1
|
Assirelli E, Ciaffi J, Scorcu V, Naldi S, Brusi V, Mancarella L, Lisi L, Pignatti F, Ursini F, Neri S. PIM Kinases as Potential Biomarkers and Therapeutic Targets in Inflammatory Arthritides. Int J Mol Sci 2024; 25:3123. [PMID: 38542097 PMCID: PMC10969826 DOI: 10.3390/ijms25063123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 02/27/2024] [Accepted: 03/06/2024] [Indexed: 07/16/2024] Open
Abstract
The Proviral Integration site for the Moloney murine leukemia virus (PIM)-1 kinase and its family members (PIM-2 and PIM-3) regulate several cellular functions including survival, proliferation, and apoptosis. Recent studies showed their involvement in the pathogenesis of rheumatoid arthritis RA, while no studies are available on psoriatic arthritis (PsA) and axial spondyloarthritis (axSpA). The main objective of this study is to assess the expression of PIM kinases in inflammatory arthritides, their correlation with proinflammatory cytokines, and their variation after treatment with biologic disease-modifying anti-rheumatic drugs or JAK inhibitors. We evaluated PIM-1, -2, and -3 expression at the gene and protein level, respectively, in the peripheral blood mononuclear cells and serum of patients with RA, PsA, axSpA, and healthy individuals (CTR). All the samples showed expression of PIM-1, -2, and -3 kinases both at the gene and protein level. PIM-1 was the most expressed protein, PIM-3 the least. PIM kinase levels differed between controls and disease groups, with reduced PIM-1 protein and increased PIM-3 protein in all disease samples compared to controls. No difference was found in the expression of these molecules between the three different pathologies. PIM levels were not modified after 6 months of therapy. In conclusion, our preliminary data suggest a deregulation of the PIM pathway in inflammatory arthritides. In-depth studies on the role of PIM kinases in this field are warranted.
Collapse
Affiliation(s)
- Elisa Assirelli
- Medicine and Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (E.A.); (J.C.); (V.S.); (S.N.); (V.B.); (L.M.); (L.L.); (F.P.); (S.N.)
| | - Jacopo Ciaffi
- Medicine and Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (E.A.); (J.C.); (V.S.); (S.N.); (V.B.); (L.M.); (L.L.); (F.P.); (S.N.)
| | - Valentina Scorcu
- Medicine and Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (E.A.); (J.C.); (V.S.); (S.N.); (V.B.); (L.M.); (L.L.); (F.P.); (S.N.)
| | - Susanna Naldi
- Medicine and Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (E.A.); (J.C.); (V.S.); (S.N.); (V.B.); (L.M.); (L.L.); (F.P.); (S.N.)
| | - Veronica Brusi
- Medicine and Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (E.A.); (J.C.); (V.S.); (S.N.); (V.B.); (L.M.); (L.L.); (F.P.); (S.N.)
| | - Luana Mancarella
- Medicine and Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (E.A.); (J.C.); (V.S.); (S.N.); (V.B.); (L.M.); (L.L.); (F.P.); (S.N.)
| | - Lucia Lisi
- Medicine and Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (E.A.); (J.C.); (V.S.); (S.N.); (V.B.); (L.M.); (L.L.); (F.P.); (S.N.)
| | - Federica Pignatti
- Medicine and Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (E.A.); (J.C.); (V.S.); (S.N.); (V.B.); (L.M.); (L.L.); (F.P.); (S.N.)
| | - Francesco Ursini
- Medicine and Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (E.A.); (J.C.); (V.S.); (S.N.); (V.B.); (L.M.); (L.L.); (F.P.); (S.N.)
- Department of Biomedical and Neuromotor Sciences (DIBINEM), Alma Mater Studiorum University of Bologna, 40126 Bologna, Italy
| | - Simona Neri
- Medicine and Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (E.A.); (J.C.); (V.S.); (S.N.); (V.B.); (L.M.); (L.L.); (F.P.); (S.N.)
| |
Collapse
|
2
|
Shin MJ, Eum WS, Youn GS, Park JH, Yeo HJ, Yeo EJ, Kwon HJ, Sohn EJ, Lee LR, Kim NY, Kwon SY, Kim SM, Jung HY, Kim DS, Cho SW, Kwon OS, Kim DW, Choi SY. Protective effects of cell permeable Tat-PIM2 protein on oxidative stress induced dopaminergic neuronal cell death. Heliyon 2023; 9:e15945. [PMID: 37223703 PMCID: PMC10200856 DOI: 10.1016/j.heliyon.2023.e15945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 04/27/2023] [Accepted: 04/27/2023] [Indexed: 05/25/2023] Open
Abstract
Background Oxidative stress is considered as one of the main causes of Parkinson's disease (PD), however the exact etiology of PD is still unknown. Although it is known that Proviral Integration Moloney-2 (PIM2) promotes cell survival by its ability to inhibit formation of reactive oxygen species (ROS) in the brain, the precise functional role of PIM2 in PD has not been fully studied yet. Objective We investigated the protective effect of PIM2 against apoptosis of dopaminergic neuronal cells caused by oxidative stress-induced ROS damage by using the cell permeable Tat-PIM2 fusion protein in vitro and in vivo. Methods Transduction of Tat-PIM2 into SH-SY5Y cells and apoptotic signaling pathways were determined by Western blot analysis. Intracellular ROS production and DNA damage was confirmed by DCF-DA and TUNEL staining. Cell viability was determined by MTT assay. PD animal model was induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) and protective effects were examined using immunohistochemistry. Results Transduced Tat-PIM2 inhibited the apoptotic caspase signaling and reduced the production of ROS induced by 1-methyl-4-phenylpyridinium (MPP+) in SH-SY5Y cells. Furthermore, we confirmed that Tat-PIM2 transduced into the substantia nigra (SN) region through the blood-brain barrier and this protein protected the Tyrosine hydroxylase-positive cells by observation of immunohistostaining. Tat-PIM2 also regulated antioxidant biomolecules such as SOD1, catalase, 4-HNE, and 8-OHdG which reduce the formation of ROS in the MPTP-induced PD mouse model. Conclusion These results indicated that Tat-PIM2 markedly inhibited the loss of dopaminergic neurons by reducing ROS damage, suggesting that Tat-PIM2 might be a suitable therapeutic agent for PD.
Collapse
Affiliation(s)
- Min Jea Shin
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Won Sik Eum
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Gi Soo Youn
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Jung Hwan Park
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Hyeon Ji Yeo
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Eun Ji Yeo
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Hyun Jung Kwon
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Eun Jeong Sohn
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Lee Re Lee
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Na Yeon Kim
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Su Yeon Kwon
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Su Min Kim
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Hyo Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 34134, South Korea
| | - Duk-Soo Kim
- Department of Anatomy and BK21 FOUR Project, College of Medicine, Soonchunhyang University, Cheonan-si 31538, South Korea
| | - Sung-Woo Cho
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul 05505, South Korea
| | - Oh-Shin Kwon
- School of Life Sciences, College of Natural Sciences Kyungpook National University, Taegu 41566, South Korea
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung-Wonju National University, Gangneung 25457, South Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| |
Collapse
|
3
|
Ding J, Yang X, Huang H, Wang B. Role of PIM2 in acute lung injury induced by sepsis. Exp Ther Med 2022; 24:543. [PMID: 35978927 PMCID: PMC9366265 DOI: 10.3892/etm.2022.11480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 03/28/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
- Juncai Ding
- Department of Pediatrics, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, P.R. China
| | - Xiufang Yang
- Department of Pediatrics, Zhongshan People's Hospital Affiliated to Sun Yat‑sen University, Zhongshan, Guangdong 528403, P.R. China
| | - Huijuan Huang
- Department of Pediatrics, Zhongshan People's Hospital Affiliated to Sun Yat‑sen University, Zhongshan, Guangdong 528403, P.R. China
| | - Bo Wang
- Department of Pediatrics, Guangdong Women and Children Hospital, Guangzhou, Guangdong 511442, P.R. China
| |
Collapse
|
4
|
Liao M, Hu F, Qiu Z, Li J, Huang C, Xu Y, Cheng X. Pim-2 kinase inhibits inflammation by suppressing the mTORC1 pathway in atherosclerosis. Aging (Albany NY) 2021; 13:22412-22431. [PMID: 34547720 PMCID: PMC8507271 DOI: 10.18632/aging.203547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/07/2021] [Indexed: 01/25/2023]
Abstract
Background: Inflammatory immunity theory has raised considerable concern in the pathogenesis of atherosclerosis. Proviral integration site of murine 2 (Pim-2) kinases functions in apoptosis pathways and the anti-inflammatory response. Here, we investigated whether Pim-2 kinase inhibits atherosclerotic inflammation by suppressing the mTORC1 pathway. Methods: An atherosclerosis animal model was established by feeding ApoE -/- mice a high-fat diet. THP-1-derived macrophages were subjected to ox-LDL (50 μg/ml, 24h) conditions in vitro to mimic the in vivo conditions. Result: The protein expression of Pim-2 was upregulated in ox-LDL-treated THP-1-derived macrophages and an atherosclerotic mouse model. Additionally, ox-LDL upregulated the protein expression of p-mTOR, p-S6K1 and p-4EBP1, intracellular lipid droplets, free cholesterol and cholesterylester and the mRNA expression of inflammatory cytokines, including IL-6, MCP-1, TLR-4 and TNF-α, in THP-1-derived macrophages. Functionally, overexpressed Pim-2 (Pim-2 OE) attenuated atherosclerotic inflammation associated with the mTORC1 signaling pathway in vitro and in vivo, whereas knocked down Pim-2 (Pim-2 KD) markedly promoted atherosclerotic inflammation associated with upregulation of the mTORC1 signaling pathway. The plaque areas and lesions in the whole aorta and aortic root sections were alleviated in ApoE -/- mice with Pim-2 OE, but aggravated by Pim-2 KD. Additionally, an mTOR agonist (MHY1485) counteracted the anti-inflammatory effect of Pim-2 in ox-LDL-treated THP-1-derived macrophages after Pim-2 OE, whereas rapamycin rescued atherosclerotic inflammation in ox-LDL-treated THP-1-derived macrophages after Pim-2 KD. Furthermore, si-mTOR and si-Raptor alleviated the atherosclerotic proinflammatory effect in ox-LDL-treated THP-1-derived macrophages in a the background of Pim-2 KD. Conclusions:These results indicated that Pim-2 kinase inhibits atherosclerotic inflammation by suppressing the mTORC1 pathway.
Collapse
Affiliation(s)
- Minqi Liao
- The Department of Cardiovascular Medicine, The Affiliated Dongguan Hospital of Southern Medical University, Dongguan, Guangdong, China
| | - Feng Hu
- The Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Zhiqiang Qiu
- The Department of Orthopedics, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Juan Li
- The College of Pharmacy, Nanchang University, Nanchang, Jiangxi, China
| | - Chahua Huang
- The Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yan Xu
- The Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xiaoshu Cheng
- The Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| |
Collapse
|
5
|
Korotkyi O, Dvorshchenko K, Kot L. Oxidative/antioxidant balance and matrix metalloproteinases level in the knee cartilage of rats under experimental osteoarthritis and probiotic administration. UKRAINIAN BIOCHEMICAL JOURNAL 2020. [DOI: 10.15407/ubj92.06.126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
|
6
|
Ha YJ, Choi YS, Han DW, Kang EH, Yoo IS, Kim JH, Kang SW, Lee EY, Song YW, Lee YJ. PIM-1 kinase is a novel regulator of proinflammatory cytokine-mediated responses in rheumatoid arthritis fibroblast-like synoviocytes. Rheumatology (Oxford) 2018; 58:154-164. [DOI: 10.1093/rheumatology/key261] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Indexed: 12/27/2022] Open
Affiliation(s)
- You-Jung Ha
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yong Seok Choi
- Medical Science Research Institute, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dong Woo Han
- Department of Translational Medicine, College of Medicine, Seoul National University, Seoul, Korea
| | - Eun Ha Kang
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - In Seol Yoo
- Daejeon Rheumatoid & Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, Korea
| | - Jin Hyun Kim
- Daejeon Rheumatoid & Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, Korea
| | - Seong Wook Kang
- Daejeon Rheumatoid & Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, Korea
| | - Eun Young Lee
- Department of Internal Medicine, Medical Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Yeong Wook Song
- Department of Internal Medicine, Medical Research Institute, Seoul National University College of Medicine, Seoul, Korea
- WCU Department of Molecular Medicine and Biopharmaceutical Sciences, Medical Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Yun Jong Lee
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Translational Medicine, College of Medicine, Seoul National University, Seoul, Korea
- Department of Internal Medicine, Medical Research Institute, Seoul National University College of Medicine, Seoul, Korea
| |
Collapse
|
7
|
Xia ZB, Meng FR, Fang YX, Wu X, Zhang CW, Liu Y, Liu D, Li GQ, Feng FB, Qiu HY. Inhibition of NF-κB signaling pathway induces apoptosis and suppresses proliferation and angiogenesis of human fibroblast-like synovial cells in rheumatoid arthritis. Medicine (Baltimore) 2018; 97:e10920. [PMID: 29879032 PMCID: PMC5999456 DOI: 10.1097/md.0000000000010920] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) is the most common inflammatory arthritis and is a major cause of disability. The nuclear factor-kappa-light-chain-enhancer of activated B cells (NF-κB) signaling pathway has been reported to be involved in the pathogenesis of RA with unclear mechanisms. Therefore, this study aims to explore the effect of NF-κB pathway on proliferation, apoptosis, and angiogenesis of human fibroblast-like synovial cells (HFLS) in RA. METHODS Normal HFLS and RA-HFLS were selected as the normal and control groups, respectively. RA-HFLS were treated by BAY11-7082 (an inhibitor of NF-κB) in different concentrations, namely 2.5 μmol/L BAY11-7082, 5 μmol/LBAY11-7082 and 10 μmol/L BAY11-7082. MTT assay was employed to detect cell proliferation. Cell apoptosis was determined by flow cytometry at 24, 48, and 72 hours after culture. Western blot analysis was employed to detect the expressions of NF-κB, angiogenesis-related factors (VEGF, Ang1, and Ang2). RESULTS Initially, we found that BAY11-7082 inhibited NF-κB expression in a concentration-dependent manner. According to the findings of MTT assay and flow cytometry, we understood that RA-HFLS treated by BAY11-7082 (an inhibitor of NF-κB), the inhibition of NF-κB pathway, suppressed RA-HFLS proliferation and induced RA-HFLS apoptosis in a concentration and time-dependent manner. Furthermore, RA-HFLS treated by BAY11-7082 presented decreased VEGF, Ang1 and Ang2 expressions in a concentration-dependent manner. CONCLUSION The study concluded that inhibition of NF-κB pathway induced cell apoptosis and suppressed proliferation and angiogenesis of RA-HFLS, which could serve as a novel target in the treatment of RA.
Collapse
Affiliation(s)
- Zhong-Bin Xia
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
| | - Fan-Ru Meng
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
- Clinical Medical College, Dalian Medical University, Dalian
| | - Yu-Xuan Fang
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
- Clinical Medical College, Dalian Medical University, Dalian
| | - Xia Wu
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
- Clinical Medical College, Dalian Medical University, Dalian
| | - Chun-Wang Zhang
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
- Clinical Medical College, Dalian Medical University, Dalian
| | - Ying Liu
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
- Clinical Medical College, Dalian Medical University, Dalian
| | - Dan Liu
- Department of Pathology, Northern Jiangsu People's Hospital Affiliated to Yangzhou University, Yangzhou, PR China
| | - Guo-Qing Li
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
| | - Fan-Bo Feng
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
| | - Hai-Yang Qiu
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
| |
Collapse
|
8
|
Du W, Chen T, Ni Y, Hou X, Yu Y, Zhou Q, Wu F, Tang W, Shi G. Role of PIM2 in allergic asthma. Mol Med Rep 2017; 16:7504-7512. [PMID: 28944837 PMCID: PMC5865883 DOI: 10.3892/mmr.2017.7499] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 07/21/2017] [Indexed: 01/11/2023] Open
Abstract
T cell-associated inflammation, particularly type 2 inflammation, has an important role in asthma pathogenesis, which is suppressed by regulatory T cells (Tregs). Proviral integration site for Moloney murine leukemia virus 2 (PIM2), a member off the serine/threonine kinase family, promotes the growth and survival of T cells and influences the function of Treg cells. However, whether PIM2 affects asthma pathogenesis remains unclear. Peripheral blood mononuclear cells and Treg cells from asthmatic and healthy subjects were obtained, and the expression level of PIM2 was measured by reverse transcription-quantitative polymerase chain reaction and immunocytochemistry. In addition, BALB/c female mice sensitized and challenged by ovalbumin were used as an asthma model, and PIM2 inhibitor was injected during the challenge period to observe the effect of PIM2 on asthma. The asthma symptoms were recorded, and airway hyper-responsiveness (AHR), expression levels of cytokines in the serum or bronchoalveolar lavage fluid (BALF), and the number of BALF leukocytes were evaluated. In addition, hematoxylin and eosin staining and immunohistochemistry of lung tissues was performed. The results demonstrated that PIM2 was overexpressed in patients with asthma in natural Treg cells. Inhibition of PIM2 attenuated asthma symptoms, and improved AHR and airway inflammation compared with asthmatic mice without inhibition of PIM2. In addition, expression levels of interleukin (IL)-10 and forkhead box protein 3 (FOXP3) in BALF were increased following PIM2 inhibition (IL-10, 470.3±21.78 vs. 533.7±25.55 pg/ml, P<0.05; FOXP3, 259±4.68 vs. 279.3±3.68 pg/ml; asthma and PIM2 inhibition groups, respectively; P<0.05). In conclusion, PIM2 may exhibit an important role in asthma pathogenesis and exacerbate AHR, airway inflammation and asthma symptoms. These effects of PIM2 may be dependent on Treg cells and the secretion of IL-10 by Tregs. The results of the present study suggest that PIM2 may be a potential target molecule for asthma treatment.
Collapse
Affiliation(s)
- Wei Du
- Department of Pulmonary Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, P.R. China
| | - Tiantian Chen
- Department of Pulmonary Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, P.R. China
| | - Yingmeng Ni
- Department of Pulmonary Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, P.R. China
| | - Xiaoxia Hou
- Department of Pulmonary Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, P.R. China
| | - Youchao Yu
- Department of Pulmonary Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, P.R. China
| | - Qi Zhou
- Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Orthopedics and Traumatology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, P.R. China
| | - Fang Wu
- Department of Geratology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, P.R. China
| | - Wei Tang
- Department of Pulmonary Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, P.R. China
| | - Guochao Shi
- Department of Pulmonary Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, P.R. China
| |
Collapse
|
9
|
DEPTOR-mTOR Signaling Is Critical for Lipid Metabolism and Inflammation Homeostasis of Lymphocytes in Human PBMC Culture. J Immunol Res 2017; 2017:5252840. [PMID: 28349073 PMCID: PMC5350400 DOI: 10.1155/2017/5252840] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 02/02/2017] [Indexed: 02/06/2023] Open
Abstract
Abnormal immune response of the body against substances and tissues causes autoimmune diseases, such as polymyositis, dermatomyositis, and rheumatoid arthritis. Irregular lipid metabolism and inflammation may be a significant cause of autoimmune diseases. Although much progress has been made, mechanisms of initiation and proceeding of metabolic and inflammatory regulation in autoimmune disease have not been well-defined. And novel markers for the detection and therapy of autoimmune disease are urgent. mTOR signaling is a central regulator of extracellular metabolic and inflammatory processes, while DEP domain-containing mTOR-interacting protein (DEPTOR) is a natural inhibitor of mTOR. Here, we report that overexpression of DEPTOR reduces mTORC1 activity in lymphocytes of human peripheral blood mononuclear cells (PBMCs). Combination of DEPTOR overexpression and mTORC2/AKT inhibitors effectively inhibits lipogenesis and inflammation in lymphocytes of PBMC culture. Moreover, DEPTOR knockdown activates mTORC1 and increases lipogenesis and inflammations. Our findings provide a deep insight into the relationship between lipid metabolism and inflammations via DEPTOR-mTOR pathway and imply that DEPTOR-mTOR in lymphocytes of PBMC culture has the potential to be as biomarkers for the detection and therapies of autoimmune diseases.
Collapse
|
10
|
Identification of Palmitoleic Acid Controlled by mTOR Signaling as a Biomarker of Polymyositis. J Immunol Res 2017; 2017:3262384. [PMID: 28194428 PMCID: PMC5282408 DOI: 10.1155/2017/3262384] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/04/2016] [Accepted: 12/04/2016] [Indexed: 02/05/2023] Open
Abstract
Polymyositis (PM) is a chronic disease characterized by muscle pain, weakness, and increase in muscle-related enzymes, accompanied with inflammations in lymphocytes. However, it is not well understood how the molecular alternations in lymphocytes contribute to the development of polymyositis. The mechanistic target of rapamycin (mTOR) signaling is the central regulator of metabolism and inflammation in mammalian cells. Based on previous studies, we proposed that mTOR signaling may control inflammatory reactions via lipid metabolism. In this study, we aim to figure out the role of mTOR signaling in the development of polymyositis and identify novel biomarkers for the detection and therapy of polymyositis. After screening and validation, we found that palmitoleic acid, a monounsaturated fatty acid, is highly regulated by mTOR signaling. Inhibition of mTORC1 activity decreases palmitoleic acid level. Moreover, mTORC1 regulates the level of palmitoleic acid by controlling its de novo synthesis. Importantly, increased palmitoleic acid has been proven to be a marker of polymyositis. Our work identifies palmitoleic acid in peripheral blood mononuclear cells (PBMC) as a biomarker of polymyositis and offers new targets to the clinical therapy.
Collapse
|