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Li ZB, Li YZ, Sun ZP, Li WX, Xiao Z, Wang F. ZEB2 knockdown inhibits interleukin-1β-induced cartilage degradation and inflammatory response through the Wnt/β-catenin pathway in human chondrocytes. Scand J Rheumatol 2024:1-11. [PMID: 38899454 DOI: 10.1080/03009742.2024.2358594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 05/20/2024] [Indexed: 06/21/2024]
Abstract
OBJECTIVE Osteoarthritis (OA) is a degenerative disease of the joints characterized by inflammation and cartilage degeneration. Zinc finger E-box binding homeobox 2 (ZEB2) contains various function domains that interact with multiple transcription factors involved in various cellular functions. However, the function of ZEB2 in OA has not been clearly illustrated. METHOD Interleukin-1β (IL-1β) was used to establish an OA model in vitro. We quantified the ZEB2 expression in cartilage tissues from OA patients and IL-1β-induced chondrocytes through reverse transcription-quantitative polymerase chain reaction and Western blot. We then used functional assays to explore the function of ZEB2 during OA progression. RESULTS ZEB2 expression was increased in OA cartilage tissues and chondrocytes. The silencing of ZEB2 increased aggrecan and collagen II levels, and reduced the content of matrix metalloproteinase-3 (MMP-3), MMP-9, and MMP-13. ZEB2 knockdown inhibited the effects of IL-1β on the production of nitric oxide and prostaglandin E2, and the expression of inducible nitric oxide synthase and cyclooxygenase-2. ZEB2 inhibition also suppressed the levels of IL-6 and tumour necrosis factor-α, and increased the IL-10 level in IL-1β-treated cells. Mechanically, ZEB2 knockdown blocked the activation of the Wnt/β-catenin pathway in chondrocytes. CONCLUSION Knockdown of ZEB2 alleviated IL-1β-induced cartilage degradation and the inflammatory response through the Wnt/β-catenin pathway in chondrocytes.
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Affiliation(s)
- Z B Li
- Trauma Ward 2, The Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, PR China
| | - Y Z Li
- Department of Orthopedics, Shangluo Chinese Medicine Hospital, Shangluo, Shaanxi, PR China
| | - Z P Sun
- Trauma Ward 2, The Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, PR China
| | - W X Li
- Trauma Ward 2, The Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, PR China
| | - Z Xiao
- Trauma Ward 2, The Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, PR China
| | - F Wang
- Trauma Ward 2, The Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, PR China
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2
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Li X, Wang Z, Chen N. Perspective and Therapeutic Potential of the Noncoding RNA-Connexin Axis. Int J Mol Sci 2024; 25:6146. [PMID: 38892334 PMCID: PMC11173347 DOI: 10.3390/ijms25116146] [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: 04/06/2024] [Revised: 05/27/2024] [Accepted: 05/30/2024] [Indexed: 06/21/2024] Open
Abstract
Noncoding RNAs (ncRNAs) are a class of nucleotide sequences that cannot be translated into peptides. ncRNAs can function post-transcriptionally by splicing complementary sequences of mRNAs or other ncRNAs or by directly engaging in protein interactions. Over the past few decades, the pervasiveness of ncRNAs in cell physiology and their pivotal roles in various diseases have been identified. One target regulated by ncRNAs is connexin (Cx), a protein that forms gap junctions and hemichannels and facilitates intercellular molecule exchange. The aberrant expression and misdistribution of connexins have been implicated in central nervous system diseases, cardiovascular diseases, bone diseases, and cancer. Current databases and technologies have enabled researchers to identify the direct or indirect relationships between ncRNAs and connexins, thereby elucidating their correlation with diseases. In this review, we selected the literature published in the past five years concerning disorders regulated by ncRNAs via corresponding connexins. Among it, microRNAs that regulate the expression of Cx43 play a crucial role in disease development and are predominantly reviewed. The distinctive perspective of the ncRNA-Cx axis interprets pathology in an epigenetic manner and is expected to motivate research for the development of biomarkers and therapeutics.
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Affiliation(s)
| | - Zhenzhen Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China;
| | - Naihong Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China;
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Chen X, Wang W, Li H, Zhang X. Enriched environment alleviates neurological deficits via downregulation of Cx43 after experimental stroke. Brain Res 2023; 1821:148619. [PMID: 37805009 DOI: 10.1016/j.brainres.2023.148619] [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] [Received: 06/08/2023] [Revised: 09/21/2023] [Accepted: 10/04/2023] [Indexed: 10/09/2023]
Abstract
While it has been demonstrated that enriched environment (EE) can protect against cerebral ischemia/reperfusion (I/R) injury, the underlying mechanism remains largely unknown. Connexin 43 (Cx43) is a key component of gap junctions, which may mediate cell-to-cell communication in neural cells. This study aimed to investigate the neuroprotective effects of EE against cerebral I/R injury in rats by modulating Cx43. A rat model of cerebral I/R injury was established by middle cerebral artery occlusion (MCAO)/reperfusion. Rats were randomly divided into the sham, MCAO, MCAO + EE, MCAO + Gap19, and MCAO + EE + Gap19 groups. The modified neurological severity score test and Morris water maze assay were used to assess neurological deficits. The infarct volume was measured using triphenyltetrazolium chloride (TTC) staining. Neuronal survival was detected by immunofluorescence. The indices of oxidative stress were determined using ELISA, and the reactive oxygen species levels were determined using a dihydroethidium probe. Cx43 and inflammation-related protein expression levels were also measured using western blotting and immunohistochemistry. EE and Gap19 treatment significantly improved neurological deficits, reduced infarct volumes, attenuated neuronal injury, and suppressed inflammatory cytokine expression and oxidative stress. Furthermore, EE and Gap19 treatment notably downregulated the expression of Cx43 and the inflammation-related pathway TLR4/MyD88/NF-κB in the ischemic penumbra. Gap19, a Cx43 inhibitor, markedly enhanced the neuroprotective effects of EE in rats with cerebral I/R injury. EE treatment protects against cerebral I/R injury in rats via Cx43 downregulation. Our findings may shed light on the mechanism underlying the protective efficacy of EE.
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Affiliation(s)
- Xiuping Chen
- Department of Rehabilitation Medicine, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Wansong Wang
- Department of Rehabilitation Medicine, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Hui Li
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Ruijin 2rd, Shanghai 200025, China.
| | - Xin Zhang
- Department of Rehabilitation Medicine, Zhongnan Hospital of Wuhan University, 169 Donghu Street, Wuhan 430071, Hubei, China.
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Chen J, Liu Z, Sun H, Liu M, Wang J, Zheng C, Cao X. MiR-203a-3p attenuates apoptosis and pyroptosis of chondrocytes by regulating the MYD88/NF-κB pathway to alleviate osteoarthritis progression. Aging (Albany NY) 2023; 15:14457-14472. [PMID: 38095638 PMCID: PMC10756106 DOI: 10.18632/aging.205373] [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] [Received: 08/16/2023] [Accepted: 11/20/2023] [Indexed: 12/21/2023]
Abstract
BACKGROUND Osteoarthritis (OA) is a degenerative joint disease that imposes a significant socioeconomic burden worldwide. Our previous studies revealed a down-regulation of miR-203a-3p in the knee tissues of OA patients. However, the underlying mechanism through which miR-203a-3p mediates the pathological process of OA remains unknown. Thus, we aimed to determine the effects of miR-203a-3p in the progression of OA. METHODS Rat primary chondrocytes were stimulated with 10 μg/mL lipopolysaccharide (LPS) for 24 hours, followed by transfection with 50 nM miR-203a-3p mimic, inhibitor, and siRNA for MYD88 or consistent negative controls for 48 hours. To evaluate the effects of miR-203a-3p on cartilage matrix degradation, oxidative stress, apoptosis, and pyroptosis in chondrocytes, various techniques such as immunofluorescence staining, biochemical analysis, Western blotting, and the TUNEL staining were utilized. In the rat OA model, all rats were randomly divided into four groups: Sham, OA, OA+Agomir negative control (NC), and OA+Agomir. They received intra-articular injections of 25 nmol miR-203a-3p agomir, agomir NC, or normal saline twice a week for the duration of 8 weeks after OA induction. Immunofluorescence staining was performed to evaluate the effects of miR-203a-3p on cartilage matrix degradation in rats. RESULTS MiR-203a-3p was down-regulated in LPS-treated rat chondrocytes and OA cartilage, and directly targeted MYD88. Moreover, miR-203a-3p significantly inhibited LPS-induced cartilage matrix degradation, oxidative stress, apoptosis, and pyroptosis of chondrocytes via targeting MYD88. Mechanistically, miR-203a-3p exerted protective effects via the inhibition of the MYD88/NF-κB pathway. In the rat OA model, intra-articular injections of miR-203a-3p agomir also significantly inhibited cartilage matrix degradation, thereby alleviating OA progression. Furthermore, the miR-203a-3p agomir-treated arthritic rat dramatically exhibited better articular tissue morphology and lower OARSI scores. CONCLUSIONS MiR-203a-3p plays a role in alleviating the progression of OA by regulating the MYD88/NF-κB pathway, thereby inhibiting cartilage matrix degradation, oxidative stress, apoptosis, and pyroptosis of chondrocytes. It highlights the potential significance of miR-203a-3p as an important regulator of OA.
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Affiliation(s)
- Jiayi Chen
- Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Traditional Chinese Medicine, Zhongshan 528401, Guangdong, China
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, Guangdong China
| | - Zhutong Liu
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, Guangdong China
| | - He Sun
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, Guangdong China
| | - Mange Liu
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, Guangdong China
| | - Jiangliang Wang
- Liuyang Hospital of Traditional Chinese Medicine, Liuyang 410300, Hunan, China
| | - Chenxiao Zheng
- Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Traditional Chinese Medicine, Zhongshan 528401, Guangdong, China
| | - Xuewei Cao
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, Guangdong China
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Wang K, Zhang X, Li X, Li D, Shan Z, Yao C. Non-weight-bearing exercise attenuates papain-induced knee osteoarthritis in rats via the TLR4/MyD88/NF-κB signaling pathway. J Orthop Surg Res 2023; 18:695. [PMID: 37718444 PMCID: PMC10506300 DOI: 10.1186/s13018-023-04201-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/13/2023] [Indexed: 09/19/2023] Open
Abstract
BACKGROUND AND AIM Knee osteoarthritis (KOA) is characterized by joint wear and degeneration. Unfortunately, the medical community currently lacks effective treatment options for this disease. Suspension exercise therapy is considered an effective form of non-weight-bearing exercise for treating KOA. However, its mechanism of intervention in KOA is unclear. Therefore, this study aimed to evaluate the protective effects of non-weight-bearing exercise on rats with KOA and attempted to explore the underlying mechanisms. METHODS In this study, a papain-induced KOA model was constructed, and the pathological changes in cartilage tissue were observed by hematoxylin and eosin (H&E) staining and scored according to the Mankin scoring principle. The serum levels of interleukin (IL)-1β, IL-6, and tumor necrosis factor-α (TNF-α) were detected by enzyme-linked immunosorbent assay. Reverse transcription-quantitative polymerase chain reaction and Western blotting were used to detect the expression of mRNA and proteins in the TLR4/MyD88/NF-κB signaling pathway. RESULTS H&E staining and Mankin score data confirmed that non-weight-bearing exercise significantly improved articular cartilage degradation compared with that in the model group. Further, we observed that non-weight-bearing exercise differentially reduced serum levels of IL-1β, IL-6, and TNF-α. Mechanistically, non-weight-bearing exercise downregulated gene and protein expression of TLR4, MyD88, and NF-κB in cartilage tissue. CONCLUSION Non-weight-bearing exercise resulted in the progression of KOA by modulating the TLR4/MyD88/NF-κB signaling pathway and decreasing the levels of the inflammatory cytokines IL-1β, IL-6, and TNF-α to slow down the degeneration of articular cartilage.
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Affiliation(s)
- Kewen Wang
- College of Acupuncture and Massage, Anhui University of Chinese Medicine, Hefei, 230012, Anhui, China
| | - Xianji Zhang
- College of Acupuncture and Massage, Anhui University of Chinese Medicine, Hefei, 230012, Anhui, China
| | - Xin Li
- College of Acupuncture and Massage, Anhui University of Chinese Medicine, Hefei, 230012, Anhui, China
| | - Dekun Li
- College of Acupuncture and Massage, Anhui University of Chinese Medicine, Hefei, 230012, Anhui, China
| | - Ziliang Shan
- College of Acupuncture and Massage, Anhui University of Chinese Medicine, Hefei, 230012, Anhui, China
| | - Changfeng Yao
- College of Acupuncture and Massage, Anhui University of Chinese Medicine, Hefei, 230012, Anhui, China.
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Li X, Shen L, Deng Z, Huang Z. New treatment for osteoarthr: pbad014itis: Gene therapy. PRECISION CLINICAL MEDICINE 2023; 6:pbad014. [PMID: 37333626 PMCID: PMC10273835 DOI: 10.1093/pcmedi/pbad014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 05/24/2023] [Indexed: 06/20/2023] Open
Abstract
Osteoarthritis is a complex degenerative disease that affects the entire joint tissue. Currently, non-surgical treatments for osteoarthritis focus on relieving pain. While end-stage osteoarthritis can be treated with arthroplasty, the health and financial costs associated with surgery have forced the search for alternative non-surgical treatments to delay the progression of osteoarthritis and promote cartilage repair. Unlike traditional treatment, the gene therapy approach allows for long-lasting expression of therapeutic proteins at specific sites. In this review, we summarize the history of gene therapy in osteoarthritis, outlining the common expression vectors (non-viral, viral), the genes delivered (transcription factors, growth factors, inflammation-associated cytokines, non-coding RNAs) and the mode of gene delivery (direct delivery, indirect delivery). We highlight the application and development prospects of the gene editing technology CRISPR/Cas9 in osteoarthritis. Finally, we identify the current problems and possible solutions in the clinical translation of gene therapy for osteoarthritis.
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Affiliation(s)
- Xinyu Li
- Department of Orthopaedic Surgery, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Leyao Shen
- School of Dentistry, University of Michigan, Ann Arbor, MI 48109-1078, USA
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Timing Expression of miR203a-3p during OA Disease: Preliminary In Vitro Evidence. Int J Mol Sci 2023; 24:ijms24054316. [PMID: 36901745 PMCID: PMC10002134 DOI: 10.3390/ijms24054316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/12/2023] [Accepted: 02/17/2023] [Indexed: 02/25/2023] Open
Abstract
Osteoarthritis (OA) is a degenerative bone disease that involves the microenvironment and macroenvironment of joints. Progressive joint tissue degradation and loss of extracellular matrix elements, together with different grades of inflammation, are important hallmarks of OA disease. Therefore, the identification of specific biomarkers to distinguish the stages of disease becomes a primary necessity in clinical practice. To this aim, we investigated the role of miR203a-3p in OA progression starting from the evidence obtained by osteoblasts isolated from joint tissues of OA patients classified according to different Kellgren and Lawrence (KL) grading (KL ≤ 3 and KL > 3) and hMSCs treated with IL-1β. Through qRT-PCR analysis, it was found that osteoblasts (OBs) derived from the KL ≤ 3 group expressed high levels of miR203a-3p and low levels of ILs compared with those of OBs derived from the KL > 3 group. The stimulation with IL-1β improved the expression of miR203a-3p and the methylation of the IL-6 promoter gene, favoring an increase in relative protein expression. The gain and loss of function studies showed that the transfection with miR203a-3p inhibitor alone or in co-treatments with IL-1β was able to induce the expression of CX-43 and SP-1 and to modulate the expression of TAZ, in OBs derived from OA patients with KL ≤ 3 compared with KL > 3. These events, confirmed also by qRT-PCR analysis, Western blot, and ELISA assay performed on hMSCs stimulated with IL-1β, supported our hypothesis about the role of miR203a-3p in OA progression. The results suggested that during the early stage, miR203a-3p displayed a protective role reducing the inflammatory effects on CX-43, SP-1, and TAZ. During the OA progression the downregulation of miR203a-3p and consequently the upregulation of CX-43/SP-1 and TAZ expression improved the inflammatory response and the reorganization of the cytoskeleton. This role led to the subsequent stage of the disease, where the aberrant inflammatory and fibrotic responses determined the destruction of the joint.
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Huang Z, Song S, Zhang D, Bian Z, Han J. Protective effects of Tripterygium glycoside on IL-1β-induced inflammation and apoptosis of rat chondrocytes via microRNA-216a-5p/TLR4/NF-κB axis. Immunopharmacol Immunotoxicol 2023; 45:61-72. [PMID: 36052873 DOI: 10.1080/08923973.2022.2115924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND This study is designed to fill the research gap concerning the efficacy of Tripterygium glycoside (TG) on Interleukin-1β (IL-1β)-induced inflammation and injury in chondrocytes. METHODS Chondrocytes were isolated from Sprague-Dawley rats. After the treatment with IL-1β and TG and transfection, the viability and apoptosis of chondrocytes were determined via Cell Counting Kit-8 (CCK-8) assay and flow cytometry. The levels of inflammatory cytokines tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and IL-8 were determined by enzyme-linked immunosorbent assay (ELISA). Relative expression levels of potential microRNAs (miRNAs, miRs) that may target toll-like receptor 4 (TLR4), as well as apoptosis- and TLR4/nuclear factor-κB (TLR4/NF-κB) pathway-associated factors were quantified using quantitative real-time (qRT) PCR and western blot. The targeting relationship between miR-216a-5p and TLR4 was predicted by TargetScan and further confirmed by dual-luciferase reporter assay. RESULTS The viability was reduced yet the apoptosis and inflammation were promoted in IL-1β-treated chondrocytes, where upregulation of Bax, Cleaved caspase 3, TLR4, Myeloid differentiation factor 88 (MyD88), phosphorylation of P65 and IκBα yet downregulation of Bcl-2 and IκBα were evidenced. Strikingly, the above changes were reversed by TG. TG also offset the effects of IL-1β on repressing the expression of miR-216a-5p, the miRNA targeting TLR4. Additionally, TLR4 overexpression neutralized the impacts of TG upon viability, apoptosis, and TLR4 expression in IL-1β-treated chondrocytes, while all these effects induced by TLR4 overexpression could be restored by miR-216a-5p. CONCLUSIONS TG protects chondrocytes against IL-1β-induced inflammation and apoptosis via miR-216a-5p/TLR4/NF-κB axis.
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Affiliation(s)
- Zhen Huang
- Acupuncture and Massage Department, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
| | - Shuanglin Song
- Acupuncture and Massage Department, Hangzhou First People's Hospital, Hangzhou, PR China
| | - Di Zhang
- Acupuncture and Massage Department, Hangzhou First People's Hospital, Hangzhou, PR China
| | - Zhenyu Bian
- Orthopedics Department, Hangzhou First People's Hospital, Hangzhou, PR China
| | - Jinsheng Han
- Massage Department, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, PR China
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Cao Y, Li R, Du Y, Jin N, Fang T, Ma F, Jin P. miR-92b-5p negatively regulates IKK through targeting its ORF region in the innate immune responses of amphioxus (Branchiostoma belcheri). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2023; 138:104556. [PMID: 36167145 DOI: 10.1016/j.dci.2022.104556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 09/19/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
Cephalochordate (Amphioxus), situated at a key phylogenetic position in the phylum Chordata, serves as a model organism for studying the origin and evolution of the vertebrate innate immune. In this study, five members of precursor miR-92 family (miR-92a-1, miR-92a-2, miR-92b, miR-92c and miR-92d) are identified in Branchiostoma belcheri, and their evolutionary conservation and potential molecular functions in innate immunity are analyzed. Among them, miR-92b-5p was validated in HEK293 cells to target the coding region but not classic 3'UTR of IKK (inhibitor of nuclear factor kappa-B kinase) mRNA, one integral component of MAPK and TLR4 immune signaling. Furthermore, the spatiotemporal expression patterns of miR-92b-5p and IKK were examined in different tissues or different time points (2 h, 4 h, 8 h, 12 h, 24 h and 48 h) post LPS stimulation at RNA and protein level in vivo. The seemingly inverse expression pattern between miR-92b-5p and IKK supports the involvement of miR-92b-5p in Branchiostoma belcheri innate immune response. In conclusion, our work not only illustrates the evolutionary pattern of Branchiostoma belcheri miR-92 family across chordates, but also reveals that miR-92b-5p could target IKK expression to regulate innate immune response.
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Affiliation(s)
- Yunpeng Cao
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China.
| | - Ranting Li
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China.
| | - Yongxin Du
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China.
| | - Na Jin
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China.
| | - Tao Fang
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China.
| | - Fei Ma
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China.
| | - Ping Jin
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China.
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Janec P, Mojžíšek M, Pánek M, Haluzík M, Živný J, Janota J. Early-Onset Neonatal Sepsis: Inflammatory Biomarkers and MicroRNA as Potential Diagnostic Tools in Preterm Newborns. Folia Biol (Praha) 2023; 69:173-180. [PMID: 38583178 DOI: 10.14712/fb2023069050173] [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] [Indexed: 04/09/2024]
Abstract
Mortality and morbidity of newborns with sepsis can be improved by early and accurate diagnosis and targeted therapy. To evaluate the early molecular events associated with inflammation and infection, we evaluated markers of endothelial activation and injury and circulating plasma miRNAs in preterm newborns with sepsis. The study group consisted of newborns with gestational age ≤ 32 weeks, with culture-positive early-onset neonatal sepsis (sepsis group, N = 8), and as a control group, we enrolled newborns without sepsis (control group, N = 12). Soluble markers of inflammation were measured using Luminex-based multiplex assay. Platelet-free plasma RNA was used to construct the library for miRNA sequencing analysis. Normalized counts were calculated and used to measure differential expression of individual detected miRNAs. We found a significant increase of interleukin 18 (IL-18) in the cord blood of the sepsis group (mean ± SEM, 104.7 ± 30.4 pg/ml vs 52.7 ± 5.6 pg/ml, P = 0.02). In peripheral blood of sepsis group patients, we found a significant increase of VEGF-A compared to controls (196.0 ± 70.5 pg/ml vs 59.6 ± 8.5 pg/ml, P = 0.02). In the cord blood plasma, eight miRNAs had significantly differential expression (P < 0.05), four miRNAs were up-regulated and four miRNAs down-regulated. In peripheral blood plasma, all nine miRNAs with significant differential expression were up-regulated. In conclusion, in early-onset neonatal sepsis, IL-18 and VEGF-A might be considered in diagnostic workup. Early-onset sepsis in preterm newborns is associated with significant changes in the circulating miRNA pattern.
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Affiliation(s)
- Petr Janec
- Department of Neonatology, Masaryk Hospital Ústí nad Labem, Krajská zdravotní, Ústí nad Labem, Czech Republic
| | - Marek Mojžíšek
- Neonatal Unit, Department of Obstetrics and Gynaecology, Second Faculty of Medicine, Charles University and University Hospital Motol, Prague, Czech Republic
| | - Martin Pánek
- Department of Neonatology, Masaryk Hospital Ústí nad Labem, Krajská zdravotní, Ústí nad Labem, Czech Republic
| | - Martin Haluzík
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic
| | - Jan Živný
- Institute of Pathological Physiology, First Faculty of Medicine, Charles University, Prague, Czech Republic.
| | - Jan Janota
- Department of Neonatology, Thomayer University Hospital, Prague, Czech Republic.
- Institute of Pathological Physiology, First Faculty of Medicine, Charles University, Prague, Czech Republic.
- Neonatal Unit, Department of Obstetrics and Gynaecology, Second Faculty of Medicine, Charles University and University Hospital Motol, Prague, Czech Republic.
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Zhou H, Gan M, Jin X, Dai M, Wang Y, Lei Y, Lin Z, Ming J. miR‑382 inhibits breast cancer progression and metastasis by affecting the M2 polarization of tumor‑associated macrophages by targeting PGC‑1α. Int J Oncol 2022; 61:126. [PMID: 36069230 PMCID: PMC9477106 DOI: 10.3892/ijo.2022.5416] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 08/19/2022] [Indexed: 11/06/2022] Open
Abstract
Macrophages are principal immune cells with a high plasticity in the human body that can differentiate under different conditions in the tumor microenvironment to adopt two polarized phenotypes with opposite functions. Therefore, converting macrophages from the immunosuppressive phenotype (M2) to the inflammatory phenotype (M1) is considered a promising therapeutic strategy for cancer. However, the molecular mechanisms underlying this conversion process have not yet been completely elucidated. In recent years, microRNAs (miRNAs or miRs) have been shown to play key roles in regulating macrophage polarization through their ability to modulate gene expression. In the present study, it was found that miR‑382 expression was significantly downregulated in tumor‑associated macrophages (TAMs) and M2‑polarized macrophages in breast cancer. In vitro, macrophage polarization toward the M2 phenotype and M2‑type cytokine release were inhibited by transfection with miR‑382‑overexpressing lentivirus. Similarly, the overexpression of miR‑382 inhibited the ability of TAMs to promote the malignant behaviors of breast cancer cells. In addition, peroxisome proliferator‑activated receptor γ coactivator‑1α (PGC‑1α) was identified as the downstream target of miR‑382 and it was found that PGC‑1α affected macrophage polarization by altering the metabolic status. The ectopic expression of PGC‑1α restored the phenotype and cytokine secretion of miR‑382‑overexpressing macrophages. Furthermore, PGC‑1α expression reversed the miR‑382‑induced changes in the metabolic state of TAMs and the effects of TAMs on breast cancer cells. Of note, the in vivo growth and metastasis of 4T1 cells were inhibited by miR‑382‑overexpressing TAMs. Taken together, the results of the present study suggest that miR‑382 may alter the metabolic status of macrophages by targeting PGC‑1α, thereby decreasing the proportion of TAMs with the M2 phenotype, and inhibiting the progression and metastasis of breast cancer.
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Affiliation(s)
- Hua Zhou
- Department of Breast and Thyroid Surgery, The Affiliated Shapingba Hospital of Chongqing University, Chongqing 400030, P.R. China
| | - Mingyu Gan
- Shanxi Medical University, Taiyuan, Shanxi 030607, P.R. China
| | - Xin Jin
- Department of Critical Care Medicine, The Affiliated Fuling Hospital of Chongqing University, Chongqing 408099, P.R. China
| | - Meng Dai
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Yuanyuan Wang
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Youyang Lei
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Zijing Lin
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Jia Ming
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
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12
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Zhang Y, Zhao P, Li S, Mu X, Wang H. CircSCAPER knockdown attenuates IL-1β-induced chondrocyte injury by miR-127-5p/TLR4 axis in osteoarthritis. Autoimmunity 2022; 55:577-586. [PMID: 35993243 DOI: 10.1080/08916934.2022.2103798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
PURPOSE Osteoarthritis (OA) is a chronic inflammatory degenerative disease characterized by articular cartilage degradation. Circular RNAs have been shown to play significant roles in OA process. Herein, this work aimed to investigate the potential role and mechanism of circSCAPER in OA progression. METHODS Levels of circSCAPER, miR-127-5p and toll-like receptor 4 (TLR4) were detected by qRT-PCR or western blotting. Cell apoptosis was determined by flow cytometry. The expression of Aggrecan and Matrix metallopeptidase was examined using western blot to assess extracellular matrix (ECM) degradation. Inflammatory response and oxidative stress were determined by measuring the release of inflammatory factors, along with the generation of intracellular reactive oxygen species and malondialdehyde. The interaction between miR-127-5p and circSCAPER or TLR4 was determined by dual-luciferase reporter, RNA immunoprecipitation and pull-down assays. RESULTS Chondrocytes were treated with interleukin-1β (IL-1β) to mimic OA condition in vitro. CircSCAPER was increased in OA cartilages and IL-1β-induced chondrocytes. Functionally, knockdown of circSCAPER attenuated IL-1β-evoked apoptosis, ECM degradation, inflammation and oxidative stress in vitro. CircSCAPER up-regulation in OA cartilages was discovered to be accompanied by decreased miR-127-5p and increased TLR4. Mechanistically, circSCAPER acted as a sponge for miR-127-5p to positively regulate TLR4 expression in chondrocytes. IL-1β treatment reduced miR-127-5p expression but up-regulated TLR4 expression, re-expression of miR-127-5p suppressed IL-1β-caused chondrocyte injury, which was abolished by TLR4 overexpression. Moreover, miR-127-5p inhibition reversed the protective action of circSCAPER knockdown on chondrocytes under IL-1β treatment. CONCLUSION CircSCAPER silencing protected against IL-1β-induced apoptosis, ECM degradation, inflammation and oxidative stress in chondrocytes via miR-127-5p/TLR4 axis.
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Affiliation(s)
- Yuchang Zhang
- Department of Orthopedics, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, China
| | - Ping Zhao
- Department of Orthopedics, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, China
| | - Sen Li
- Department of Orthopedics, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, China
| | - Xiangqian Mu
- Department of Orthopedics, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, China
| | - Huaqi Wang
- Department of Orthopedics, Ankang Traditional Chinese Medicine Hospital, Ankang, China
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13
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Chou WC, Tsai KL, Hsieh PL, Wu CH, Jou IM, Tu YK, Ma CH. Galectin-3 facilitates inflammation and apoptosis in chondrocytes through upregulation of the TLR-4-mediated oxidative stress pathway in TC28a2 human chondrocyte cells. ENVIRONMENTAL TOXICOLOGY 2022; 37:478-488. [PMID: 34894372 DOI: 10.1002/tox.23414] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/10/2021] [Accepted: 11/14/2021] [Indexed: 06/14/2023]
Abstract
Osteoarthritis (OA) is a common degenerative joint disease. The pathological changes of chondrocytes involve oxidative stress, the pro-inflammatory response, and pro-apoptotic events. Galectin-3 (Gal-3) is a 35 kDa protein with a special chimeric structure. Gal-3 participates in the progression of many diseases, such as cancer metastasis and heart failure. A previous study demonstrated that Gal-3 expression in human cartilage with OA is increased. However, the role of Gal-3 in chondrocyte dysfunction in joints is still unclear. In this study, we applied Gal-3 (5-20 μg/ml) to TC28a2 human chondrocyte cells for 24 h to induce chondrocyte dysfunction. We found that Gal-3 upregulated TLR-4 and MyD88 expression and NADPH oxidase, thereby increasing intracellular ROS in the chondrocytes. Gal-3 increased phosphorylated MEK1/2 and ERK levels, and promoted NF-κB activity. This activation of NF-κB was reduced by silencing TLR-4 and NOX-2. In addition, Gal-3 caused apoptosis of chondrocytes through the mitochondrial-dependent pathway via the TLR-4/NADPH oxidase/MAPK axis. Our study proves the pathogenic role of Gal-3 in Gal-3-induced chondrocyte dysfunction and injuries.
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Affiliation(s)
- Wan-Ching Chou
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Kun-Ling Tsai
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Pei-Ling Hsieh
- Department of Anatomy, School of Medicine, School of Medicine, China Medical University, Taichung, Taiwan
| | - Chin-Hsien Wu
- Department of Orthopedics, E-Da Hospital, I-Shou University, Kaohsiung City, Taiwan
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung City, Taiwan
| | - I-Ming Jou
- Department of Orthopedics, E-Da Hospital, I-Shou University, Kaohsiung City, Taiwan
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung City, Taiwan
| | - Yuan-Kun Tu
- Department of Orthopedics, E-Da Hospital, I-Shou University, Kaohsiung City, Taiwan
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung City, Taiwan
| | - Ching-Hou Ma
- Department of Orthopedics, E-Da Hospital, I-Shou University, Kaohsiung City, Taiwan
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung City, Taiwan
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14
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A review of non-coding RNA related to NF-κB signaling pathway in the pathogenesis of osteoarthritis. Int Immunopharmacol 2022; 106:108607. [PMID: 35180625 DOI: 10.1016/j.intimp.2022.108607] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 12/21/2022]
Abstract
Osteoarthritis (OA), often called as "wear and tear" arthritis, is the most common form of degenerative joint arthritis and is a leading cause of disability. The nuclear factor-kappaB (NF-κB) transcription factor has long been recognized as a disease-contributing factor for OA. More and more evidences show that targeting NF-κB signaling could offer novel potential therapeutic options for OA damage and reduce the risk of potential side-effects. In recent years, it has been shown that non-coding RNAs(ncRNAs) can trigger the expression of an array of genes and widely activate NF-κB signaling pathway, which induces destruction of the articular joint, leading to OA onset and progression. In this review, we discuss the involvement of NF-κB in OA pathogenesis and how ncRNAs attend and affect OA incidence and evolution, offering novel potential therapeutic options for OA treatment.
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15
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Kong H, Sun ML, Zhang XA, Wang XQ. Crosstalk Among circRNA/lncRNA, miRNA, and mRNA in Osteoarthritis. Front Cell Dev Biol 2022; 9:774370. [PMID: 34977024 PMCID: PMC8714905 DOI: 10.3389/fcell.2021.774370] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 11/29/2021] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA) is a joint disease that is pervasive in life, and the incidence and mortality of OA are increasing, causing many adverse effects on people's life. Therefore, it is very vital to identify new biomarkers and therapeutic targets in the clinical diagnosis and treatment of OA. ncRNA is a nonprotein-coding RNA that does not translate into proteins but participates in protein translation. At the RNA level, it can perform biological functions. Many studies have found that miRNA, lncRNA, and circRNA are closely related to the course of OA and play important regulatory roles in transcription, post-transcription, and post-translation, which can be used as biological targets for the prevention, diagnosis, and treatment of OA. In this review, we summarized and described the various roles of different types of miRNA, lncRNA, and circRNA in OA, the roles of different lncRNA/circRNA-miRNA-mRNA axis in OA, and the possible prospects of these ncRNAs in clinical application.
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Affiliation(s)
- Hui Kong
- College of Kinesiology, Shenyang Sport University, Shenyang, China
| | - Ming-Li Sun
- College of Kinesiology, Shenyang Sport University, Shenyang, China
| | - Xin-An Zhang
- College of Kinesiology, Shenyang Sport University, Shenyang, China
| | - Xue-Qiang Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China.,Department of Rehabilitation Medicine, Shanghai Shangti Orthopaedic Hospital, Shanghai, China
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16
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Ali SA, Peffers MJ, Ormseth MJ, Jurisica I, Kapoor M. The non-coding RNA interactome in joint health and disease. Nat Rev Rheumatol 2021; 17:692-705. [PMID: 34588660 DOI: 10.1038/s41584-021-00687-y] [Citation(s) in RCA: 102] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2021] [Indexed: 02/07/2023]
Abstract
Non-coding RNAs have distinct regulatory roles in the pathogenesis of joint diseases including osteoarthritis (OA) and rheumatoid arthritis (RA). As the amount of high-throughput profiling studies and mechanistic investigations of microRNAs, long non-coding RNAs and circular RNAs in joint tissues and biofluids has increased, data have emerged that suggest complex interactions among non-coding RNAs that are often overlooked as critical regulators of gene expression. Identifying these non-coding RNAs and their interactions is useful for understanding both joint health and disease. Non-coding RNAs regulate signalling pathways and biological processes that are important for normal joint development but, when dysregulated, can contribute to disease. The specific expression profiles of non-coding RNAs in various disease states support their roles as promising candidate biomarkers, mediators of pathogenic mechanisms and potential therapeutic targets. This Review synthesizes literature published in the past 2 years on the role of non-coding RNAs in OA and RA with a focus on inflammation, cell death, cell proliferation and extracellular matrix dysregulation. Research to date makes it apparent that 'non-coding' does not mean 'non-essential' and that non-coding RNAs are important parts of a complex interactome that underlies OA and RA.
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Affiliation(s)
- Shabana A Ali
- Bone and Joint Center, Department of Orthopaedic Surgery, Henry Ford Health System, Detroit, MI, USA. .,Center for Molecular Medicine and Genetics, School of Medicine, Wayne State University, Detroit, MI, USA.
| | - Mandy J Peffers
- Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK
| | - Michelle J Ormseth
- Department of Research and Development, Veterans Affairs Medical Center, Nashville, TN, USA.,Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Igor Jurisica
- Osteoarthritis Research Program, Division of Orthopaedics, Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada.,Data Science Discovery Centre for Chronic Diseases, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Mohit Kapoor
- Osteoarthritis Research Program, Division of Orthopaedics, Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada. .,Department of Surgery and Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada.
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17
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Liu S, Zhao Y, Liu H, Zhao X, Shen X. miR-301-3p directly regulates Cx43 to mediate the development of gastric cancer. J Int Med Res 2021; 49:3000605211033185. [PMID: 34590921 PMCID: PMC8489753 DOI: 10.1177/03000605211033185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 06/24/2021] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE Identifying novel biomarkers involved in the development of gastric cancer (GC) can provide potential therapeutic strategies and improve clinical prognosis. miR-301-3p and Cx43 are reportedly dysregulated in GC. miR-301-3p and Cx43 interaction, and their functions in GC progression, are still poorly understood. METHODS The expression levels of miR-301-3p and Cx43 in GC tissues and cell lines with various differentiation degrees were evaluated by RT-qPCR. The interaction between miR-301-3p and Cx43 was assessed by dual-luciferase reporter assays. CCK8 and Transwell assays were employed to assess the effects of the miR-301-3p-Cx43 axis on GC cell proliferation, migration, and invasion. RESULTS Cx43 was significantly downregulated in GC tissues and cell lines, while miR-301-3p expression was negatively correlated with Cx43 mRNA levels. The expression levels of Cx43 and miR-301-3p were closely associated with the differentiation, TNM stage, vascular invasion, and lymph node metastasis status of GC patients. Cx43 overexpression could suppress the proliferation, migration, and invasion of GC cells. Cx43 mRNA is a direct target of miR-301-3p, and transfection of an miR-301-3p mimic could reverse the inhibitory effects of Cx43. CONCLUSION The miR-301-3p-Cx43 axis is involved in the development and progression of GC by affecting the proliferation, migration, and invasion of GC cells.
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Affiliation(s)
- Shasha Liu
- Department of Pathology, Affiliated Hospital of Chengde Medical University, Hebei, 067000, China
| | - Yang Zhao
- Department of Pathology, Affiliated Hospital of Chengde Medical University, Hebei, 067000, China
| | - Huan Liu
- Department of Pathology, Affiliated Hospital of Chengde Medical University, Hebei, 067000, China
| | - Xing Zhao
- Department of Pathology, Affiliated Hospital of Chengde Medical University, Hebei, 067000, China
| | - Xingbin Shen
- Department of Pathology, Affiliated Hospital of Chengde Medical University, Hebei, 067000, China
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18
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Li S, Xie F, Shi K, Wang J, Cao Y, Li Y. Gossypol ameliorates the IL-1β-induced apoptosis and inflammation in chondrocytes by suppressing the activation of TLR4/MyD88/NF-κB pathway via downregulating CX43. Tissue Cell 2021; 73:101621. [PMID: 34534743 DOI: 10.1016/j.tice.2021.101621] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 08/06/2021] [Accepted: 08/07/2021] [Indexed: 11/25/2022]
Abstract
The effects of anti-inflammatory drug gossypol on osteoarthritis (OA) treatment were discussed in this paper. After identified using toluidine blue and immunofluorescence staining of type II collagen, chondrocytes from OA patients were treated with interleukin-1β (IL-1β), gossypol, and overexpressed connexin43 (CX43). In treated chondrocytes, according to MTT assay and flow cytometry, gossypol increased viability and reduced apoptosis of IL-1β induced chondrocytes. Enzyme linked immunosorbent assay (ELISA) suggested that gossypol downregulated inflammatory tumor necrosis factor (TNF)-α level. Quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot confirmed that gossypol downregulated CX43, nuclear factor-kappa B (NF-κB) p65, TNF-α, toll like receptor 4 (TLR4), myeloid differentiation primary response gene 88 (MyD88) and interleukin-6 (IL-6) expressions. Besides, overexpressed CX43 reversed the effects of gossypol on viability, apoptosis, and expressions of factors related to TLR4/MyD88/NF-κB pathway of IL-1β-induced chondrocytes. In conclusion, gossypol ameliorates IL-1β-induced apoptosis and inflammation in chondrocytes by suppressing TLR4/MyD88/NF-κB pathway via downregulating CX43.
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Affiliation(s)
- Sen Li
- Department of Joint Surgery, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Jianye District, Nanjing City, Jiangsu Province, 210017, China
| | - Faqing Xie
- Department of Joint Surgery, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Jianye District, Nanjing City, Jiangsu Province, 210017, China
| | - Kaiwen Shi
- Department of Joint Surgery, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Jianye District, Nanjing City, Jiangsu Province, 210017, China
| | - Jin Wang
- Department of Joint Surgery, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Jianye District, Nanjing City, Jiangsu Province, 210017, China
| | - Yan Cao
- Department of Joint Surgery, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Jianye District, Nanjing City, Jiangsu Province, 210017, China
| | - Yongxiang Li
- Department of Joint Orthopedics, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Jianye District, Nanjing City, Jiangsu Province, 210017, China.
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19
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Zhang Q, Wu S, Sun G, Zhang R, Li X, Zhang Y, Huang F, Yuan D. Hyperglycemia aggravates monocyte-endothelial adhesion in human umbilical vein endothelial cells from women with gestational diabetes mellitus by inducing Cx43 overexpression. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:234. [PMID: 33708861 PMCID: PMC7940931 DOI: 10.21037/atm-19-4738] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Background Gestational diabetes mellitus (GDM) is among the most common metabolic diseases during pregnancy and inevitably leads to maternal and fetal complications. Hyperglycemia results in injury to vascular endothelial cells, including monocyte-endothelial adhesion, which is considered to be the initiating factor of vascular endothelial cell injury. Connexin 43 (Cx43) plays a key role in this adhesion process. Therefore, this study aimed to explore the effects of Cx43 on monocyte-endothelial adhesion in GDM-induced injury of vascular endothelial cells. Methods Human umbilical vein endothelial cells (HUVECs) were isolated from umbilical cords from pregnant women with and without GDM. THP-1 cells (a human leukemia monocytic cell line) adhering to HUVECs, related molecules [intracellular adhesion molecule 1 (ICAM-1) and vascular cell adhesion molecule 1 (VCAM-1)], and the activity of the phosphoinositide 3-kinase/protein kinase B/Nuclear factor- kappa B (PI3K/AKT/NF-κB) signaling pathway were compared between the normal and GDM-HUVECs. Oleamide and specific small interfering ribonucleic acids (siRNAs) were used to inhibit Cx43 expression in GDM-HUVECs to observe the effects of Cx43 on the adhesion of THP-1 cells and HUVECs. Results A much higher number of THP-1 cells adhered to GDM-HUVECs than to normal HUVECs. This was accompanied by an increased expression of Cx43, ICAM-1, and VCAM-1, as well as activation of the PI3K/AKT/NF-κB signaling pathway. After the inhibition of Cx43 expression in GDM-HUVECs with oleamide and specific siRNA, THP-1-HUVEC adhesion, ICAM-1 and VCAM-1 expression, and activation of PI3K/AKT/NF-κB signaling pathway were all attenuated. Hyperglycemia was able to increase expression of Cx43 in HUVECs. Conclusions For the first time, Cx43 expression was found to be substantially higher in GDM-HUVECs than in normal HUVECs. Hyperglycemia caused the overexpression of Cx43 in HUVECs, which resulted in the activation of the PI3K/AKT/NF-κB signaling pathway and the increase of its downstream adhesion molecules, including ICAM-1 and VCAM-1, ultimately leading to increased monocyte-endothelial adhesion.
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Affiliation(s)
- Qian Zhang
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shan Wu
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Guoliang Sun
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Rui Zhang
- Department of Anesthesiology, Zhongshan Ophthalmic Center of Sun Yat-sen University, Guangzhou, China
| | - Xianlong Li
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yanling Zhang
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Fei Huang
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Dongdong Yuan
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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20
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Fraxetin inhibits interleukin-1β-induced apoptosis, inflammation, and matrix degradation in chondrocytes and protects rat cartilage in vivo. Saudi Pharm J 2021; 28:1499-1506. [PMID: 33424243 PMCID: PMC7783108 DOI: 10.1016/j.jsps.2020.09.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 09/17/2020] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA) is a disease characterized by degeneration of the joint complex due to cartilage destruction. Fraxetin, a widely used and studied coumarin compound extracted from a traditional Chinese herb (Qin Pi), has shown anti-inflammatory and antioxidant properties, but its effects on OA have not been studied. In the present study, western blotting, immunofluorescence, and terminal deoxynucleotidyl transferase (TdT) dUTP nick-end labeling (TUNEL) were used to evaluate the effects of fraxetin on IL-1β-induced apoptotic activity, inflammatory responses, and catabolism in rat chondrocytes. The results showed that fraxetin prevented IL-1β-induced apoptosis of chondrocytes and inhibited inflammatory mediator release by regulating the Toll-like receptor 4 (TLR4)/myeloid differentiation primary response 88 (MyD88)/nuclear factor (NF)-κB pathway in chondrocytes. Additionally, fraxetin suppressed the upregulation of matrix metalloproteinase 13 (MMP13) and degradation of collagen II in the extracellular matrix (ECM). Moreover, the effects of fraxetin in vivo were assessed in a monosodium iodoacetate (MIA)-induced rat model of OA using hematoxylin and eosin (H&E) and Safranin O-fast green staining and magnetic resonance imaging (MRI). The results showed that fraxetin protected the cartilage against destruction. In conclusion, fraxetin could be a potential therapeutic for OA.
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Key Words
- BSA, bovine albumin serum
- CCK-8, cell counting kit-8
- Catabolism
- DAMP, damage-associated molecular pattern
- DAPI, 4,6-diamidino-2-phenylindole
- ECL, enhanced chemiluminescence
- ECM, extracellular matrix
- Fraxetin
- H&E, hematoxylin and eosin
- HRP, horseradish peroxidase
- IL, interleukin
- IL-1β
- IgG, immunoglobulin G
- Inflammation
- IκBα, inhibitor of NF-κB-α
- MIA, monosodium iodoacetate
- MMP, matrix metalloproteinase
- MRI, magnetic resonance imaging
- MyD88, myeloid differentiation primary response 88
- NF, nuclear factor
- OA, osteoarthritis
- Osteoarthritis
- PBS, phosphate buffered saline, PMSF, phenylmethanesulphonyl fluoride
- PRR, pattern recognition receptor
- RIPA, radio-immunoprecipitation assay
- SD, Sprague-Dawley
- SDS-PAGE, sodium dodecyl sulfate–polyacrylamide gel electrophoresis
- SPF, specific pathogen free
- TLR, Toll-like receptor
- TLR4/MyD88/NF-κB signaling
- TNF-α, tumour necrosis factor
- TUNEL, TdT dUTP nick-end labeling
- TdT, terminal deoxynucleotidyl transferase
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21
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Yang G, Zhao Y. MicroRNA-490-3p inhibits inflammatory responses in LPS-induced acute lung injury of neonatal rats by suppressing the IRAK1/TRAF6 pathway. Exp Ther Med 2020; 21:152. [PMID: 33456519 PMCID: PMC7792502 DOI: 10.3892/etm.2020.9584] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 09/08/2020] [Indexed: 12/13/2022] Open
Abstract
Acute lung injury (ALI) is a main reason for neonatal death. Studying the molecular mechanism behind neonatal ALI is critical for the development of therapeutic strategies. The present study explored microRNA (miR)-490-3p-mediated regulatory effects on lipopolysaccharide (LPS)-induced neonatal ALI. Initially, LPS (10 mg/kg body weight) was injected to 3-8 day old neonatal SD rats to induce ALI, and LPS (100 ng/ml) was used to treat lung epithelial cells to construct an ALI model in vitro. Next, miR-490-3p, pro-inflammatory factors (that included IL-1β, IL-6 and TNFα), interleukin 1 receptor associated kinase 1 (IRAK1) and TNF receptor associated factor 6 (TRAF6) mRNA expression levels in lung tissues and epithelial cells were assessed via reverse transcription-quantitative PCR. In addition, miR-490-3p mimics were adopted to construct its overexpressed cell model, and Cell Counting Kit-8 and BrdU assays were conducted to assess cell viability. Furthermore, the miR-490-3p target, IRAK was predicted by bioinformatics analysis and verified via Dual-luciferase reporter gene assay. The results revealed that miR-490-3p was markedly downregulated in an LPS-induced rat ALI model, while IL-1β, IL-6, TNFα, IRAK1 and TRAF6 were all upregulated and negatively correlated with miR-490-3p expression. Moreover, overexpressed miR-490-3p significantly inhibited LPS-induced lung epithelial cell injury and inflammatory response. Mechanistically, miR-490-3p targeted and attenuated IRAK1 expression, which thus inactivated the LPS-mediated TRAF6/NF-κB pathway. Overall, the present study indicated that miR-490-3p overexpression significantly inhibited LPS-induced ALI and inflammatory responses by restricting the IRAK1/TRAF6 pathway.
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Affiliation(s)
- Guang Yang
- Department of Pediatrics, Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Yuan Zhao
- Department of Neonatal Internal Medicine, Shanxi Children's Hospital, Taiyuan, Shanxi 030013, P.R. China
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Ureña-Peralta JR, Pérez-Moraga R, García-García F, Guerri C. Lack of TLR4 modifies the miRNAs profile and attenuates inflammatory signaling pathways. PLoS One 2020; 15:e0237066. [PMID: 32780740 PMCID: PMC7418977 DOI: 10.1371/journal.pone.0237066] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 07/19/2020] [Indexed: 12/12/2022] Open
Abstract
TLR4 is a member of the toll-like receptors (TLR) immune family, which are activated by lipopolysaccharide, ethanol or damaged tissue, among others, by triggering proinflammatory cytokines release and inflammation. Lack of TLR4 protects against inflammatory processes and neuroinflammation linked with several neuropathologies. By considering that miRNAs are key post-transcriptional regulators of the proteins involved in distinct cellular processes, including inflammation, this study aimed to assess the impact of the miRNAs profile in mice cortices lacking the TLR4 response. Using mice cerebral cortices and next-generation sequencing (NGS), the findings showed that lack of TLR4 significantly reduced the quantity and diversity of the miRNAs expressed in WT mice cortices. The results also revealed a significant down-regulation of the miR-200 family, while cluster miR-99b/let-7e/miR-125a was up-regulated in TLR4-KO vs. WT. The bioinformatics and functional analyses demonstrated that TLR4-KO presented the systematic depletion of many pathways closely related to the immune system response, such as cytokine and interleukin signaling, MAPK and ion Channels routes, MyD88 pathways, NF-κβ and TLR7/8 pathways. Our results provide new insights into the molecular and biological processes associated with the protective effects of TLR-KO against inflammatory damage and neuroinflammation, and reveal the relevance of the TLR4 receptors response in many neuropathologies.
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Affiliation(s)
- Juan R. Ureña-Peralta
- Molecular and cellular pathology of Alcohol Laboratory, Prince Felipe Research Center, Valencia, Spain
| | - Raúl Pérez-Moraga
- Bioinformatics & Biostatistics Unit, Prince Felipe Research Center, Valencia, Spain
- Biomedical Imaging Unit FISABIO-CIPF, Prince Felipe Research Center, Valencia, Spain
| | | | - Consuelo Guerri
- Molecular and cellular pathology of Alcohol Laboratory, Prince Felipe Research Center, Valencia, Spain
- * E-mail:
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MicroRNA-377-3p alleviates IL-1β-caused chondrocyte apoptosis and cartilage degradation in osteoarthritis in part by downregulating ITGA6. Biochem Biophys Res Commun 2019; 523:46-53. [PMID: 31831175 DOI: 10.1016/j.bbrc.2019.11.186] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 11/28/2019] [Indexed: 12/23/2022]
Abstract
Increasing evidence indicates that altered expression of microRNAs (miRNAs) is associated with osteoarthritis (OA) progression. In our study, we demonstrated that miR-377-3p is underexpressed in OA-affected cartilage and IL-1β-treated chondrocytes. Overexpression of miR-377-3p enhanced chondrocyte proliferation and restrained apoptosis and signs of cartilage matrix degradation and of an inflammatory response. Furthermore, ITGA6 was identified as a target gene of miR-377-3p. The latter was found to directly bind to the 3' untranslated region (3'UTR) of ITGA6 mRNA and downregulate ITGA6. In addition, ITGA6 expression was high in OA-affected tissues and negatively correlated with miR-77-3p expression. Overexpression of ITGA6 reversed the effects of miR-377-3p on IL-1β-caused chondrocyte apoptosis, cartilage matrix degradation, and the inflammatory response. Moreover, bioinformatic analysis and a luciferase assay indicated that miR-377-3p expression is regulated by long noncoding RNA NEAT1, which binds to miR-377-3p and inactivates it. We showed that NEAT1 was highly expressed in OA-affected cartilage, negatively correlated with miR-377-3p levels, and positively correlated with ITGA6 levels. These findings provide information for the development of future treatments of OA, suggesting that miR-377-3p may be a therapeutic target in OA.
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