1
|
A Novel 5-Methylcytosine- and Immune-Related Prognostic Signature Is a Potential Marker of Idiopathic Pulmonary Fibrosis. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:1685384. [PMID: 36262873 PMCID: PMC9574547 DOI: 10.1155/2022/1685384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 07/15/2022] [Accepted: 09/06/2022] [Indexed: 11/18/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is the most common and highly lethal pulmonary interstitial lung disease. The current study is aimed at investigating reliable markers suitable for the treatment and identification of IPF. This study constructed the first 5-methylcytosine- (m5C-) and immune-related prognostic signature (m5CPS) based on coexpressed genes of m5C regulatory genes and immune-related genes. The m5CPS was established using the training cohort (n = 68) and verified using the test (n = 44) and validation (n = 64) cohorts. The area under the curve (AUC) values were utilized to evaluate the accuracy of m5CPS in predicting the survival of IPF patients. The Kaplan-Meier curves and Cox regression analyses were used to assess the prognostic effect of m5CPS. The AUC was utilized to evaluate the reliability of m5CPS in distinguishing IPF patients from healthy individuals. In terms of the results, m5CPS could predict the one-, three-, and five-year survival rates of IPF patients with high accuracy (AUC = .803–.973). In fact, m5CPS is not only an independent indicator of the poor prognosis of IPF patients (hazard ratio > 1; p < .05) but can also distinguish IPF patients from healthy individuals (AUC = .862). Also, m5CPS may affect the immune response and inflammatory response, and it was positively associated with the infiltration levels of active mast cells (p < .05). In sum, the current study establishes a novel m5CPS for IPF and reveals the role of m5CPS as a reliable marker for predicting the prognosis and disease status of IPF patients.
Collapse
|
2
|
Liu W, Di Q, Li K, Li J, Ma N, Huang Z, Chen J, Zhang S, Zhang W, Zhang Y. The synergistic role of Pu.1 and Fms in zebrafish osteoclast-reducing osteopetrosis and possible therapeutic strategies. J Genet Genomics 2020; 47:535-546. [PMID: 33184003 DOI: 10.1016/j.jgg.2020.09.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 08/19/2020] [Accepted: 09/01/2020] [Indexed: 12/31/2022]
Abstract
Osteoclasts are bone resorption cells of myeloid origin. Osteoclast defects can lead to osteopetrosis, a genetic disorder characterized by bone sclerosis for which there is no effective drug treatment. It is known that Pu.1 and Fms are key regulators in myelopoiesis, and their defects in mice can lead to reduced osteoclast numbers and consequent osteopetrosis. Yet how Pu.1 and Fms genetically interact in the development of osteoclasts and the pathogenesis of osteopetrosis is still unclear. Here, we characterized pu.1G242D;fmsj4e1 double-deficient zebrafish, which exhibited a greater deficiency of functional osteoclasts and displayed more severe osteopetrotic symptoms than the pu.1G242D or fmsj4e1 single mutants, suggesting a synergistic function of Pu.1 and Fms in the regulation of osteoclast development. We further demonstrated that Pu.1 plays a dominant role in osteoclastogenesis, whereas Fms plays a dominant role in osteoclast maturation. Importantly, treatment with the drug retinoic acid significantly relieved the different degrees of osteopetrosis symptoms in these models by increasing the number of functional osteoclasts. Thus, we report the development of valuable animal models of osteopetrosis, and our results shed light on drug development for antiosteopetrosis therapy.
Collapse
Affiliation(s)
- Wei Liu
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Qianqian Di
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Kailun Li
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Jing Li
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Ning Ma
- Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Zhibin Huang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Jiahao Chen
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Sheng Zhang
- Department of Orthopedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Wenqing Zhang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China.
| | - Yiyue Zhang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou, 510006, China.
| |
Collapse
|
3
|
Wang S, Liu Z, Wang J, Wang Y, Liu J, Ji X, Wang X. The triptolide-induced apoptosis of osteoclast precursor by degradation of cIAP2 and treatment of rheumatoid arthritis of TNF-transgenic mice. Phytother Res 2018; 33:342-349. [PMID: 30417444 DOI: 10.1002/ptr.6224] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 09/10/2018] [Accepted: 10/09/2018] [Indexed: 01/03/2023]
Abstract
This study aims to discuss the effect of triptolide (TPL) on rheumatoid arthritis (RA) and the mechanism related to osteoclast precursor (OCP) and osteoclast (OC). TNF-transgenic RA mice were treated with different doses of TPL by gavage. After the administration was finished, the curative effects were evaluated and compared, and the OCP apoptosis rates, the OC number, and the OC differentiation ability in vitro were detected. Finally, splenocytes of wild-type mice were cultured in vitro and induced to differentiate into OCP, and the cell apoptosis rate, cIAP2, and apoptotic effectors expression level were detected after cIAP2 overexpression and TPL administration. After TPL administration, the RA symptoms in the TPL groups were all better, the apoptosis rate of OCP was higher, and the amount of OC in vitro were lower than that in the control group (all P < 0.05), and all of the changes in the high-dose group were more obvious than the low-dose group. In splenocytes cells cultured in vitro, cIAP2 overexpression could decrease the apoptosis rate of OCPs and increase the OC number, and TPL treatment could down-regulate the cIAP2 and promote OCP apoptosis and OC reduction. In conclusion, TPL could induce OCP apoptosis and inhibit OC formation to effectively treat RA by mediating cIAP2 degradation.
Collapse
Affiliation(s)
- Shengli Wang
- Orthopedics Department, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Zhigang Liu
- Orthopedics Department, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Jingchun Wang
- Department of Pharmacy, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Yifei Wang
- Orthopedics Department, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Jianhua Liu
- Orthopedics Department, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Xinying Ji
- Henan International Joint Laboratory of Nuclear Protein Regulation, Henan University Medical College, Kaifeng, China
| | - Xinchun Wang
- Henan International Joint Laboratory of Nuclear Protein Regulation, Henan University Medical College, Kaifeng, China
| |
Collapse
|
4
|
Zhu X, Zeng Z, Qiu D, Chen J. Vγ9Vδ2 T cells inhibit immature dendritic cell transdifferentiation into osteoclasts through downregulation of RANK, c‑Fos and ATP6V0D2. Int J Mol Med 2018; 42:2071-2079. [PMID: 30066839 PMCID: PMC6108864 DOI: 10.3892/ijmm.2018.3791] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 07/10/2018] [Indexed: 01/16/2023] Open
Abstract
Osteoimmunological studies have revealed that T cells exert a powerful impact on the formation and activity of osteoclasts and bone remodeling. Evidence demonstrates that immature dendritic cells (iDCs) are more efficient transdifferentiating into osteoclasts (OCs) than monocytes. However, whether Vγ9Vδ2 T (γδ T) cells stimulate or inhibit iDC transdifferentiation into OCs has never been reported. The aim of the present study was to investigate the effects of γδ T cells on this transdifferentiation process. γδ T cells and iDCs were isolated from the peripheral blood of healthy volunteers separately and were co-cultured with Transwelll inserts, with γδ T cells in the upper chamber and iDCs in the lower chamber. IDCs were treated with macrophage-colony stimulating factor and receptor activator of nuclear factor-κB (RANK) ligand. Tartrate resistant acid phosphatase (TRAP) assay and dentine resorption assay were performed to detect OC formation and their resorption capacity, respectively. The mRNA expression of OCs was examined using a micro-array and real time-quantitative polymerase chain reaction to trace the changes during iDC transdifferentiation into OCs. The results demonstrated that γδ T cells significantly inhibited the generation of the TRAP-positive OCs from iDCs and their resorption capacity. The microarray analysis identified decreased expression level of Fos proto-oncogene AP-1 transcription factor subunit (c-Fos), ATPase H+ transporting V0 subunit d (ATP6V0D2) and cathepsin K when iDCs were co-cultured with γδ T cells. These genes are associated with OC differentiation, indicating that γδ T cells suppressed iDCs osteoclastogenesis by downregulation of the RANK/c-Fos/ATP6V0D2 signaling pathway. The present findings provide novel insights into the interactions between human γδ T cells and iDCs, and demonstrate that γδ T cells are capable of inhibiting OC formation and their activity via downregulation of genes associated with OC differentiation.
Collapse
Affiliation(s)
- Xiaolin Zhu
- The First Clinical Medical College of Fujian Medical University, Fuzhou, Fujian 350005, P.R. China
| | - Zhiyong Zeng
- The First Clinical Medical College of Fujian Medical University, Fuzhou, Fujian 350005, P.R. China
| | - Dongbiao Qiu
- The First Clinical Medical College of Fujian Medical University, Fuzhou, Fujian 350005, P.R. China
| | - Junmin Chen
- The First Clinical Medical College of Fujian Medical University, Fuzhou, Fujian 350005, P.R. China
| |
Collapse
|
5
|
Anti-colony-stimulating factor therapies for inflammatory and autoimmune diseases. Nat Rev Drug Discov 2016; 16:53-70. [DOI: 10.1038/nrd.2016.231] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
6
|
Park SJ, Huh JE, Shin J, Park DR, Ko R, Jin GR, Seo DH, Kim HS, Shin HI, Oh GT, Kim HS, Lee SY. Sirt6 cooperates with Blimp1 to positively regulate osteoclast differentiation. Sci Rep 2016; 6:26186. [PMID: 27189179 PMCID: PMC4870620 DOI: 10.1038/srep26186] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 04/27/2016] [Indexed: 01/06/2023] Open
Abstract
Global deletion of the gene encoding a nuclear histone deacetylase sirtuin 6 (Sirt6) in mice leads to osteopenia with a low bone turnover due to impaired bone formation. But whether Sirt6 regulates osteoclast differentiation is less clear. Here we show that Sirt6 functions as a transcriptional regulator to directly repress anti-osteoclastogenic gene expression. Targeted ablation of Sirt6 in hematopoietic cells including osteoclast precursors resulted in increased bone volume caused by a decreased number of osteoclasts. Overexpression of Sirt6 led to an increase in osteoclast formation, and Sirt6-deficient osteoclast precursor cells did not undergo osteoclast differentiation efficiently. Moreover, we showed that Sirt6, induced by RANKL-dependent NFATc1 expression, forms a complex with B lymphocyte-induced maturation protein-1 (Blimp1) to negatively regulate expression of anti-osteoclastogenic gene such as Mafb. These findings identify Sirt6 as a novel regulator of osteoclastogenesis by acting as a transcriptional repressor.
Collapse
Affiliation(s)
- So Jeong Park
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| | - Jeong-Eun Huh
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| | - Jihye Shin
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| | - Doo Ri Park
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| | - Ryeojin Ko
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| | - Gyu-Rin Jin
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea.,Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea
| | - Dong-Hyun Seo
- Department of Biomedical Engineering, College of Health Science, Institute of Medical Engineering, Yonsei University, Wonju, Korea
| | - Han-Sung Kim
- Department of Biomedical Engineering, College of Health Science, Institute of Medical Engineering, Yonsei University, Wonju, Korea
| | - Hong-In Shin
- IHBR, Department of Oral Pathology, School of Dentistry, Kyungpook National University, Daegu 700-412, Korea
| | - Goo Taeg Oh
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea
| | - Hyun Seok Kim
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea.,Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea
| | - Soo Young Lee
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| |
Collapse
|