bertolini M, Shaw S, Al-Mossawi H, Maroof A. Differential regulation of IL-17A and IL-17F via STAT5 contributes to psoriatic disease. J Allergy Clin Immunol 2023; 152:783-798. [PMID: 37244461 DOI: 10.1016/j.jaci.2023.03.035] [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: 12/06/2022] [Revised: 03/23/2023] [Accepted: 03/30/2023] [Indexed: 05/29/2023]
Abstract
BACKGROUND IL-17A plays a pivotal pathogenic role in several immune-mediated inflammatory diseases. Despite sharing 50% sequence homology with IL-17A, the role of IL-17F remains less clear. Clinical findings suggest that dual inhibition of IL-17A and IL-17F in psoriatic disease is more efficacious than IL-17A inhibition alone, positing a pathogenic role for IL-17F. OBJECTIVE We characterized the regulation of IL-17A and IL-17F in psoriatic disease. METHODS Using both in vitro systems and lesional skin tissue from patients, we interrogated the chromosomal, transcriptional, and protein expression landscape of IL-17A+ and IL-17F+ TH17 cells. Alongside established assays such as single-cell RNA sequencing, we developed a novel cytokine-capture technique that was combined with chromatin immunoprecipitation sequencing and RNA sequencing. RESULTS We confirm a preferential elevation of IL-17F over IL-17A in psoriatic disease and show that expression of each isoform predominantly occurs in distinct cell populations. The expression of both IL-17A and IL-17F exhibited a high degree of plasticity, with the balance between the 2 isoforms influenced by proinflammatory signaling and by anti-inflammatory drugs such as methylprednisolone. This plasticity was reflected in a broad H3K4me3 region at the IL17A-F locus, while opposing effects of STAT5/IL-2 signaling were observed for each of the 2 genes. Functionally, higher IL17F expression was linked to greater cell proliferation. CONCLUSION There are key differences in the regulation of IL-17A and IL-17F in psoriatic disease, leading to distinct inflammatory cell populations. As such, we propose that both IL-17A and IL-17F neutralization may be required to maximally inhibit IL-17-driven pathology.
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Affiliation(s)
| | | | | | | | - Nicole Yager
- Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford
| | | | | | - John Cole
- Institute of Infection, Immunity, and Inflammation, University of Glasgow, Glasgow
| | - Carl S Goodyear
- Institute of Infection, Immunity, and Inflammation, University of Glasgow, Glasgow
| | | | | | - Marta Bertolini
- Monasterium Laboratory Skin and Hair Research Solutions, Munster
| | | | - Hussein Al-Mossawi
- Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford
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18
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Awasthi N, Ward AC, Liongue C. Analysis of Potential Non-Canonical or Alternate STAT5 Functions in Immune Development and Growth. FRONT BIOSCI-LANDMRK 2023; 28:187. [PMID: 37664942 DOI: 10.31083/j.fbl2808187] [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: 04/16/2023] [Revised: 07/10/2023] [Accepted: 07/21/2023] [Indexed: 09/05/2023]
Abstract
BACKGROUND Signal transducer and activator of transcription (STAT) proteins play key roles in development, growth, and homeostasis. These roles have principally been assigned to their "canonical" function as inducible transcriptional activators acting downstream of cytokines and other factors. However, variant "non-canonical" functions have also been identified. The potential in vivo role for non-canonical STAT functions was investigated in the zebrafish model. METHODS Two zebrafish Stat5.1 mutants were generated using CRISPR/Cas9 that should impact canonical functionality: one with a deleted transactivation domain (ΔTAD) and another with a disrupted tyrosine motif (ΔTM). Immune cell development, growth, and adiposity of these Stat5.1 mutants were assessed in comparison to a Stat5.1 knockout (KO) mutant in which both canonical and non-canonical functions were ablated. RESULTS Both the ΔTAD and ΔTM mutants showed significantly reduced embryonic T lymphopoiesis, similar to the KO mutant. Additionally, adult ΔTAD and ΔTM mutants displayed a decrease in T cell markers in the kidney, but not as severe as the KO, which also showed T cell disruption in the spleen. Severe growth deficiency and increased adiposity were observed in all mutants, but ΔTAD showed a more modest growth defect whereas ΔTM exhibited more profound impacts on both growth and adiposity, suggesting additional gain-of-function activity. CONCLUSIONS These results indicate that canonical Stat5.1 plays a major role in T cell development and growth throughout the lifespan and non-canonical Stat5.1 functions also contribute to aspects of adult T lymphocyte development and growth, with alternate functions impacting growth and adiposity.
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Affiliation(s)
| | - Alister C Ward
- School of Medicine, Deakin University, 3216 Victoria, Australia
- Institute of Mental and Physical Health and Clinical Translation, Deakin University, 3216 Victoria, Australia
| | - Clifford Liongue
- School of Medicine, Deakin University, 3216 Victoria, Australia
- Institute of Mental and Physical Health and Clinical Translation, Deakin University, 3216 Victoria, Australia
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19
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Wei Y, Braunstein Z, Chen J, Min X, Yang H, Duan L, Dong L, Zhong J. JAK2/ STAT5 inhibition protects mice from experimental autoimmune encephalomyelitis by modulating T cell polarization. Int Immunopharmacol 2023; 120:110382. [PMID: 37269741 DOI: 10.1016/j.intimp.2023.110382] [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: 03/28/2023] [Revised: 05/17/2023] [Accepted: 05/22/2023] [Indexed: 06/05/2023]
Abstract
Multiple sclerosis (MS) has been considered as a T cell-mediated autoimmune disease. However, the signaling pathways regulating effector T cells in MS have yet to be elucidated. Janus kinase 2 (JAK2) plays a crucial role in hematopoietic/immune cytokine receptor signal transduction. Here, we tested the mechanistic regulation of JAK2 and the therapeutic potential of pharmacological JAK2 inhibition in MS. Both inducible whole-body JAK2 knockout and T cell-specific JAK2 knockout completely prevented the onset of experimental autoimmune encephalomyelitis (EAE), a widely used MS animal model. Mice with JAK2 deficiency in T cells exhibited minimal demyelination and minimal CD45+ leukocyte infiltration in the spinal cord, accompanied by a remarkable reduction of T helper cell type 1 (TH1) and type 17 (TH17) in the draining lymph nodes and spinal cord. In vitro experiments showed that disruption of JAK2 markedly suppressed TH1 differentiation and IFNγ production. The phosphorylation of signal transducer and activator of transcription 5 (STAT5) was reduced in JAK2 deficient T cells, while STAT5 overexpression significantly increased TH1 and IFNγ production in STAT5 transgenic mice. Consistent with these results, JAK1/2 inhibitor baricitinib or selective JAK2 inhibitor fedratinib attenuated the frequencies of TH1 as well as TH17 in the draining lymph nodes and alleviated the EAE disease activity in mice. Our findings suggest that overactive JAK2 signaling in T lymphocytes is the culprit in EAE, which may serve as a potent therapeutic target for autoimmune disease.
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Affiliation(s)
- Yingying Wei
- Department of Rheumatology and Immunology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Zachary Braunstein
- Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Jun Chen
- Sinopharm Dongfeng General Hospital (Hubei Clinical Research Center of Hypertension), Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Xinwen Min
- Sinopharm Dongfeng General Hospital (Hubei Clinical Research Center of Hypertension), Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Handong Yang
- Sinopharm Dongfeng General Hospital (Hubei Clinical Research Center of Hypertension), Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Lihua Duan
- Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH 44106, USA; Department of Rheumatology, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi 330006, China.
| | - Lingli Dong
- Department of Rheumatology and Immunology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China.
| | - Jixin Zhong
- Department of Rheumatology and Immunology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH 44106, USA; Institute of Allergy and Clinical Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Vascular Aging (HUST), Ministry of Education, Wuhan, Hubei 430030, China.
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20
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León B. A model of Th2 differentiation based on polarizing cytokine repression. Trends Immunol 2023; 44:399-407. [PMID: 37100645 DOI: 10.1016/j.it.2023.04.004] [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: 01/27/2023] [Revised: 03/31/2023] [Accepted: 04/04/2023] [Indexed: 04/28/2023]
Abstract
Conventional dendritic cells (cDCs) can integrate multiple stimuli from the environment and provide three separate outputs in terms of antigen presentation, costimulation, and cytokine production; this guides the activation, expansion, and differentiation of distinct functional T helper subsets. Accordingly, the current dogma posits that T helper cell specification requires these three signals in sequence. Data show that T helper 2 (Th2) cell differentiation requires antigen presentation and costimulation from cDCs but does not require polarizing cytokines. In this opinion article, we propose that the 'third signal' driving Th2 cell responses is, in fact, the absence of polarizing cytokines; indeed, the secretion of the latter is actively suppressed in cDCs, concomitant with acquired pro-Th2 functions.
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Affiliation(s)
- Beatriz León
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA.
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21
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Kobayashi K, Han L, Koyama T, Lu SN, Nishimura T. Sweet taste receptor subunit T1R3 regulates casein secretion and phosphorylation of STAT5 in mammary epithelial cells. Biochim Biophys Acta Mol Cell Res 2023; 1870:119448. [PMID: 36878266 DOI: 10.1016/j.bbamcr.2023.119448] [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] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/25/2023] [Accepted: 02/12/2023] [Indexed: 03/06/2023]
Abstract
During lactation, mammary epithelial cells (MECs) on the apical membrane are in contact with lactose in milk, while MECs on the basolateral membrane are in contact with glucose in blood. Both glucose and lactose are sweeteners that are sensed by a sweet taste receptor. Previously, we have shown that lactose exposure on the basolateral membrane, but not the apical membrane, inhibits casein production and phosphorylation of STAT5 in MECs. However, it remains unclear whether MECs have a sweet taste receptor. In this study, we confirmed that the sweet taste receptor subunit T1R3 existed in both the apical and basolateral membranes of MECs. Subsequently, we investigated the influence of apical and basolateral sucralose as a ligand for the sweet taste receptor using a cell culture model. In this model, upper and lower media were separated by the MEC layer with less-permeable tight junctions. The results showed in the absence of glucose, both apical and basolateral sucralose induced phosphorylation of STAT5, which is a positive transcriptional factor for milk production. In contrast, the T1R3 inhibitor basolateral lactisole reducing phosphorylated STAT5 and secreted caseins in the presence of glucose. Furthermore, exposure of the apical membrane to sucralose in the presence of glucose inhibited the phosphorylation of STAT5. Simultaneously, GLUT1 was partially translocated from the basolateral membrane to the cytoplasm in MECs. These results suggest that T1R3 functions as a sweet receptor and is closely involved in casein production in MECs.
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Affiliation(s)
- Ken Kobayashi
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589 Sapporo, Japan.
| | - Liang Han
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589 Sapporo, Japan
| | - Taku Koyama
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589 Sapporo, Japan
| | - Shan-Ni Lu
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589 Sapporo, Japan
| | - Takanori Nishimura
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589 Sapporo, Japan
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22
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Heidary S, Awasthi N, Page N, Allnutt T, Lewis RS, Liongue C, Ward AC. A zebrafish model of growth hormone insensitivity syndrome with immune dysregulation 1 (GHISID1). Cell Mol Life Sci 2023; 80:109. [PMID: 36995466 PMCID: PMC10063521 DOI: 10.1007/s00018-023-04759-y] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 02/03/2023] [Accepted: 03/15/2023] [Indexed: 03/31/2023]
Abstract
Signal transducer and activator of transcription (STAT) proteins act downstream of cytokine receptors to facilitate changes in gene expression that impact a range of developmental and homeostatic processes. Patients harbouring loss-of-function (LOF) STAT5B mutations exhibit postnatal growth failure due to lack of responsiveness to growth hormone as well as immune perturbation, a disorder called growth hormone insensitivity syndrome with immune dysregulation 1 (GHISID1). This study aimed to generate a zebrafish model of this disease by targeting the stat5.1 gene using CRISPR/Cas9 and characterising the effects on growth and immunity. The zebrafish Stat5.1 mutants were smaller, but exhibited increased adiposity, with concomitant dysregulation of growth and lipid metabolism genes. The mutants also displayed impaired lymphopoiesis with reduced T cells throughout the lifespan, along with broader disruption of the lymphoid compartment in adulthood, including evidence of T cell activation. Collectively, these findings confirm that zebrafish Stat5.1 mutants mimic the clinical impacts of human STAT5B LOF mutations, establishing them as a model of GHISID1.
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Affiliation(s)
- Somayyeh Heidary
- School of Medicine, Deakin University, Pigdons Road, Geelong, VIC, 3216, Australia
| | - Nagendra Awasthi
- School of Medicine, Deakin University, Pigdons Road, Geelong, VIC, 3216, Australia
| | - Nicole Page
- School of Medicine, Deakin University, Pigdons Road, Geelong, VIC, 3216, Australia
| | - Theo Allnutt
- School of Medicine, Deakin University, Pigdons Road, Geelong, VIC, 3216, Australia
| | - Rowena S Lewis
- School of Life and Environmental Sciences, Deakin University, Burwood, VIC, 3125, Australia
| | - Clifford Liongue
- School of Medicine, Deakin University, Pigdons Road, Geelong, VIC, 3216, Australia
- IMPACT, Deakin University, Geelong, VIC, 3216, Australia
| | - Alister C Ward
- School of Medicine, Deakin University, Pigdons Road, Geelong, VIC, 3216, Australia.
- IMPACT, Deakin University, Geelong, VIC, 3216, Australia.
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23
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Takeda K, Tago K, Funakoshi-Tago M. The indispensable role of the RNA helicase DDX5 in tumorigenesis induced by the myeloproliferative neoplasm-associated JAK2V617F mutant. Cell Signal 2023; 102:110537. [PMID: 36442590 DOI: 10.1016/j.cellsig.2022.110537] [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: 08/10/2022] [Revised: 11/03/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022]
Abstract
A point mutation (V617F) in the Janus kinase 2 (JAK2) gene results in the production of disorderly activated tyrosine kinase, which causes myeloproliferative neoplasms (MPN). We herein demonstrated that the RNA helicase DDX5 was highly expressed at the mRNA and protein levels through the activation of signal transducer and activator of transcription 5 (STAT5) in Ba/F3 cells expressing a JAK2V617F mutant and erythropoietin receptor (V617F/EpoR cells) and MPN patient-derived HEL cells. A treatment with the JAK1/2 inhibitor, ruxolitinib and STAT5 inhibitor, pimozide significantly inhibited DDX5 mRNA expression and enhanced the degradation of DDX5 in these cells, suggesting that the JAK2V617F mutant positively regulates DDX5 mRNA expression and DDX5 protein stability by activating STAT5. The knockdown of DDX5 specifically inhibited the activation of mechanistic target of rapamycin (mTOR) in V617F/EpoR cells and HEL cells and significantly suppressed the proliferation of these cells. Furthermore, the knockdown of DDX5 markedly suppressed tumorigenesis, splenomegaly, and liver hypertrophy caused by an inoculation of V617F/EpoR cells in nude mice. Collectively, these results revealed that JAK2V617F exhibits transforming activity by inducing the expression of DDX5 in a STAT5-dependent manner, indicating the potential of the JAK2V617F/STAT5/DDX5 axis as a therapeutic target in the treatment of MPN.
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Affiliation(s)
- Kengo Takeda
- Division of Hygienic Chemistry, Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Kenji Tago
- Division of Structural Biochemistry, Department of Biochemistry, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke-shi, Tochigi-ken 329-0498, Japan.
| | - Megumi Funakoshi-Tago
- Division of Hygienic Chemistry, Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
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24
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Castillo-Sanchez R, Cortes-Reynosa P, Lopez-Perez M, Garcia-Hernandez A, Salazar EP. Caveolae Microdomains Mediate STAT5 Signaling Induced by Insulin in MCF-7 Breast Cancer Cells. J Membr Biol 2023; 256:79-90. [PMID: 35751654 DOI: 10.1007/s00232-022-00253-x] [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: 02/21/2022] [Accepted: 06/06/2022] [Indexed: 02/07/2023]
Abstract
Caveolae are small plasma membrane invaginations constituted for membrane proteins namely caveolins and cytosolic proteins termed cavins, which can occupy up to 50% of the surface of mammalian cells. The caveolae have been involved with a variety of cellular processes including regulation of cellular signaling. Insulin is a hormone that mediates a variety of physiological processes through activation of insulin receptor (IR), which is a tyrosine kinase receptor expressed in all mammalian tissues. Insulin induces activation of signal transducers and activators of transcription (STAT) family members including STAT5. In this study, we demonstrate, for the first time, that insulin induces phosphorylation of STAT5 at tyrosine-694 (STAT5-Tyr(P)694), STAT5 nuclear accumulation and an increase in STAT5-DNA complex formation in MCF-7 breast cancer cells. Insulin also induces nuclear accumulation of STAT5-Tyr(P)694, caveolin-1, and IR in MCF-7 cells. STAT5 nuclear accumulation and the increase of STAT5-DNA complex formation require the integrity of caveolae and microtubule network. Moreover, insulin induces an increase and nuclear accumulation of STAT5-Tyr(P)694 in MDA-MB-231 breast cancer cells. In conclusion, results demonstrate that caveolae and microtubule network play an important role in STAT5-Tyr(P)694, STAT5 nuclear accumulation and STAT5-DNA complex formation induced by insulin in breast cancer cells.
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Affiliation(s)
- Rocio Castillo-Sanchez
- Departamento de Biologia Celular, Cinvestav-IPN, Av. IPN # 2508, 07360, Mexico City, Mexico
| | - Pedro Cortes-Reynosa
- Departamento de Biologia Celular, Cinvestav-IPN, Av. IPN # 2508, 07360, Mexico City, Mexico
| | - Mario Lopez-Perez
- Departamento de Biologia Celular, Cinvestav-IPN, Av. IPN # 2508, 07360, Mexico City, Mexico
| | | | - Eduardo Perez Salazar
- Departamento de Biologia Celular, Cinvestav-IPN, Av. IPN # 2508, 07360, Mexico City, Mexico.
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25
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Abstract
The Signal Transducer and Activator of Transcription (STAT)-5 proteins are required in immune regulation and homeostasis and play a crucial role in the development and function of several hematopoietic cells. STAT5b activation is involved in the expression of genes that participate in cell development, proliferation, and survival. STAT5a and STAT5b are paralogs and only human mutations in STAT5B have been identified leading to immune dysregulation and hematopoietic malignant transformation. The inactivating STAT5B mutations cause impaired post-natal growth, recurrent infections and immune dysregulation, whereas gain of function somatic mutations cause dysregulated allergic inflammation. These mutations are rare, and they are associated with a wide spectrum of clinical manifestations which provide a disease model elucidating the biological mechanism of STAT5 by studying the consequences of perturbations in STAT5 activity. Further, the use of Jak inhibitors as therapy for a variety of autoimmune and malignant disorders has increased substantially heading relevant lessons for the consequences of Jak/STAT immunomodulation from the human model. This review summarizes the biology of the STAT5 proteins, human disease associate with molecular defects in STAT5b, and the connection between aberrant activation of STAT5b and the development of certain cancers.
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Affiliation(s)
- Madison R. Smith
- Department of Pediatrics, Division of Immunology, Allergy, and Retrovirology, Baylor College of Medicine, Houston, TX, United States,William T. Shearer Texas Children’s Hospital Center for Human Immunobiology, Houston, TX, United States
| | - Lisa R. Forbes Satter
- Department of Pediatrics, Division of Immunology, Allergy, and Retrovirology, Baylor College of Medicine, Houston, TX, United States,William T. Shearer Texas Children’s Hospital Center for Human Immunobiology, Houston, TX, United States
| | - Alexander Vargas-Hernández
- Department of Pediatrics, Division of Immunology, Allergy, and Retrovirology, Baylor College of Medicine, Houston, TX, United States,William T. Shearer Texas Children’s Hospital Center for Human Immunobiology, Houston, TX, United States,*Correspondence: Alexander Vargas-Hernández,
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26
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Stavrou A, Ortiz A, Costa M. Cadmium Activates EGFR/ STAT5 Signaling to Overcome Calcium Chelation and Promote Epithelial to Mesenchymal Transition. Biomolecules 2023; 13. [PMID: 36671501 DOI: 10.3390/biom13010116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 12/31/2022] [Accepted: 01/04/2023] [Indexed: 01/10/2023] Open
Abstract
Cadmium (Cd) is a heavy metal found in cigarette smoke, as well as in air and drinking water due to agricultural and industrial activities, and it poses a health risk to the general population. Prolonged low-dose Cd exposure via inhalation or ingestion causes lung and kidney cancers in humans and in animal models. While high doses of Cd exposure are correlated with the occupational setting and are cytotoxic, low doses of Cd are mainly correlated with exposure in the general population and induce carcinogenesis. The mechanism by which Cd-exposed cells overcome calcium chelation and induce malignant transformation remains unclear. This study examines how cells exposed to low doses of Cd survive loss of E-cadherin cell-cell adhesion via activation of the epidermal growth factor receptor (EGFR) and signal transducer and activator of transcription 5 (STAT5), which work to upregulate genes associated with survival and proliferation. To demonstrate the role of Cd in EGFR/STAT5 activation, we exposed two epithelial cell lines, BEAS-2B and HEK293, to two different doses (0.4 µM and 1.6 µM) of Cadmium chloride hemipentahydrate (CdCl2·2.5H2O) that are environmentally relevant to levels of Cd found in food and cigarettes for 24 h (hours) and 9 weeks (wks). When comparing cells treated with Cd with control cells, the Cd treated cells exhibited faster proliferation; therefore, we studied activation of EGFR via the STAT5 pathway using immunofluorescence (IF) for protein expression and localization and, in addition, RT-qPCR to examine changes in EGFR/STAT5 inducible genes. Our results showed an increase in EGFR and phosphorylated EGFR (p-EGFR) protein, with 1.6 µM of Cadmium having the highest expression at both 24-hour (hr) and 9-week (wk) exposures. Moreover, the IF analysis also demonstrated an increase of STAT5 and phosphorylated STAT5 (pSTAT5) in both short-term and long-term exposure, with 0.4 µM having the highest expression at 24 h. Finally, via Western blot analysis, we showed that there was a dose-dependent decrease in E-cadherin protein expression and increased N-cadherin in cells treated with low doses of Cd. These data demonstrate that epithelial cells can overcome Cd-mediated toxicity via activation of EGFR pathway to induce cell proliferation and survival and promote epithelial to mesenchymal transition.
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27
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Qi T, Xu X, Guo Y, Xia Y, Peng L, Li C, Ding F, Gao C, Fan M, Yu M, Zhao H, He Y, Li W, Hai C, Gao E, Zhang X, Gao F, Fan Y, Yan W, Tao L. CSF2RB overexpression promotes the protective effects of mesenchymal stromal cells against ischemic heart injury. Theranostics 2023; 13:1759-1773. [PMID: 37064880 PMCID: PMC10091875 DOI: 10.7150/thno.81336] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 11/29/2022] [Accepted: 02/26/2023] [Indexed: 04/18/2023] Open
Abstract
Aims: The invasive intramyocardial injection of mesenchymal stromal cells (MSCs) allows for limited repeat injections and shows poor therapeutic efficacy against ischemic heart failure. Intravenous injection is an alternative method because this route allows for repeated, noninvasive, and easy delivery. However, the lack of targeting of MSCs hinders the ability of these cells to accumulate in the ischemic area after intravenous injections. We investigated whether and how the overexpression of colony-stimulating factor 2 receptor beta subunit (CSF2RB) may regulate the cardiac homing of MSCs and their cardioprotective effects against ischemic heart failure. Methods and Results: Adult mice were subjected to myocardial ischemia/reperfusion (MI/R) or sham operations. We observed significantly higher CSF2 protein expression and secretion by the ischemic heart from 1 day to 2 weeks after MI/R. Mouse adipose tissue-derived MSCs (ADSCs) were infected with adenovirus harboring CSF2RB or control adenovirus. Enhanced green fluorescent protein (EGFP)-labeled ADSCs were intravenously injected into MI/R mice every three days for a total of 7 times. Compared with ADSCs infected with control adenovirus, intravenously delivered ADSCs overexpressing CSF2RB exhibited markedly increased cardiac homing. Histological analysis revealed that CSF2RB overexpression significantly enhanced the ADSC-mediated proangiogenic, antiapoptotic, and antifibrotic effects. More importantly, ADSCs overexpressing CSF2RB significantly increased the left ventricular ejection fraction and cardiac contractility/relaxation in MI/R mice. In vitro experiments demonstrated that CSF2RB overexpression increases the migratory capacity and reduces the hypoxia/reoxygenation-induced apoptosis of ADSCs. We identified STAT5 phosphorylation as the key mechanism underlying the effects of CSF2RB on promoting ADSC migration and inhibiting ADSC apoptosis. RNA sequencing followed by cause-effect analysis revealed that CSF2RB overexpression increases the expression of the ubiquitin ligase RNF4. Coimmunoprecipitation and coimmunostaining experiments showed that RNF4 binds to phosphorylated STAT5. RNF4 knockdown reduced STAT5 phosphorylation as well as the antiapoptotic and promigratory actions of ADSCs overexpressing CSF2RB. Conclusions: We demonstrate for the first time that CSF2RB overexpression optimizes the efficacy of intravenously delivered MSCs in the treatment of ischemic heart injury by increasing the response of the MSCs to a CSF2 gradient and CSF2RB-dependent STAT5/RNF4 activation.
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Affiliation(s)
- Tingting Qi
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Xiaoming Xu
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Yongzhen Guo
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
- School of Public Management, Northwest University, Xi'an 710127, China
| | - Yunlong Xia
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Lu Peng
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Congye Li
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Fengyue Ding
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Chao Gao
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Miaomiao Fan
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Min Yu
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Huishou Zhao
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Yuan He
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Wenli Li
- Department of Toxicology, The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shanxi Key Lab of Free Radical Biology and Medicine, School of Public Health, The Fourth Military Medical University, Xi'an 710032, China
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Chunxu Hai
- Department of Toxicology, The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Shanxi Key Lab of Free Radical Biology and Medicine, School of Public Health, The Fourth Military Medical University, Xi'an 710032, China
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Erhe Gao
- Center for Translational Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Xing Zhang
- Key Laboratory of Aerospace Medicine of the Ministry of Education, School of Aerospace Medicine, Fourth Military Medical University, Xi'an 710032, China
| | - Feng Gao
- Key Laboratory of Aerospace Medicine of the Ministry of Education, School of Aerospace Medicine, Fourth Military Medical University, Xi'an 710032, China
| | - Yanhong Fan
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
- ✉ Corresponding authors: Ling Tao, MD, PhD, Professor and Chief of Department of Cardiology, Xijing Hospital, The Fourth Military Medical University. 127 West Changle Rd, Xi'an, China, 710032. Tel.: +86-29-84771692; +86-29-84775183; Fax: +86-29-84771692; E-mail: . Wenjun Yan, MD, PhD, Associate Professor, Department of Cardiology, Xijing Hospital, The Fourth Military Medical University. 127 West Changle Rd, Xi'an, China, 710032. Tel.: +86-29-84775183; Fax: +86-29-84771692; E-mail: . Yanhong Fan, MD, PhD, Associate Professor, Department of Cardiology, Xijing Hospital, The Fourth Military Medical University. 127 West Changle Rd, Xi'an, China, 710032. Tel.: +86-29-84775183; Fax: +86-29-84771692;
| | - Wenjun Yan
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
- ✉ Corresponding authors: Ling Tao, MD, PhD, Professor and Chief of Department of Cardiology, Xijing Hospital, The Fourth Military Medical University. 127 West Changle Rd, Xi'an, China, 710032. Tel.: +86-29-84771692; +86-29-84775183; Fax: +86-29-84771692; E-mail: . Wenjun Yan, MD, PhD, Associate Professor, Department of Cardiology, Xijing Hospital, The Fourth Military Medical University. 127 West Changle Rd, Xi'an, China, 710032. Tel.: +86-29-84775183; Fax: +86-29-84771692; E-mail: . Yanhong Fan, MD, PhD, Associate Professor, Department of Cardiology, Xijing Hospital, The Fourth Military Medical University. 127 West Changle Rd, Xi'an, China, 710032. Tel.: +86-29-84775183; Fax: +86-29-84771692;
| | - Ling Tao
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
- ✉ Corresponding authors: Ling Tao, MD, PhD, Professor and Chief of Department of Cardiology, Xijing Hospital, The Fourth Military Medical University. 127 West Changle Rd, Xi'an, China, 710032. Tel.: +86-29-84771692; +86-29-84775183; Fax: +86-29-84771692; E-mail: . Wenjun Yan, MD, PhD, Associate Professor, Department of Cardiology, Xijing Hospital, The Fourth Military Medical University. 127 West Changle Rd, Xi'an, China, 710032. Tel.: +86-29-84775183; Fax: +86-29-84771692; E-mail: . Yanhong Fan, MD, PhD, Associate Professor, Department of Cardiology, Xijing Hospital, The Fourth Military Medical University. 127 West Changle Rd, Xi'an, China, 710032. Tel.: +86-29-84775183; Fax: +86-29-84771692;
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Dong H, Zhong W, Zhang W, Hao L, Guo W, Yue R, Sun X, Sun Z, Bataller R, Zhou Z. Loss of long-chain acyl-CoA synthetase 1 promotes hepatocyte death in alcohol-induced steatohepatitis. Metabolism 2023; 138:155334. [PMID: 36349655 DOI: 10.1016/j.metabol.2022.155334] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 09/07/2022] [Accepted: 10/14/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Alcohol consumption has been shown to disrupt hepatic lipid homeostasis. Long-chain acyl-CoA synthetase 1 (ACSL1) critically regulates hepatic fatty acid metabolism and lipid homeostasis by channeling fatty acids to lipid metabolic pathways. However, it remains unclear how ACSL1 contributes to the development of alcohol-associated liver disease (ALD). METHODS We performed chronic alcohol feeding animal studies with hepatocyte-specific ACSL1 knockout (ACSL1Δhep) mice, hepatocyte-specific STAT5 knockout (STAT5Δhep) mice, and ACSL1Δhep based-STAT5B overexpression (Stat5b-OE) mice. Cell studies were conducted to define the causal role of ACSL1 deficiency in the pathogenesis of alcohol-induced liver injury. The clinical relevance of the STAT5-ACSL1 pathway was examined using liver tissues from patients with alcoholic hepatitis (AH) and normal subjects (Normal). RESULTS We found that chronic alcohol consumption reduced hepatic ACSL1 expression in AH patients and ALD mice. Hepatocyte-specific ACSL1 deletion exacerbated alcohol-induced liver injury by increasing free fatty acids (FFA) accumulation and cell death. Cell studies revealed that FFA elicited the translocation of BAX and p-MLKL to the lysosomal membrane, resulting in lysosomal membrane permeabilization (LMP) and thereby initiating lysosomal-mediated cell death pathway. Furthermore, we identified that the signal transducer and activator of transcription 5 (STAT5) is a novel transcriptional regulator of ACSL1. Deletion of STAT5 exacerbated alcohol-induced liver injury in association with downregulation of ACSL1, and reactivation of ACSL1 by STAT5 overexpression effectively ameliorated alcohol-induced liver injury. In addition, ACSL1 expression was positively correlated with STAT5 and negatively correlated with cell death was also validated in the liver of AH patients. CONCLUSIONS ACSL1 deficiency due to STAT5 inactivation critically mediates alcohol-induced lipotoxicity and cell death in the development of ALD. These findings provide insights into alcohol-induced liver injury.
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Affiliation(s)
- Haibo Dong
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Wei Zhong
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA; Department of Nutrition, the University of North Carolina at Greensboro, Greensboro, NC, USA
| | - Wenliang Zhang
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Liuyi Hao
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Wei Guo
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Ruichao Yue
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Xinguo Sun
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Zhaoli Sun
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ramon Bataller
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Zhanxiang Zhou
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA; Department of Nutrition, the University of North Carolina at Greensboro, Greensboro, NC, USA.
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Gumus N, Gunduz C, Tezcanli Kaymaz B. STAT5 inhibitor Pimozide as a probable therapeutic option in overcoming Ponatinib resistance in K562 leukemic cells. J Biomol Struct Dyn 2023; 41:186-199. [PMID: 34842047 DOI: 10.1080/07391102.2021.2004924] [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] [Indexed: 01/03/2023]
Abstract
Signal Transducer and Activator of Transcription 5 (STAT5) is a transcription factor that plays a key role in neoplasia, triggered by the fusion oncogene BCR-ABL1; it is not only an essential protein for the pathogenesis of chronic myeloid leukemia (CML), but also its overexpression is associated with drug resistance developed toward various generations of Tyrosine Kinase Inhibitors (TKIs); these are still accepted as gold standard therapeutics for the treatment of CML. In this study, it was investigated whether suppression of STAT5 via a "STAT5 inhibitor" Pimozide resulted in any regain of chemosensitivity to third-generation TKI Ponatinib. Accordingly, the experimental work was designed on both parental CML cell line K562WT and its 1 nM Ponatinib-resistant counterpart, indicated as K562-Pon1. Based on the experimental results, Pimozide was more effective in resistant cells compared to wild-type cells for inducing apoptosis and block cell arrest. Combination therapy of Pimozide and Ponatinib demonstrated that STAT5 was a significant protein for regaining chemosensitivity to Ponatinib when its expression was suppressed both at mRNA and protein level. In conclusion, we consider that STAT5 inhibitor Pimozide can be a good alternative or combination therapy with TKIs for patients suffering from chemotherapeutic drug resistance. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Nurcan Gumus
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham, UK.,Department of Medical Biology, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Cumhur Gunduz
- Department of Medical Biology, Faculty of Medicine, Ege University, Izmir, Turkey
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Alkashgari HR, Ruiz-Jimenez C, Stoian C, Coats JS, Baez I, Chirshev E, Martinez SR, Dovat S, Francis-Boyle OL, Casiano CA, Payne KJ. TSLP as a Potential Therapy in the Treatment of CRLF2 B Cell Acute Lymphoblastic Leukemia. Int J Mol Sci 2022; 24:474. [PMID: 36613920 PMCID: PMC9820664 DOI: 10.3390/ijms24010474] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022] Open
Abstract
Cytokine receptor-like factor 2 B-cell acute lymphoblastic leukemia (CRLF2 B-ALL) is a high-risk subtype characterized by CRLF2 overexpression with poor survival rates in children and adults. CRLF2 and interleukin-7 receptor alpha (IL-7Rα) form a receptor for the cytokine thymic stromal lymphopoietin (TSLP), which induces JAK/STAT and PI3K/AKT/mTOR pathway signals. Previous studies from our group showed that low TSLP doses increased STAT5, AKT, and S6 phosphorylation and contributed to CRLF2 B-ALL cell survival. Here we investigated the role of TSLP in the survival and proliferation of CRLF2 B-ALL cells in vitro and in vivo. We hypothesized that high doses of TSLP increase CRLF2 signals and contribute to increased proliferation of CRLF2 B-ALL cells in vitro and in vivo. Interestingly, we observed the opposite effect. Specifically, high doses of TSLP induced apoptosis in human CRLF2 B-ALL cell lines in vitro, prevented engraftment of CRLF2 B-ALL cells, and prolonged the survival of +TSLP patient-derived-xenograft mice. Mechanistically, we showed that high doses of TSLP induced loss of its receptor and loss of CRLF2 signals in vitro. These results suggest that high doses of TSLP could be further investigated as a potential therapy for the treatment of CRLF2 B-ALL.
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Affiliation(s)
- Hossam R. Alkashgari
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA
- Department of Physiology, College of Medicine, University of Jeddah, Jeddah 23890, Saudi Arabia
| | - Caleb Ruiz-Jimenez
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA
| | - Cornelia Stoian
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA
| | - Jacqueline S. Coats
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA
| | - Ineavely Baez
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA
| | - Evgeny Chirshev
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA
| | - Shannalee R. Martinez
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA
| | - Sinisa Dovat
- College of Medicine, Pennsylvania State University, Hershey, PA 17033, USA
| | - Olivia L. Francis-Boyle
- Department of Pharmaceutical and Administrative Sciences, School of Pharmacy, Loma Linda University, Loma Linda, CA 92354, USA
- Department of Pathology & Human Anatomy, School of Medicine, Loma Linda University, Loma Linda, CA 92354, USA
| | - Carlos A. Casiano
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA
- Rheumatology Division, Department of Medicine, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA
| | - Kimberly J. Payne
- Center for Health Disparities and Molecular Medicine, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA
- Department of Pathology & Human Anatomy, School of Medicine, Loma Linda University, Loma Linda, CA 92354, USA
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31
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Sorger H, Dey S, Vieyra‐Garcia PA, Pölöske D, Teufelberger AR, de Araujo ED, Sedighi A, Graf R, Spiegl B, Lazzeri I, Braun T, Garces de los Fayos Alonso I, Schlederer M, Timelthaler G, Kodajova P, Pirker C, Surbek M, Machtinger M, Graier T, Perchthaler I, Pan Y, Fink‐Puches R, Cerroni L, Ober J, Otte M, Albrecht JD, Tin G, Abdeldayem A, Manaswiyoungkul P, Olaoye OO, Metzelder ML, Orlova A, Berger W, Wobser M, Nicolay JP, André F, Nguyen VA, Neubauer HA, Fleck R, Merkel O, Herling M, Heitzer E, Gunning PT, Kenner L, Moriggl R, Wolf P. Blocking STAT3/5 through direct or upstream kinase targeting in leukemic cutaneous T-cell lymphoma. EMBO Mol Med 2022; 14:e15200. [PMID: 36341492 PMCID: PMC9727928 DOI: 10.15252/emmm.202115200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 09/26/2022] [Accepted: 10/02/2022] [Indexed: 11/09/2022] Open
Abstract
Leukemic cutaneous T-cell lymphomas (L-CTCL) are lymphoproliferative disorders of skin-homing mature T-cells causing severe symptoms and high mortality through chronic inflammation, tissue destruction, and serious infections. Despite numerous genomic sequencing efforts, recurrent driver mutations have not been identified, but chromosomal losses and gains are frequent and dominant. We integrated genomic landscape analyses with innovative pharmacologic interference studies to identify key vulnerable nodes in L-CTCL. We detected copy number gains of loci containing the STAT3/5 oncogenes in 74% (n = 17/23) of L-CTCL, which correlated with the increased clonal T-cell count in the blood. Dual inhibition of STAT3/5 using small-molecule degraders and multi-kinase blockers abolished L-CTCL cell growth in vitro and ex vivo, whereby PAK kinase inhibition was specifically selective for L-CTCL patient cells carrying STAT3/5 gains. Importantly, the PAK inhibitor FRAx597 demonstrated encouraging anti-leukemic activity in vivo by inhibiting tumor growth and disease dissemination in intradermally xenografted mice. We conclude that STAT3/5 and PAK kinase interaction represents a new therapeutic node to be further explored in L-CTCL.
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Affiliation(s)
- Helena Sorger
- Unit of Functional Cancer Genomics, Institute of Animal Breeding and GeneticsUniversity of Veterinary MedicineViennaAustria
- Department of Pediatric and Adolescent Surgery, Vienna General HospitalMedical University of ViennaViennaAustria
| | - Saptaswa Dey
- Department of Dermatology and VenereologyMedical University of GrazGrazAustria
- Department of PathologyMedical University of ViennaViennaAustria
| | | | - Daniel Pölöske
- Unit of Functional Cancer Genomics, Institute of Animal Breeding and GeneticsUniversity of Veterinary MedicineViennaAustria
| | | | - Elvin D de Araujo
- Department of Chemical and Physical SciencesUniversity of Toronto MississaugaMississaugaONCanada
- Centre for Medicinal ChemistryUniversity of Toronto MississaugaMississaugaONCanada
| | - Abootaleb Sedighi
- Department of Chemical and Physical SciencesUniversity of Toronto MississaugaMississaugaONCanada
- Centre for Medicinal ChemistryUniversity of Toronto MississaugaMississaugaONCanada
| | - Ricarda Graf
- Diagnostic & Research Center for Molecular Bio‐Medicine, Institute of Human GeneticsMedical University of GrazGrazAustria
| | - Benjamin Spiegl
- Diagnostic & Research Center for Molecular Bio‐Medicine, Institute of Human GeneticsMedical University of GrazGrazAustria
| | - Isaac Lazzeri
- Diagnostic & Research Center for Molecular Bio‐Medicine, Institute of Human GeneticsMedical University of GrazGrazAustria
| | - Till Braun
- Department of Medicine ICIO‐ABCD, CECAD and CMMC Cologne UniversityCologneGermany
| | - Ines Garces de los Fayos Alonso
- Department of PathologyMedical University of ViennaViennaAustria
- Unit of Laboratory Animal PathologyUniversity of Veterinary Medicine ViennaViennaAustria
| | | | | | - Petra Kodajova
- Unit of Laboratory Animal PathologyUniversity of Veterinary Medicine ViennaViennaAustria
| | - Christine Pirker
- Centre for Cancer ResearchMedical University of ViennaViennaAustria
- Comprehensive Cancer CenterMedical University of ViennaViennaAustria
| | - Marta Surbek
- Unit of Functional Cancer Genomics, Institute of Animal Breeding and GeneticsUniversity of Veterinary MedicineViennaAustria
| | - Michael Machtinger
- Unit of Functional Cancer Genomics, Institute of Animal Breeding and GeneticsUniversity of Veterinary MedicineViennaAustria
| | - Thomas Graier
- Department of Dermatology and VenereologyMedical University of GrazGrazAustria
| | | | - Yi Pan
- Department of Dermatology and VenereologyMedical University of GrazGrazAustria
| | - Regina Fink‐Puches
- Department of Dermatology and VenereologyMedical University of GrazGrazAustria
| | - Lorenzo Cerroni
- Department of Dermatology and VenereologyMedical University of GrazGrazAustria
| | - Jennifer Ober
- Core Facility Flow Cytometry, Center for Medical Research (ZMF)Medical University of GrazGrazAustria
| | - Moritz Otte
- Department of Medicine ICIO‐ABCD, CECAD and CMMC Cologne UniversityCologneGermany
| | - Jana D Albrecht
- Department of DermatologyUniversity Hospital MannheimMannheimGermany
| | - Gary Tin
- Department of Chemical and Physical SciencesUniversity of Toronto MississaugaMississaugaONCanada
- Centre for Medicinal ChemistryUniversity of Toronto MississaugaMississaugaONCanada
| | - Ayah Abdeldayem
- Department of Chemical and Physical SciencesUniversity of Toronto MississaugaMississaugaONCanada
- Centre for Medicinal ChemistryUniversity of Toronto MississaugaMississaugaONCanada
| | - Pimyupa Manaswiyoungkul
- Department of Chemical and Physical SciencesUniversity of Toronto MississaugaMississaugaONCanada
- Centre for Medicinal ChemistryUniversity of Toronto MississaugaMississaugaONCanada
| | - Olasunkanmi O Olaoye
- Department of Chemical and Physical SciencesUniversity of Toronto MississaugaMississaugaONCanada
- Centre for Medicinal ChemistryUniversity of Toronto MississaugaMississaugaONCanada
| | - Martin L Metzelder
- Department of Pediatric and Adolescent Surgery, Vienna General HospitalMedical University of ViennaViennaAustria
| | - Anna Orlova
- Unit of Functional Cancer Genomics, Institute of Animal Breeding and GeneticsUniversity of Veterinary MedicineViennaAustria
| | - Walter Berger
- Centre for Cancer ResearchMedical University of ViennaViennaAustria
- Comprehensive Cancer CenterMedical University of ViennaViennaAustria
| | - Marion Wobser
- Department of DermatologyUniversity Hospital WuerzburgWuerzburgGermany
| | - Jan P Nicolay
- Department of DermatologyUniversity Hospital MannheimMannheimGermany
| | - Fiona André
- University Clinic for Dermatology, Venereology and Allergology InnsbruckMedical University of InnsbruckInnsbruckAustria
| | - Van Anh Nguyen
- University Clinic for Dermatology, Venereology and Allergology InnsbruckMedical University of InnsbruckInnsbruckAustria
| | - Heidi A Neubauer
- Unit of Functional Cancer Genomics, Institute of Animal Breeding and GeneticsUniversity of Veterinary MedicineViennaAustria
| | | | - Olaf Merkel
- Department of PathologyMedical University of ViennaViennaAustria
| | - Marco Herling
- Department of Medicine ICIO‐ABCD, CECAD and CMMC Cologne UniversityCologneGermany
- Department of Hematology, Cellular Therapy, and HemostaseologyUniversity of LeipzigLeipzigGermany
| | - Ellen Heitzer
- Diagnostic & Research Center for Molecular Bio‐Medicine, Institute of Human GeneticsMedical University of GrazGrazAustria
| | - Patrick T Gunning
- Department of Chemical and Physical SciencesUniversity of Toronto MississaugaMississaugaONCanada
- Centre for Medicinal ChemistryUniversity of Toronto MississaugaMississaugaONCanada
- Janpix, a Centessa CompanyLondonUK
| | - Lukas Kenner
- Department of PathologyMedical University of ViennaViennaAustria
- Unit of Laboratory Animal PathologyUniversity of Veterinary Medicine ViennaViennaAustria
- Comprehensive Cancer CenterMedical University of ViennaViennaAustria
- Christian Doppler Laboratory for Applied Metabolomics (CDL‐AM), Division of Nuclear MedicineMedical University of ViennaViennaAustria
- CBmed GmbH Center for Biomarker Research in MedicineGrazAustria
| | - Richard Moriggl
- Unit of Functional Cancer Genomics, Institute of Animal Breeding and GeneticsUniversity of Veterinary MedicineViennaAustria
| | - Peter Wolf
- Department of Dermatology and VenereologyMedical University of GrazGrazAustria
- BioTechMed GrazGrazAustria
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32
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Dudka W, Hoser G, Mondal SS, Turos-Korgul L, Swatler J, Kusio-Kobialka M, Wołczyk M, Klejman A, Brewinska-Olchowik M, Kominek A, Wiech M, Machnicki MM, Seferynska I, Stoklosa T, Piwocka K. Targeting integrated stress response with ISRIB combined with imatinib treatment attenuates RAS/RAF/MAPK and STAT5 signaling and eradicates chronic myeloid leukemia cells. BMC Cancer 2022; 22:1254. [PMID: 36460969 PMCID: PMC9719211 DOI: 10.1186/s12885-022-10289-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 07/24/2022] [Accepted: 11/07/2022] [Indexed: 12/05/2022] Open
Abstract
The integrated stress response (ISR) facilitates cellular adaptation to unfavorable conditions by reprogramming the cellular response. ISR activation was reported in neurological disorders and solid tumors; however, the function of ISR and its role as a possible therapeutic target in hematological malignancies still remain largely unexplored. Previously, we showed that the ISR is activated in chronic myeloid leukemia (CML) cells and correlates with blastic transformation and tyrosine kinase inhibitor (TKI) resistance. Moreover, the ISR was additionally activated in response to imatinib as a type of protective internal signaling. Here, we show that ISR inhibition combined with imatinib treatment sensitized and more effectively eradicated leukemic cells both in vitro and in vivo compared to treatment with single agents. The combined treatment specifically inhibited the STAT5 and RAS/RAF/MEK/ERK pathways, which are recognized as drivers of resistance. Mechanistically, this drug combination attenuated both interacting signaling networks, leading to BCR-ABL1- and ISR-dependent STAT5 activation. Consequently, leukemia engraftment in patient-derived xenograft mice bearing CD34+ TKI-resistant CML blasts carrying PTPN11 mutation responsible for hyperactivation of the RAS/RAF/MAPK and JAK/STAT5 pathways was decreased upon double treatment. This correlated with the downregulation of genes related to the RAS/RAF/MAPK, JAK/STAT5 and stress response pathways and was associated with lower expression of STAT5-target genes regulating proliferation, viability and the stress response. Collectively, these findings highlight the effect of imatinib plus ISRIB in the eradication of leukemic cells resistant to TKIs and suggest potential clinical benefits for leukemia patients with TKI resistance related to RAS/RAF/MAPK or STAT5 signaling. We propose that personalized treatment based on the genetic selection of patients carrying mutations that cause overactivation of the targeted pathways and therefore make their sensitivity to such treatment probable should be considered as a possible future direction in leukemia treatment.
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Affiliation(s)
- Wioleta Dudka
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Grazyna Hoser
- Center of Postgraduate Medical Education, Laboratory of Flow Cytometry, Warsaw, Poland
| | - Shamba S. Mondal
- grid.419305.a0000 0001 1943 2944Laboratory of Bioinformatics, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Laura Turos-Korgul
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Julian Swatler
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Monika Kusio-Kobialka
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Magdalena Wołczyk
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Agata Klejman
- grid.419305.a0000 0001 1943 2944Laboratory of Animal Models, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Marta Brewinska-Olchowik
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Agata Kominek
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Milena Wiech
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Marcin M. Machnicki
- grid.13339.3b0000000113287408Department of Tumor Biology and Genetics, Medical University of Warsaw, Warsaw, Poland
| | - Ilona Seferynska
- grid.419032.d0000 0001 1339 8589Department of Hematology, Institute of Hematology and Blood Transfusion, Warsaw, Poland
| | - Tomasz Stoklosa
- grid.13339.3b0000000113287408Department of Tumor Biology and Genetics, Medical University of Warsaw, Warsaw, Poland
| | - Katarzyna Piwocka
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
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Ross MG, Kobayashi K, Han G, Desai M. Modulation of Milk and Lipid Synthesis and Secretion in a3-Dimensional Mouse Mammary Epithelial Cell Culture Model: Effects of Palmitate and Orlistat. Nutrients 2022; 14:4948. [PMID: 36500977 PMCID: PMC9739267 DOI: 10.3390/nu14234948] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/16/2022] [Accepted: 11/18/2022] [Indexed: 11/23/2022] Open
Abstract
Human milk synthesis is impacted by maternal diet, serum composition, and substrate uptake and synthesis by mammary epithelial cells (MECs). The milk of obese/high-fat-diet women has an increased fat content, which promote excess infant weight gain and the risk of childhood/adult obesity. Yet, the knowledge of milk synthesis regulation is limited, and there are no established approaches to modulate human milk composition. We established a 3-dimensional mouse MEC primary culture that recreates the milk production pathway and tested the effects of the major saturated fatty acid in human milk (palmitate) and a lipoprotein lipase inhibitor (orlistat) on triglyceride production. Positive immunostaining confirmed the presence of milk protein and intracellular lipid including milk globules in the cytoplasm and extracellular space. The treatment with palmitate activated "milk" production by MECs (β-casein) and the lipid pathway (as evident by increased protein and mRNA expression). Consistent with these cellular changes, there was increased secretion of milk protein and triglyceride in MEC "milk". The treatment with orlistat suppressed milk triglyceride production. Palmitate increased milk and lipid synthesis, partly via lipoprotein lipase activation. These findings demonstrate the ability to examine MEC pathways of milk production via both protein and mRNA and to modulate select pathways regulating milk composition in MEC culture.
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Affiliation(s)
- Michael G. Ross
- The Lundquist Institute at Harbor-UCLA Medical Center, 1124 West Carson Street, Torrance, CA 90502, USA
- Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California Los Angeles at Harbor-UCLA, Torrance, CA 90502, USA
- Department of Obstetrics and Gynecology, Charles R. Drew University, Los Angeles, CA 90059, USA
| | - Ken Kobayashi
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - Guang Han
- The Lundquist Institute at Harbor-UCLA Medical Center, 1124 West Carson Street, Torrance, CA 90502, USA
| | - Mina Desai
- The Lundquist Institute at Harbor-UCLA Medical Center, 1124 West Carson Street, Torrance, CA 90502, USA
- Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California Los Angeles at Harbor-UCLA, Torrance, CA 90502, USA
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Lin TY, Chang TM, Huang HC. Extracellular Vesicles Derived from Human Umbilical Cord Mesenchymal Stem Cells Attenuate Mast Cell Activation. Antioxidants (Basel) 2022; 11:2279. [PMID: 36421465 PMCID: PMC9686796 DOI: 10.3390/antiox11112279] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 10/10/2022] [Revised: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 07/30/2023] Open
Abstract
The therapeutic potential of extracellular vesicles isolated from stem cells have been reported in several clinical diseases. Preclinical studies have demonstrated the beneficial effects of extracellular vesicles in the treatment of heart, kidney, liver, brain, and skin injuries. To address the putative therapeutic effects and mechanisms of extracellular vesicles derived from human umbilical cord mesenchymal stem cells on allergic activation in mast cells, we isolated extracellular vesicles from human umbilical cord-derived mesenchymal stem cells (UCMSCs) by tangential-flow filtration methods. The characteristics and identification of UCMSC-derived extracellular vesicles were examined via nanoparticle tracking analysis, transmission electron microscopy and protein marker analysis. Cytokines and tryptase in the cultured supernatant of KU812 cells were analyzed using an ELISA kit. Proteins in the MAPK and STAT5 signaling pathways were detected by Western blotting. This study showed that different doses of UCMSC-derived extracellular vesicles abolish IgE-stimulated KU812 cell activation and reduce the level of NF-κB, which subsequently leads to cell degranulation and the release of IL-1β, TNF-α and IL-6. Additionally, UCMSC-derived extracellular vesicles treatment blunted the IgE-induced signaling proteins p-P38, p-JNK and p-STAT5. Our results revealed a mechanism for anti-inflammation in which extracellular vesicles can affect the activation of mast cells and thus function in allergy regulation.
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Affiliation(s)
- Tzou-Yien Lin
- Department of Pediatrics, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan 33302, Taiwan
| | - Tsong-Min Chang
- Department of Applied Cosmetology, HungKuang University, Taichung 433304, Taiwan
| | - Huey-Chun Huang
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, China Medical University, Taichung 404333, Taiwan
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Kobayashi K, Omatsu N, Han L, Shan-Ni L, Nishimura T. Early effects of lipoteichoic acid from Staphylococcus aureus on milk production-related signaling pathways in mouse mammary epithelial cells. Exp Cell Res 2022; 420:113352. [PMID: 36108712 DOI: 10.1016/j.yexcr.2022.113352] [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: 07/21/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 11/04/2022]
Abstract
Staphylococcus aureus causes subclinical mastitis; lipoteichoic acid (LTA) from S. aureus causes mastitis-like adverse effects on milk production by mammary epithelial cells (MECs). Here, we investigated the early effects of LTA from S. aureus on mouse MECs using a culture model, in which MECs produced milk components and formed less permeable tight junctions (TJs). In MECs of this model, Toll-like receptor 2 (receptor for LTA), was localized on the apical membrane, similar to MECs in lactating mammary glands. LTA weakened the TJ barrier within 1 h, concurrently with localization changes of claudin 4. LTA treatment for 24 h increased αS1-casein and decreased β-casein levels. In MECs exposed to LTA, the activation level of signal transducer and activator of transcription 5 (major transcriptional factor for milk production) was low. LTA activated signaling pathways related to cell survival (extracellular signal-regulated kinase, heat shock protein 27, and Akt) and inflammation (p38, c-Jun N-terminal kinase, and nuclear factor κB). Thus, LTA caused abnormalities in casein production and weakened the TJs by affecting multiple signaling pathways in MECs. LTA-induced changes in signaling pathways were not uniform in all MECs. Such complex and semi-negative actions of LTA may contribute to subclinical mastitis caused by S. aureus.
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Affiliation(s)
- Ken Kobayashi
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589, Sapporo, Japan.
| | - Naoki Omatsu
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589, Sapporo, Japan.
| | - Liang Han
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589, Sapporo, Japan.
| | - Lu Shan-Ni
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589, Sapporo, Japan.
| | - Takanori Nishimura
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589, Sapporo, Japan.
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Kim U, Kim S, Kim N, Shin HY. Mammary-Enriched Transcription Factors Synergize to Activate the Wap Super-Enhancer for Mammary Gland Development. Int J Mol Sci 2022; 23:11680. [PMID: 36232979 DOI: 10.3390/ijms231911680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/28/2022] [Accepted: 09/29/2022] [Indexed: 11/17/2022] Open
Abstract
Super-enhancers are large clusters of enhancers critical for cell-type-specific development. In a previous study, 440 mammary-specific super-enhancers, highly enriched for an active enhancer mark H3K27ac; a mediator MED1; and the mammary-enriched transcription factors ELF5, NFIB, STAT5A, and GR, were identified in the genome of the mammary epithelium of lactating mice. However, the triggering mechanism for mammary-specific super-enhancers and the molecular interactions between key transcription factors have not been clearly elucidated. In this study, we investigated in vivo protein-protein interactions between major transcription factors that activate mammary-specific super-enhancers. In mammary epithelial cells, ELF5 strongly interacted with NFIB while weakly interacting with STAT5A, and it showed modest interactions with MED1 and GR, a pattern unlike that in non-mammary cells. We further investigated the role of key transcription factors in the initial activation of the mammary-specific Wap super-enhancer, using CRISPR-Cas9 genome editing to introduce single or combined mutations at transcription factor binding sites in the pioneer enhancer of the Wap super-enhancer in mice. ELF5 and STAT5A played key roles in igniting Wap super-enhancer activity, but an intact transcription factor complex was required for the full function of the super-enhancer. Our study demonstrates that mammary-enriched transcription factors within a protein complex interact with different intensities and synergize to activate the Wap super-enhancer. These findings provide an important framework for understanding the regulation of cell-type-specific development.
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Li J, Xu F, Li S, Xie M, Li N. Gentamicin promoted the production of CD4 +CD25 + Tregs via the STAT5 signaling pathway in mice sepsis. BMC Immunol 2022; 23:47. [PMID: 36162982 PMCID: PMC9513864 DOI: 10.1186/s12865-022-00521-4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 09/12/2022] [Indexed: 11/10/2022] Open
Abstract
Background Increasing studies have reported that gentamicin (GNT) plays an essential role in sepsis; however, its underlying mechanism is still unclear. In this study, we investigated the mechanism of GNT in sepsis. Results We observed that GNT enhanced survival and alleviated inflammatory injuries of the lungs, liver, kidneys, and intestines in mice with sepsis. Furthermore, regulatory T cells (Tregs) showed enhanced inhibitory function, and pro-inflammatory cytokines IL-1β, TNF-α, and IL-2 and anti-inflammatory cytokine IL-10 showed decreased and increased peritoneal fluid levels, respectively, after treatment with GNT. GNT showed enhanced phosphorylation of signal transducer and activator of transcription 5 (p-STAT5) in Tregs in vivo and in vitro. The STAT5 inhibitor restrained the increased functional changes of Tregs and reduced inflammatory responses induced by GNT in vitro. Moreover, the STAT5 inhibitor reversed GNT-mediated impacts on survival and inflammation, and the percentage, apoptosis, and phenotypic and functional changes of Tregs in neonatal sepsis. Conclusions Our study revealed that GNT regulates the function of Tregs via the STAT5 signaling pathway, alleviating inflammatory injuries, and provides novel evidence in the treatment of neonatal sepsis. Supplementary Information The online version contains supplementary material available at 10.1186/s12865-022-00521-4.
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Affiliation(s)
- Jinfeng Li
- Department of Neonatology, Guangdong Medical University Affiliated Dongguan Children's Hospital, No. 68 Xi Hu Third Road, Shilong Town, Dongguan, 523325, Guangdong, China
| | - Fengdan Xu
- Department of Neonatology, Guangdong Medical University Affiliated Dongguan Children's Hospital, No. 68 Xi Hu Third Road, Shilong Town, Dongguan, 523325, Guangdong, China
| | - Song Li
- Department of Neonatology, Guangdong Medical University Affiliated Dongguan Children's Hospital, No. 68 Xi Hu Third Road, Shilong Town, Dongguan, 523325, Guangdong, China
| | - Mingyu Xie
- Department of Neonatology, Guangdong Medical University Affiliated Dongguan Children's Hospital, No. 68 Xi Hu Third Road, Shilong Town, Dongguan, 523325, Guangdong, China
| | - Ning Li
- Department of Neonatology, Guangdong Medical University Affiliated Dongguan Children's Hospital, No. 68 Xi Hu Third Road, Shilong Town, Dongguan, 523325, Guangdong, China.
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王 宁, 王 一, 姜 朋, 吕 明, 胡 志, 徐 曦. [DNAM-1 regulates the proliferation and function of T regulatory type 1 cells via the IL-2/ STAT5 pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:1288-1295. [PMID: 36210700 PMCID: PMC9550559 DOI: 10.12122/j.issn.1673-4254.2022.09.03] [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] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVE To explore the role of DNAM-1 in the activation, proliferation and function of type Ⅰ regulatory T cells (Tr1 cells). METHODS Anti-CD3/CD28 antibodies were used to stimulate mouse T cells derived from the spleen of wild-type (WT) mice, and the expression level of DNAM-1 in resting and activated Tr1 cells was evaluated with flow cytometry. Na?ve CD4+ T cells isolated by magnetic cell sorting from the spleens of WT mice and DNAM-1 knockout (KO) mice were cultured in Tr1 polarizing conditions for 3 days, after which CD25 and CD69 expressions were measured using flow cytometry. The induced Tr1 cells were labelled with CFSE and cultured in the presence of anti-CD/CD28 antibodies for 3 days, and their proliferative activity was analyzed. The expressions of IL-10 and p-STAT5 in DNAM-1-deficient Tr1 cells were detected before and after IL-2 stimulation. RESULTS The expression level of DNAM-1 was significantly upregulated in CD4+ T cells and Tr1 cells after stimulation with anti-CD3/CD28 antibodies (P < 0.05). DNAM-1 knockout did not cause significant changes in the number or proportion of Tr1 cells, but but significantly increased the expression levels of the activation markers CD69 and CD25 (P < 0.05). Compared with WT Tr1 cells, DNAM-1-deficient Tr1 cells exhibited reduced proliferative activity in vitro (P < 0.05) with downregulated IL-10 production (P < 0.05) and decreased expressions of Il-10 and Gzmb mRNA (P < 0.05). In DNAM-1-deficient Tr1 cells, IL-2 stimulation significantly reduced IL-10 secretion level and the expression of p-STAT5 as compared with WT Tr1 cells. CONCLUSION DNAM-1 participate in the activation and proliferation of Tr1 cells and affect the biological functions of Tr1 cells through the IL-2/STAT5 pathway.
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Affiliation(s)
- 宁 王
- 西安医学院基础医学部基础医学研究所,陕西 西安 710021Institute of Basic Medicine, Xi'an Medical University, Xi'an 710021, China
| | - 一晗 王
- 西安医学院全科医学院临床全科医师班,陕西 西安 710021Department of General Practitioners, Xi'an Medical University, Xi'an 710021, China
| | - 朋涛 姜
- 西安医学院基础医学部基础医学研究所,陕西 西安 710021Institute of Basic Medicine, Xi'an Medical University, Xi'an 710021, China
| | - 明华 吕
- 西安医学院基础医学部基础医学研究所,陕西 西安 710021Institute of Basic Medicine, Xi'an Medical University, Xi'an 710021, China
| | - 志芳 胡
- 西安医学院基础医学部基础医学研究所,陕西 西安 710021Institute of Basic Medicine, Xi'an Medical University, Xi'an 710021, China
| | - 曦 徐
- 西安医学院基础医学部基础医学研究所,陕西 西安 710021Institute of Basic Medicine, Xi'an Medical University, Xi'an 710021, China
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Sun H, Tang C, Chung SH, Ye XQ, Makusheva Y, Han W, Kubo M, Shichino S, Ueha S, Matsushima K, Ikeo K, Asano M, Iwakura Y. Blocking DCIR mitigates colitis and prevents colorectal tumors by enhancing the GM-CSF- STAT5 pathway. Cell Rep 2022; 40:111158. [PMID: 35926458 DOI: 10.1016/j.celrep.2022.111158] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 01/20/2022] [Revised: 05/26/2022] [Accepted: 07/13/2022] [Indexed: 11/28/2022] Open
Abstract
Dendritic cell immunoreceptor (DCIR; Clec4a2), a member of the C-type lectin receptor family, plays important roles in homeostasis of the immune and bone systems. However, the intestinal role of this molecule is unclear. Here, we show that dextran sodium sulfate (DSS)-induced colitis and azoxymethane-DSS-induced intestinal tumors are reduced in Clec4a2-/- mice independently of intestinal microbiota. STAT5 phosphorylation and expression of Csf2 and tight junction genes are enhanced, while Il17a and Cxcl2 are suppressed in the Clec4a2-/- mouse colon, which exhibits reduced infiltration of neutrophils and myeloid-derived suppressor cells. Granulocyte-macrophage colony-stimulating factor (GM-CSF) administration ameliorates DSS colitis associated with reduced Il17a and enhanced tight junction gene expression, whereas anti-GM-CSF exacerbates symptoms. Furthermore, anti-NA2, a ligand for DCIR, ameliorates colitis and prevents colorectal tumors. These observations indicate that blocking DCIR signaling ameliorates colitis and suppresses colonic tumors, suggesting DCIR as a possible target for the treatment of these diseases.
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Affiliation(s)
- Haiyang Sun
- Center for Animal Disease Models, Research Institute for Biomedical Sciences, Tokyo University of Science, Yamazaki 2669, Noda, Chiba 278-0022, Japan
| | - Ce Tang
- Center for Animal Disease Models, Research Institute for Biomedical Sciences, Tokyo University of Science, Yamazaki 2669, Noda, Chiba 278-0022, Japan; Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, No.58, Zhong Shan Er Lu, Guangzhou, Guangdong Province 510080, China
| | - Soo-Hyun Chung
- Center for Animal Disease Models, Research Institute for Biomedical Sciences, Tokyo University of Science, Yamazaki 2669, Noda, Chiba 278-0022, Japan
| | - Xiao-Qi Ye
- Center for Animal Disease Models, Research Institute for Biomedical Sciences, Tokyo University of Science, Yamazaki 2669, Noda, Chiba 278-0022, Japan
| | - Yulia Makusheva
- Center for Animal Disease Models, Research Institute for Biomedical Sciences, Tokyo University of Science, Yamazaki 2669, Noda, Chiba 278-0022, Japan
| | - Wei Han
- Center for Animal Disease Models, Research Institute for Biomedical Sciences, Tokyo University of Science, Yamazaki 2669, Noda, Chiba 278-0022, Japan
| | - Masato Kubo
- Division of Molecular Pathology, Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Chiba 278-0022, Japan
| | - Shigeyuki Shichino
- Division of Molecular Regulation of Inflammatory and Immune Diseases, Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Chiba 278-0022, Japan
| | - Satoshi Ueha
- Division of Molecular Regulation of Inflammatory and Immune Diseases, Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Chiba 278-0022, Japan
| | - Koji Matsushima
- Division of Molecular Regulation of Inflammatory and Immune Diseases, Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Chiba 278-0022, Japan
| | - Kazuho Ikeo
- DNA Data Analysis Laboratory, National Institute of Genetics, Mishima, Shizuoka 411-8540, Japan
| | - Masahide Asano
- Institute of Laboratory Animals, Graduate School of Medicine, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yoichiro Iwakura
- Center for Animal Disease Models, Research Institute for Biomedical Sciences, Tokyo University of Science, Yamazaki 2669, Noda, Chiba 278-0022, Japan.
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Thangavelu G, Andrejeva G, Bolivar-Wagers S, Jin S, Zaiken MC, Loschi M, Aguilar EG, Furlan SN, Brown CC, Lee YC, Hyman CM, Feser CJ, Panoskaltsis-Mortari A, Hippen KL, MacDonald KP, Murphy WJ, Maillard I, Hill GR, Munn DH, Zeiser R, Kean LS, Rathmell JC, Chi H, Noelle RJ, Blazar BR. Retinoic acid signaling acts as a rheostat to balance Treg function. Cell Mol Immunol 2022; 19:820-833. [PMID: 35581350 PMCID: PMC9243059 DOI: 10.1038/s41423-022-00869-y] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 04/14/2022] [Indexed: 02/03/2023] Open
Abstract
Regulatory T cells (Tregs) promote immune homeostasis by maintaining self-tolerance and regulating inflammatory responses. Under certain inflammatory conditions, Tregs can lose their lineage stability and function. Previous studies have reported that ex vivo exposure to retinoic acid (RA) enhances Treg function and stability. However, it is unknown how RA receptor signaling in Tregs influences these processes in vivo. Herein, we employed mouse models in which RA signaling is silenced by the expression of the dominant negative receptor (DN) RARα in all T cells. Despite the fact that DNRARα conventional T cells are hypofunctional, Tregs had increased CD25 expression, STAT5 pathway activation, mTORC1 signaling and supersuppressor function. Furthermore, DNRARα Tregs had increased inhibitory molecule expression, amino acid transporter expression, and metabolic fitness and decreased antiapoptotic proteins. Supersuppressor function was observed when wild-type mice were treated with a pharmacologic pan-RAR antagonist. Unexpectedly, Treg-specific expression of DNRARα resulted in distinct phenotypes, such that a single allele of DNRARα in Tregs heightened their suppressive function, and biallelic expression led to loss of suppression and autoimmunity. The loss of Treg function was not cell intrinsic, as Tregs that developed in a noninflammatory milieu in chimeric mice reconstituted with DNRARα and wild-type bone marrow maintained the enhanced suppressive capacity. Fate mapping suggested that maintaining Treg stability in an inflammatory milieu requires RA signaling. Our findings indicate that RA signaling acts as a rheostat to balance Treg function in inflammatory and noninflammatory conditions in a dose-dependent manner.
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Affiliation(s)
- Govindarajan Thangavelu
- Department of Pediatrics, Center for Immunology, University of Minnesota, Minneapolis, MN, USA.
| | - Gabriela Andrejeva
- Center for Immunobiology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Sara Bolivar-Wagers
- Department of Pediatrics, Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Sujeong Jin
- Department of Pediatrics, Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Michael C Zaiken
- Department of Pediatrics, Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Michael Loschi
- Department of Pediatrics, Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Ethan G Aguilar
- Department of Pediatrics, Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Scott N Furlan
- Department of Pediatrics, University of Washington, Seattle, WA, USA
- Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Chrysothemis C Brown
- Howard Hughes Medical Institute, Immunology Program, and Ludwig Center, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yu-Chi Lee
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Norris Cotton Cancer Center, Lebanon, USA
| | - Cameron McDonald Hyman
- Department of Pediatrics, Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Colby J Feser
- Department of Pediatrics, Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | | | - Keli L Hippen
- Department of Pediatrics, Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Kelli P MacDonald
- Department of Immunology, Queensland Institute of Medical Research (QIMR) Berghofer Medical Research Institute and School of Medicine, University of Queensland, Brisbane, QLD, Australia
| | - William J Murphy
- Department of Dermatology, School of Medicine, University of California, Davis, Sacramento, CA, USA
| | - Ivan Maillard
- Division of Hematology/Oncology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | | | - David H Munn
- Georgia Cancer Center, Augusta University, Augusta, GA, USA
| | - Robert Zeiser
- Department of Haematology, Oncology and Stem Cell Transplantation, Faculty of Medicine, Freiburg University Medical Centre, Freiburg, Germany
| | - Leslie S Kean
- Boston Children's Hospital and the Dana-Farber Cancer Institute, Boston, MA, USA
| | - Jeffrey C Rathmell
- Center for Immunobiology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Hongbo Chi
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Randolph J Noelle
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Norris Cotton Cancer Center, Lebanon, USA
| | - Bruce R Blazar
- Department of Pediatrics, Center for Immunology, University of Minnesota, Minneapolis, MN, USA
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Kobayashi K, Wakasa H, Han L, Koyama T, Tsugami Y, Nishimura T. Lactose on the basolateral side of mammary epithelial cells inhibits milk production concomitantly with signal transducer and activator of transcription 5 inactivation. Cell Tissue Res 2022; 389:501-515. [PMID: 35748981 DOI: 10.1007/s00441-022-03651-8] [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: 12/27/2021] [Accepted: 06/09/2022] [Indexed: 11/29/2022]
Abstract
Mammary epithelial cells (MECs) are the only cells capable of synthesizing lactose. During lactation, alveolar MECs secrete lactose through the apical membrane into the alveolar lumen, whereas alveolar tight junctions (TJs) block the leakage of lactose into the basolateral sides of the MECs. However, lactose leaks from the alveolar lumen into the blood plasma in the mastitis and after weaning. This exposes the basolateral membrane of MECs to lactose. The relationship between lactose in blood plasma and milk production has been suggested. The present study determined whether lactose exposure on the basolateral membrane of mouse MECs adversely affects milk production in vitro. Restricted exposure to lactose on the basolateral side of the MECs was performed using a culture model, in which MECs on the cell culture insert exhibit milk production and less-permeable TJs. The results indicated that lactose exposure on the basolateral side inhibited casein and lipid production in the MECs. Interestingly, lactose exposure on the apical side did not show detectable effects on milk production in the MECs. Basolateral lactose exposure also caused the inactivation of STAT5, a primary transcriptional factor for milk production. Furthermore, p38 and JNK were activated by basolateral lactose exposure. The activation of p38 and JNK following anisomycin treatment reduced phosphorylated STAT5, and inhibitors of p38 blocked the reduction of phosphorylated STAT5 by basolateral lactose exposure. These findings suggest that lactose functions as a partial inhibitor for milk production but only when it directly makes contact with the basolateral membrane of MECs.
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Affiliation(s)
- Ken Kobayashi
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, Sapporo, 060-8589, Japan.
| | - Haruka Wakasa
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, Sapporo, 060-8589, Japan
| | - Liang Han
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, Sapporo, 060-8589, Japan
| | - Taku Koyama
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, Sapporo, 060-8589, Japan
| | - Yusaku Tsugami
- Laboratory of Animal Histophysiology, Graduate School of Integrated Science for Life Faculty of Applied Biological Science, Hiroshima University, 1-4-4Higashi-Hiroshima, Kagamiyama, 739-8528, Japan
| | - Takanori Nishimura
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, Sapporo, 060-8589, Japan
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Jung YY, Um JY, Chinnathambi A, Govindasamy C, Sethi G, Ahn KS. Leelamine Modulates STAT5 Pathway Causing Both Autophagy and Apoptosis in Chronic Myelogenous Leukemia Cells. Biology (Basel) 2022; 11:366. [PMID: 35336740 DOI: 10.3390/biology11030366] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/23/2022] [Accepted: 02/23/2022] [Indexed: 01/07/2023]
Abstract
Simple Summary Autophagy is a cellular mechanism that is essential for removing misfolded proteins and damaged organelles. Moreover, the aberrant activation of signal transducer and activator of transcription 5 (STAT5), which can regulate cellular survival and homeostasis, has been often observed in different malignancies. In this study, we demonstrate that leelamine inhibits the STAT5 phosphorylation while inducing autophagy as well as apoptosis in chronic myeloid leukemia cells. Leelamine induces autophagy by stimulating the expression of Atg7, beclin-1, and the production of autophagosomes, which leads to substantial inhibition of STAT5 activation. Abstract Leelamine (LEE) has recently attracted significant attention for its growth inhibitory effects against melanoma, breast cancer, and prostate cancer cells; however, its impact on hematological malignancies remains unclear. Here, we first investigate the cytotoxic effects of LEE on several human chronic myeloid leukemia (CML) cells. We noted that LEE stimulated both apoptosis and autophagy in CML cells. In addition, the constitutive activation of signal transducer and activator of transcription 5 (STAT5) was suppressed substantially upon LEE treatment. Moreover, STAT5 knockdown with small interfering RNA (siRNA) increased LEE-induced apoptosis as well as autophagy and affected the levels of various oncogenic proteins. Thus, the targeted mitigation of STAT5 activation by LEE can contribute to its diverse anticancer effects by enhancing two distinct cell death pathways.
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Fragiadaki M. Lessons from microRNA biology: Top key cellular drivers of Autosomal Dominant Polycystic Kidney Disease. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166358. [PMID: 35150832 DOI: 10.1016/j.bbadis.2022.166358] [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: 09/30/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Numerous microRNAs (miRs), small RNAs that target several pathways, have been implicated in the development of Autosomal Dominant Polycystic Kidney Disease (ADPKD), which is the most common genetic cause of kidney failure. The hallmark of ADPKD is tissue overgrowth and hyperproliferation, eventually leading to kidney failure. SCOPE OF THE REVIEW Many miRs are dysregulated in disease, yet the intracellular pathways regulated by miRs are less well described in ADPKD. Here, I summarise all the differentially expressed miRs in ADPKD and highlight the top miR-regulated cellular driver of disease. MAJOR CONCLUSIONS Literature review has identified 53 abnormally expressed miRs in ADPKD. By performing bioinformatics analysis of their target genes I present 10 key intracellular pathways that drive ADPKD progression. The top key drivers are divided into three main areas: (i) hyperproliferation and the role of JAK/STAT and PI3K pathways (ii) DNA damage and (iii) inflammation and NFκB. GENERAL SIGNIFICANCE The description of the 10 top cellular drivers of ADPKD, derived by analysis of miR signatures, is of paramount importance in better understanding the key processes resulting in pathophysiological changes that underlie disease.
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Affiliation(s)
- Maria Fragiadaki
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, S10 2RX, United Kingdom of Great Britain and Northern Ireland.
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Song N, Luo J, Huang L, Zang S, He Q, Wu J, Huang J. Mutation of Signal Transducer and Activator of Transcription 5 ( STAT5) Binding Sites Decreases Milk Allergen α S1-Casein Content in Goat Mammary Epithelial Cells. Foods 2022; 11:346. [PMID: 35159497 DOI: 10.3390/foods11030346] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 01/23/2022] [Accepted: 01/23/2022] [Indexed: 02/06/2023] Open
Abstract
αS1-Casein (encoded by the CSN1S1 gene) is associated with food allergy more than other milk protein components. Milk allergy caused by αS1-casein is derived from cow milk, goat milk and other ruminant milk. However, little is known about the transcription regulation of αS1-casein synthesis in dairy goats. This study aimed to investigate the regulatory roles of signal transducer and activator of transcription 5 (STAT5) on αS1-casein in goat mammary epithelial cells (GMEC). Deletion analysis showed that the core promoter region of CSN1S1 was located at −110 to −18 bp upstream of transcription start site, which contained two putative STAT5 binding sites (gamma-interferon activation site, GAS). Overexpression of STAT5a gene upregulated the mRNA level and the promoter activity of the CSN1S1 gene, and STAT5 inhibitor decreased phosphorylated STAT5 in the nucleus and CSN1S1 transcription activity. Further, GAS site-directed mutagenesis and chromatin immunoprecipitation (ChIP) assays revealed that GAS1 and GAS2 sites in the CSN1S1 promoter core region were binding sites of STAT5. Taken together, STAT5 directly regulates CSN1S1 transcription by GAS1 and GAS2 sites in GMEC, and the mutation of STAT5 binding sites could downregulate CSN1S1 expression and decrease αS1-casein synthesis, which provide the novel strategy for reducing the allergic potential of goat milk and improving milk quality in ruminants.
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Park JY, Won HY, DiPalma DT, Kim HK, Kim TH, Li C, Sato N, Hong C, Abraham N, Gress RE, Park JH. In vivo availability of the cytokine IL-7 constrains the survival and homeostasis of peripheral iNKT cells. Cell Rep 2022; 38:110219. [PMID: 35021100 DOI: 10.1016/j.celrep.2021.110219] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [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: 06/04/2020] [Revised: 10/06/2021] [Accepted: 12/14/2021] [Indexed: 11/03/2022] Open
Abstract
Understanding the homeostatic mechanism of invariant natural killer T (iNKT) cells is a critical issue in iNKT cell biology. Because interleukin (IL)-15 is required for the thymic generation of iNKT cells, IL-15 has also been considered necessary for the homeostasis of peripheral iNKT cells. Here, we delineated the in vivo cytokine requirement for iNKT cells, and we came to the surprising conclusion that IL-7, not IL-15, is the homeostatic cytokine for iNKT cells. Employing a series of experimental mouse models where the availability of IL-7 or IL-15 was manipulated in peripheral tissues, either by genetic tools or by adult thymectomy and cytokine pump installation, we demonstrate that the abundance of IL-7, and not IL-15, limits the size of the peripheral iNKT cell pool. These results redefine the cytokine requirement for iNKT cells and indicate competition for IL-7 between iNKT and conventional αβ T cells.
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Affiliation(s)
- Joo-Young Park
- Experimental Immunology Branch, Center for Cancer Research, National Cancer Institute, NIH, Building 10, Room 5B17, 10 Center Drive, Bethesda, MD 20892, USA; Department of Oral and Maxillofacial Surgery, Seoul National University School of Dentistry, Seoul National University Dental Hospital, 101 Daehakno, Jongno-gu, Seoul 03080, South Korea.
| | - Hee Yeun Won
- Experimental Immunology Branch, Center for Cancer Research, National Cancer Institute, NIH, Building 10, Room 5B17, 10 Center Drive, Bethesda, MD 20892, USA
| | - Devon T DiPalma
- Experimental Immunology Branch, Center for Cancer Research, National Cancer Institute, NIH, Building 10, Room 5B17, 10 Center Drive, Bethesda, MD 20892, USA
| | - Hye Kyung Kim
- Experimental Transplantation Immunology Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Tae-Hyoun Kim
- Experimental Immunology Branch, Center for Cancer Research, National Cancer Institute, NIH, Building 10, Room 5B17, 10 Center Drive, Bethesda, MD 20892, USA
| | - Can Li
- Experimental Immunology Branch, Center for Cancer Research, National Cancer Institute, NIH, Building 10, Room 5B17, 10 Center Drive, Bethesda, MD 20892, USA
| | - Noriko Sato
- Molecular Imaging Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Changwan Hong
- Department of Anatomy, Pusan National University School of Medicine, Yangsan 626-870, South Korea
| | - Ninan Abraham
- Department of Microbiology and Immunology, and Department of Zoology, Life Sciences Institute, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Ronald E Gress
- Experimental Transplantation Immunology Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Jung-Hyun Park
- Experimental Immunology Branch, Center for Cancer Research, National Cancer Institute, NIH, Building 10, Room 5B17, 10 Center Drive, Bethesda, MD 20892, USA.
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Jesser EA, Brady NJ, Huggins DN, Witschen PM, O'Connor CH, Schwertfeger KL. STAT5 is activated in macrophages by breast cancer cell-derived factors and regulates macrophage function in the tumor microenvironment. Breast Cancer Res 2021; 23:104. [PMID: 34743736 PMCID: PMC8573892 DOI: 10.1186/s13058-021-01481-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 10/25/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND In breast cancer, complex interactions between tumor cells and cells within the surrounding stroma, such as macrophages, are critical for tumor growth, progression, and therapeutic response. Recent studies have highlighted the complex nature and heterogeneous populations of macrophages associated with both tumor-promoting and tumor-inhibiting phenotypes. Defining the pathways that drive macrophage function is important for understanding their complex phenotypes within the tumor microenvironment. Signal transducer and activator of transcription (STAT) transcription factors, such as STAT5, are key regulators of immune cell function. The studies described here investigate the functional contributions of STAT5 to tumor-associated macrophage function in breast cancer. METHODS Initial studies were performed using a panel of human breast cancer and mouse mammary tumor cell lines to determine the ability of tumor cell-derived factors to induce STAT5 activation in macrophages. Further studies used these models to identify soluble factors that activate STAT5 in macrophages. To delineate STAT5-specific contributions to macrophage function, a conditional model of myeloid STAT5 deletion was used for in vitro, RNA-sequencing, and in vivo studies. The effects of STAT5 deletion in macrophages on tumor cell migration and metastasis were evaluated using in vitro co-culture migration assays and an in vivo tumor cell-macrophage co-injection model. RESULTS We demonstrate here that STAT5 is robustly activated in macrophages by tumor cell-derived factors and that GM-CSF is a key cytokine stimulating this pathway. The analysis of RNA-seq studies reveals that STAT5 promotes expression of immune stimulatory genes in macrophages and that loss of STAT5 in macrophages results in increased expression of tissue remodeling factors. Finally, we demonstrate that loss of STAT5 in macrophages promotes tumor cell migration in vitro and mammary tumor metastasis in vivo. CONCLUSIONS Breast cancer cells produce soluble factors, such as GM-CSF, that activate the STAT5 pathway in macrophages and drive expression of inflammatory factors. STAT5 deletion in myeloid cells enhances metastasis, suggesting that STAT5 activation in tumor-associated macrophages protects against tumor progression. Understanding mechanisms that drive macrophage function in the tumor microenvironment will ultimately lead to new approaches that suppress tumor-promoting functions while enhancing their anti-tumor functions.
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Affiliation(s)
- Emily A Jesser
- Microbiology, Immunology and Cancer Biology Graduate Program, University of Minnesota, Minneapolis, MN, USA
| | - Nicholas J Brady
- Microbiology, Immunology and Cancer Biology Graduate Program, University of Minnesota, Minneapolis, MN, USA
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Danielle N Huggins
- Department of Laboratory Medicine and Pathology, 6Th St SE, University of Minnesota, Minneapolis, MN, USA
| | - Patrice M Witschen
- Comparative and Molecular Biosciences Graduate Program, University of Minnesota, Minneapolis, USA
| | - Christine H O'Connor
- Department of Laboratory Medicine and Pathology, 6Th St SE, University of Minnesota, Minneapolis, MN, USA
- University of Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, MN, USA
| | - Kathryn L Schwertfeger
- Department of Laboratory Medicine and Pathology, 6Th St SE, University of Minnesota, Minneapolis, MN, USA.
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA.
- Center for Immunology, University of Minnesota, Minneapolis, USA.
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Comità S, Femmino S, Thairi C, Alloatti G, Boengler K, Pagliaro P, Penna C. Regulation of STAT3 and its role in cardioprotection by conditioning: focus on non-genomic roles targeting mitochondrial function. Basic Res Cardiol 2021; 116:56. [PMID: 34642818 PMCID: PMC8510947 DOI: 10.1007/s00395-021-00898-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 09/23/2021] [Accepted: 09/27/2021] [Indexed: 12/11/2022]
Abstract
Ischemia–reperfusion injury (IRI) is one of the biggest challenges for cardiovascular researchers given the huge death toll caused by myocardial ischemic disease. Cardioprotective conditioning strategies, namely pre- and post-conditioning maneuvers, represent the most important strategies for stimulating pro-survival pathways essential to preserve cardiac health. Conditioning maneuvers have proved to be fundamental for the knowledge of the molecular basis of both IRI and cardioprotection. Among this evidence, the importance of signal transducer and activator of transcription 3 (STAT3) emerged. STAT3 is not only a transcription factor but also exhibits non-genomic pro-survival functions preserving mitochondrial function from IRI. Indeed, STAT3 is emerging as an influencer of mitochondrial function to explain the cardioprotection phenomena. Studying cardioprotection, STAT3 proved to be crucial as an element of the survivor activating factor enhancement (SAFE) pathway, which converges on mitochondria and influences their function by cross-talking with other cardioprotective pathways. Clearly there are still some functional properties of STAT3 to be discovered. Therefore, in this review, we highlight the evidence that places STAT3 as a promoter of the metabolic network. In particular, we focus on the possible interactions of STAT3 with processes aimed at maintaining mitochondrial functions, including the regulation of the electron transport chain, the production of reactive oxygen species, the homeostasis of Ca2+ and the inhibition of opening of mitochondrial permeability transition pore. Then we consider the role of STAT3 and the parallels between STA3/STAT5 in cardioprotection by conditioning, giving emphasis to the human heart and confounders.
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Affiliation(s)
- Stefano Comità
- Department of Clinical and Biological Sciences, University of Turin, Regione Gonzole 10, Orbassano, 10043, Torino, TO, Italy
| | - Saveria Femmino
- Department of Medical Sciences, University of Turin, Torino, Italy
| | - Cecilia Thairi
- Department of Clinical and Biological Sciences, University of Turin, Regione Gonzole 10, Orbassano, 10043, Torino, TO, Italy
| | | | - Kerstin Boengler
- Institute of Physiology, University of Giessen, Giessen, Germany
| | - Pasquale Pagliaro
- Department of Clinical and Biological Sciences, University of Turin, Regione Gonzole 10, Orbassano, 10043, Torino, TO, Italy.
| | - Claudia Penna
- Department of Clinical and Biological Sciences, University of Turin, Regione Gonzole 10, Orbassano, 10043, Torino, TO, Italy.
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Medina S, Bolt AM, Zhou X, Wan G, Xu H, Lauer FT, Liu KJ, Burchiel SW. Arsenite and monomethylarsonous acid disrupt erythropoiesis through combined effects on differentiation and survival pathways in early erythroid progenitors. Toxicol Lett 2021; 350:111-120. [PMID: 34274428 PMCID: PMC8487637 DOI: 10.1016/j.toxlet.2021.07.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/23/2021] [Accepted: 07/12/2021] [Indexed: 10/20/2022]
Abstract
Strong epidemiological evidence demonstrates an association between chronic arsenic exposure and anemia. We recently found that As+3 impairs erythropoiesis by disrupting the function of GATA-1; however the downstream pathways impacted by the loss of GATA-1 function have not been evaluated. Additionally, our previous findings indicate that the predominant arsenical in the bone marrow of mice exposed to As+3 in their drinking water for 30 days was MMA+3, but the impacts of this arsenical on erythorpoisis also remain largely unknown. The goal of this study was to address these critical knowledge gaps by evaluating the comparative effects of arsenite (As+3) and the As+3 metabolite, monomethyarsonous acid (MMA+3) on two critical regulatory pathways that control the differentiation and survival of early erythroid progenitor cells. We found that 500 nM As+3 and 100 and 500 nM MMA+3 suppress erythropoiesis by impairing the differentiation of early stage erythroid progenitors. The suppression of early erythroid progenitor cell development was attributed to combined effects on differentiation and survival pathways mediated by disruption of GATA-1 and STAT5. Our results show that As+3 primarily disrupted GATA-1 function; whereas, MMA+3 suppressed both GATA-1 and STAT5 activity. Collectively, these findings provide novel mechanistic insights into arsenic-induced dyserythropoiesis and suggest that MMA+3 may be more toxic than As+3 to early developing erythroid cells.
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Affiliation(s)
- Sebastian Medina
- The University of New Mexico College of Pharmacy, Department of Pharmaceutical Sciences, Albuquerque, NM, 87131, USA; New Mexico Highlands University, Department of Biology, Las Vegas, NM, 87701, USA
| | - Alicia M Bolt
- The University of New Mexico College of Pharmacy, Department of Pharmaceutical Sciences, Albuquerque, NM, 87131, USA
| | - Xixi Zhou
- The University of New Mexico College of Pharmacy, Department of Pharmaceutical Sciences, Albuquerque, NM, 87131, USA
| | - Guanghua Wan
- The University of New Mexico College of Pharmacy, Department of Pharmaceutical Sciences, Albuquerque, NM, 87131, USA
| | - Huan Xu
- East China University of Science and Technology, School of Pharmacy, Shanghai, 200237, China
| | - Fredine T Lauer
- The University of New Mexico College of Pharmacy, Department of Pharmaceutical Sciences, Albuquerque, NM, 87131, USA
| | - Ke Jian Liu
- The University of New Mexico College of Pharmacy, Department of Pharmaceutical Sciences, Albuquerque, NM, 87131, USA
| | - Scott W Burchiel
- The University of New Mexico College of Pharmacy, Department of Pharmaceutical Sciences, Albuquerque, NM, 87131, USA.
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Yin Y, Bai Y, Olivera A, Metcalfe DD. Demonstration and implications of IL-3 upregulation of CD25 expression on human mast cells. J Allergy Clin Immunol 2021; 149:1392-1401.e6. [PMID: 34506850 DOI: 10.1016/j.jaci.2021.09.003] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 08/11/2021] [Accepted: 09/01/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND CD25+ human mast cells (huMCs) have been reported in patients with monoclonal mast cell diseases and in rare association with inflammation. However, the regulation of CD25 expression on huMCs and the possible biologic consequences remain poorly understood. OBJECTIVE We sought to identify conditions that would upregulate CD25 expression on huMCs and to explore possible functional implications. METHODS huMCs were cultured from peripheral blood progenitor cells over 6 to 8 weeks. Expression of CD25 was determined by fluorescence-activated cell sorting and soluble CD25 by ELISA. Signal transducer and activator of transcription 5 (STAT5) phosphorylation induced by IL-2 in huMCs, regulatory T (Treg) cells, or in cocultured huMCs and Treg cells was examined by fluorescence-activated cell sorting. RESULTS Addition of IL-3 to CD34+ progenitors at the initiation of huMC cultures in the presence of stem cell factor and IL-6 upregulated the expression of CD25 in developing huMCs and resulted in shedding of soluble CD25 into the media. Removal of IL-3 after the first week of culture did not affect subsequent expression of CD25. Furthermore, addition of IL-3 14 days after the initiation of the culture did not induce significant CD25 expression. Treatment with anti-IL-3 antibody or the Janus kinase inhibitor tofacitinib blocked IL-3-induced CD25 upregulation. Binding of IL-2 to CD25+ huMCs did not induce STAT5 phosphorylation. However, coincubation of Treg cells with CD25+ huMCs pretreated with IL-2 was sufficient to result in STAT5 phosphorylation in Treg cells. CONCLUSIONS IL-3 promotes CD25 expression and shedding by huMCs. Although CD25+ huMCs do not respond to IL-2, they bind IL-2 and may act as a reservoir of IL-2 to then activate lymphocytes.
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Affiliation(s)
- Yuzhi Yin
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md.
| | - Yun Bai
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | - Ana Olivera
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | - Dean D Metcalfe
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
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Shin H, Han YK, Byun Y, Jeon YH, Lee KY. Lignans from Machilus thunbergii as Thymic Stromal Lymphopoietin Inhibitors. Molecules 2021; 26:4804. [PMID: 34443392 DOI: 10.3390/molecules26164804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/04/2021] [Accepted: 08/06/2021] [Indexed: 11/17/2022] Open
Abstract
Thymic stromal lymphopoietin (TSLP) plays an important role in the pathophysiology of various allergic diseases that are mediated by T helper cell type-2 (Th2) responses, including asthma and atopic dermatitis. The primary focus of this study was the identification of potent inhibitors of the TSLP signaling pathway for potential therapeutic use. The 80% methanol extract of Machilus thunbergii bark significantly inhibited the signal transducer and activator of transcription 5 (STAT5) phosphorylation in human mast cell (HMC)-1 cells. Through activity-guided isolation, three lignans (1-3) were obtained and identified as (+)-galbelgin (1), meso-dihydroguaiaretic acid (2), and machilin A (3). Among them, two lignans (1 and 2) significantly inhibited STAT5 phosphorylation and TSLP/TSLPR interaction, as determined by ELISA. Our results indicated that lignans isolated from M. thunbergii are a promising resource for the treatment of allergic diseases.
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