1
|
Guo D, Xiong H, Yang Z, Zhang R, Shi P, Yao Y, Liu M, Xu C, Wang QK. Lysosomal membrane protein TMEM106B modulates hematopoietic stem and progenitor cell proliferation and differentiation by regulating LAMP2A stability. FASEB J 2024; 38:e23870. [PMID: 39120151 DOI: 10.1096/fj.202400727r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 07/04/2024] [Accepted: 07/26/2024] [Indexed: 08/10/2024]
Abstract
Hematopoietic stem and progenitor cells (HSPCs) are successfully employed for hematological transplantations, and impaired HSPC function causes hematological diseases and aging. HSPCs maintain the lifelong homeostasis of blood and immune cells through continuous self-renewal and maintenance of the multilineage differentiation potential. TMEM106B is a transmembrane protein localized on lysosomal membranes and associated with neurodegenerative and cardiovascular diseases; however, its roles in HSPCs and hematopoiesis are unknown. Here, we established tmem106bb-/- knockout (KO) zebrafish and showed that tmem106bb KO reduced the proliferation of HSPCs during definitive hematopoiesis. The differentiation potential of HSPCs to lymphoid lineage was reduced, whereas the myeloid and erythroid differentiation potentials of HPSCs were increased in tmem106bb-/- zebrafish. Similar results were obtained with morpholino knockdown of tmem106bb. Mechanistically, TMEM106B interacted with LAMP2A, the lysosomal associated membrane protein 2A, impaired LAMP2A-Cathepsin A interaction, and enhanced LAMP2A stability; tmem106bb KO or TMEM106B knockdown caused LAMP2A degradation and impairment of chaperone-mediated autophagy (CMA). Knockdown of lamp2a caused similar phenotypes to that in tmem106bb-/- zebrafish, and overexpression of lamp2a rescued the impaired phenotypes of HSPCs in tmem106bb-/- embryos. These results uncover a novel molecular mechanism for the maintenance of HSPC proliferation and differentiation through stabilizing LAMP2A via TMEM106B-LAMP2A interaction.
Collapse
Affiliation(s)
- Di Guo
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Maternal and Child Health Hospital of Hubei Province, Women and Children's Hospital of Hubei Province, Huazhong University of Science and Technology, Wuhan, Hubei, P. R. China
| | - Hongbo Xiong
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Maternal and Child Health Hospital of Hubei Province, Women and Children's Hospital of Hubei Province, Huazhong University of Science and Technology, Wuhan, Hubei, P. R. China
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Zhongcheng Yang
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Maternal and Child Health Hospital of Hubei Province, Women and Children's Hospital of Hubei Province, Huazhong University of Science and Technology, Wuhan, Hubei, P. R. China
| | - Rui Zhang
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Maternal and Child Health Hospital of Hubei Province, Women and Children's Hospital of Hubei Province, Huazhong University of Science and Technology, Wuhan, Hubei, P. R. China
| | - Pengcheng Shi
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Maternal and Child Health Hospital of Hubei Province, Women and Children's Hospital of Hubei Province, Huazhong University of Science and Technology, Wuhan, Hubei, P. R. China
| | - Yufeng Yao
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Maternal and Child Health Hospital of Hubei Province, Women and Children's Hospital of Hubei Province, Huazhong University of Science and Technology, Wuhan, Hubei, P. R. China
| | - Mugen Liu
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Maternal and Child Health Hospital of Hubei Province, Women and Children's Hospital of Hubei Province, Huazhong University of Science and Technology, Wuhan, Hubei, P. R. China
| | - Chengqi Xu
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Maternal and Child Health Hospital of Hubei Province, Women and Children's Hospital of Hubei Province, Huazhong University of Science and Technology, Wuhan, Hubei, P. R. China
- Institute of Medical Genomics and School of Biomedical Sciences, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, Shandong, P. R. China
| | - Qing K Wang
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Maternal and Child Health Hospital of Hubei Province, Women and Children's Hospital of Hubei Province, Huazhong University of Science and Technology, Wuhan, Hubei, P. R. China
- Institute of Medical Genomics and School of Biomedical Sciences, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, Shandong, P. R. China
| |
Collapse
|
2
|
Takahashi T, Takahashi T, Ikawa T, Terui H, Takahashi T, Segawa Y, Sumida H, Yoshizaki A, Sato S, Asano Y. Serum levels of AGGF1: Potential association with cutaneous and cardiopulmonary involvements in systemic sclerosis. J Dermatol 2024; 51:1083-1090. [PMID: 38619119 DOI: 10.1111/1346-8138.17233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/09/2024] [Accepted: 03/31/2024] [Indexed: 04/16/2024]
Abstract
Systemic sclerosis (SSc) is an autoimmune disease characterized by vasculopathy, aberrant immune activation, and extensive tissue fibrosis of the skin and internal organs. Because of the complicated nature of its pathogenesis, the underlying mechanisms of SSc remain incompletely understood. Angiogenic factor with a G-patch domain and a Forkhead-associated domain 1 (AGGF1) is a critical factor in angiogenesis expressed on vascular endothelial cells, associated with inflammatory and fibrotic responses. To elucidate the possible implication of AGGF1 in SSc pathogenesis, we investigated the association between serum AGGF1 levels and clinical manifestations in SSc patients. We conducted a cross-sectional analysis of AGGF1 levels in sera from 60 SSc patients and 19 healthy controls with enzyme-linked immunosorbent assay. Serum AGGF1 levels in SSc patients were significantly higher than those in healthy individuals. In particular, diffuse cutaneous SSc patients with shorter disease duration had higher levels compared to those with longer disease duration and limited cutaneous SSc patients. Patients with higher serum AGGF1 levels had a higher incidence of digital ulcers, higher modified Rodnan Skin Scores (mRSS), elevated serum Krebs von den Lungen-6 (KL-6) levels, C-reactive protein levels, and right ventricular systolic pressures (RVSP) on the echocardiogram, whereas they had reduced percentage of vital capacity (%VC) and percentage of diffusing capacity of the lungs for carbon monoxide (%DLCO) in pulmonary functional tests. In line, serum AGGF1 levels were significantly correlated with mRSS, serum KL-6 and surfactant protein D levels, RVSP, and %DLCO. These results uncovered notable correlations between serum AGGF1 levels and key cutaneous and vascular involvements in SSc, suggesting potential roles of AGGF1 in SSc pathogenesis.
Collapse
Affiliation(s)
- Takuya Takahashi
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takehiro Takahashi
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tetsuya Ikawa
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hitoshi Terui
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Toshiya Takahashi
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yuichiro Segawa
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hayakazu Sumida
- Department of Dermatology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
- Scleroderma Center, The University of Tokyo Hospital, Tokyo, Japan
| | - Ayumi Yoshizaki
- Department of Dermatology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Shinichi Sato
- Department of Dermatology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Yoshihide Asano
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| |
Collapse
|
3
|
Wu Y, Yao X, Shi X, Xu Z, Ren J, Shi M, Li M, Liu J, Du X. Myeloma extracellular vesicle-derived RAGE increases inflammatory responses and myotube atrophy in multiple myeloma through activation of the TLR4/NF-κB p65 pathway. Apoptosis 2024; 29:849-864. [PMID: 38117373 DOI: 10.1007/s10495-023-01920-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2023] [Indexed: 12/21/2023]
Abstract
Sarcopenia manifests as muscle atrophy and loss that is complicated with malignancy. This study explored the mechanism of extracellular vesicles (EVs) in multiple myeloma (MM) with sarcopenia. SP2/0 conditioned medium (CM) was collected to isolate SP2/0-EVs. C2C12 cells were incubated with SP2/0 CM or SP2/0-EVs. ROS, TNF-α, IL-6, MuRF1 and MyHC levels were detected by DCF-DA fluorescent probe, ELISA, and Western blot. GW4869 was used to inhibit EV secretion in SP2/0 to confirm its effect on muscle atrophy. Serum was collected from MM patients with or without sarcopenia to detect RAGE mRNA expression. SP2/0 cells were transfected with RAGE siRNA and C2C12 cells were treated with the isolated si-RAGE-EVs or/and TLR4 agonist. SP2/0 tumor-bearing mouse model was established. Healthy mice and SP2/0-tumor bearing mice were treated with SP2/0-EVs or si-RAGE-EVs. SP2/0 CM or SP2/0-EVs stimulated ROS, inflammatory responses, and myotube atrophy in C2C12 cells. GW4869 blocked EV secretion and the effects of SP2/0 CM. RAGE mRNA expression in serum EVs was increased in MM&Sarcopenia patients and RAGE knockdown in SP2/0-EVs partially nullified SP2/0-EVs' effects. SP2/0-EVs activated the TLR4/NF-κB p65 pathway by translocating RAGE. SP2/0-EVs-derived RAGE elevated ROS production, inflammation, and myotube atrophy in C2C12 cells and caused muscle loss in SP2/0 tumor-bearing mice by activating the TLR4/NF-κB p65 pathway. SP2/0-EVs partially recapitulated muscle loss in healthy mice. SP2/0-EVs-derived RAGE increased ROS production, inflammation, and myotube atrophy in MM through TLR4/NF-κB p65 pathway activation.
Collapse
Affiliation(s)
- Yue Wu
- Department of Orthopedics, Beijing Chao-Yang Hospital, Beijing, China
| | - Xingchen Yao
- Department of Orthopedics, Beijing Chao-Yang Hospital, Beijing, China
| | - Xiangjun Shi
- Department of Orthopedics, Beijing Chao-Yang Hospital, Beijing, China
| | - Ziyu Xu
- Department of Orthopedics, Beijing Chao-Yang Hospital, Beijing, China
| | - Jie Ren
- Department of Orthopedics, Beijing Chao-Yang Hospital, Beijing, China
| | - Ming Shi
- Department of Orthopedics, Beijing Chao-Yang Hospital, Beijing, China
| | - Meng Li
- Department of Orthopedics, Beijing Chao-Yang Hospital, Beijing, China
| | - Junpeng Liu
- Department of Orthopedics, Beijing Chao-Yang Hospital, Beijing, China
| | - Xinru Du
- Department of Orthopedics, Beijing Chao-Yang Hospital, Beijing, China.
- Beijing Chao-Yang Hospital, No.8 Gongti South Rd, Chaoyang District, 100020, Beijing, China.
| |
Collapse
|