Scandinavian Journal of Immunology最新文献

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The role of bile acid receptor TGR5 in regulating inflammatory signalling. 胆汁酸受体 TGR5 在调节炎症信号中的作用
IF 3.7 4区 医学
Scandinavian Journal of Immunology Pub Date : 2024-04-01 Epub Date: 2024-02-02 DOI: 10.1111/sji.13361
Daijiao Ye, Jiayao He, Xiaofei He
{"title":"The role of bile acid receptor TGR5 in regulating inflammatory signalling.","authors":"Daijiao Ye, Jiayao He, Xiaofei He","doi":"10.1111/sji.13361","DOIUrl":"10.1111/sji.13361","url":null,"abstract":"<p><p>Takeda G protein-coupled receptor 5 (TGR5) is a bile acid receptor, and its role in regulating metabolism after binding with bile acids has been established. Since the immune response depends on metabolism to provide biomolecules and energy to cope with challenging conditions, emerging evidence reveals the regulatory effects of TGR5 on the immune response. An in-depth understanding of the effect of TGR5 on immune regulation can help us disentangle the interaction of metabolism and immune response, accelerating the development of TGR5 as a therapeutic target. Herein, we reviewed more than 200 articles published in the last 20 years in PubMed, to discuss the roles of TGR5 in regulating inflammatory response, the molecular mechanism, as well as existing problems. Particularly, its anti-inflammation effect is emphasized.</p>","PeriodicalId":21493,"journal":{"name":"Scandinavian Journal of Immunology","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139672559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Systematic analysis of mucosal‐associated invariant T cells in haematological malignancies 对血液恶性肿瘤中粘膜相关不变 T 细胞的系统分析
IF 3.7 4区 医学
Scandinavian Journal of Immunology Pub Date : 2024-03-06 DOI: 10.1111/sji.13364
Barbora Bacova, Jakub Cierny, Lucia Nemcekova, Jitka Smetanova/Brozova, Jan Novak
{"title":"Systematic analysis of mucosal‐associated invariant T cells in haematological malignancies","authors":"Barbora Bacova, Jakub Cierny, Lucia Nemcekova, Jitka Smetanova/Brozova, Jan Novak","doi":"10.1111/sji.13364","DOIUrl":"https://doi.org/10.1111/sji.13364","url":null,"abstract":"Mucosal‐associated invariant T‐cells (MAIT) are unconventional T‐cells with cytotoxic and pro‐inflammatory properties. Previous research has reported contradictory findings on their role in cancerogenesis with data being even scarcer in haematological malignancies. Here, we report the results of a systematic analysis of MAIT cells in treatment‐naïve patients with a broad range of haematological malignancies. We analysed peripheral blood of 204 patients and 50 healthy subjects. The pool of haematological patients had a statistically significant lower both the absolute value (median values, 0.01 × 10<jats:sup>9</jats:sup>/L vs. 0.05 × 10<jats:sup>9</jats:sup>/L) of MAIT cells and their percentage (median values 0.94% vs. 2.56%) among T‐cells compared to the control group. Separate analysis showed that the decrease in the absolute number of MAIT cells is significant in patients with acute myeloid leukaemia, myeloproliferative neoplasms, plasma cell myeloma, B‐cell non‐Hodgkin lymphomas, otherwise not specified, diffuse large B‐cell lymphoma, follicular lymphoma, mantle cell lymphoma, marginal zone lymphoma compared to the control population. Furthermore, in haematological malignancies, MAIT cells overexpress PD‐1 (average values, 51.7% vs. 6.7%), HLA‐DR (average values, 40.2% vs. 7%), CD38 (average values, 25.9% vs. 4.9%) and CD69 (average values, 40.2% vs. 9.2%). Similar results were obtained when comparing patients with individual malignancies to the control population. Our data show that the depletion of circulating MAIT cells is a common observation in a broad spectrum of haematological malignancies. In addition to their reduced numbers, MAIT cells acquire an activated/exhausted phenotype.","PeriodicalId":21493,"journal":{"name":"Scandinavian Journal of Immunology","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140053698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Changes in serum immunoglobulin G glycosylation patterns for antiphospholipid syndrome patients with lectin microarray 利用凝集素芯片分析抗磷脂综合征患者血清免疫球蛋白 G 糖基化模式的变化
IF 3.7 4区 医学
Scandinavian Journal of Immunology Pub Date : 2024-03-05 DOI: 10.1111/sji.13366
Yifei Wang, Siting Li, Jingjing Meng, Rui Yu, Qian Wang, Xinping Tian, Mengtao Li, Xiaofeng Zeng, Jiulang Zhao, Chaojun Hu
{"title":"Changes in serum immunoglobulin G glycosylation patterns for antiphospholipid syndrome patients with lectin microarray","authors":"Yifei Wang, Siting Li, Jingjing Meng, Rui Yu, Qian Wang, Xinping Tian, Mengtao Li, Xiaofeng Zeng, Jiulang Zhao, Chaojun Hu","doi":"10.1111/sji.13366","DOIUrl":"https://doi.org/10.1111/sji.13366","url":null,"abstract":"Antiphospholipid syndrome is a rare autoimmune disease characterized by persistent antiphospholipid antibodies. Immunoglobulin G plays a vital role in disease progression, with its structure and function affected by glycosylation. We aimed to investigate the changes in the serum immunoglobulin G glycosylation pattern in antiphospholipid syndrome patients. We applied lectin microarray on samples from 178 antiphospholipid syndrome patients, 135 disease controls (including Takayasu arteritis, rheumatoid arthritis and cardiovascular disease) and 100 healthy controls. Lectin blots were performed for validation of significant differences. Here, we show an increased immunoglobulin G‐binding level of soybean agglutinin (<jats:italic>p</jats:italic> = 0.047, preferring N‐acetylgalactosamine) in antiphospholipid syndrome patients compared with healthy and disease controls. Additionally, the immunoglobulin G from antiphospholipid syndrome patients diagnosed with pregnancy events had lower levels of fucosylation (<jats:italic>p</jats:italic> = 0.001, recognized by <jats:italic>Lotus tetragonolobus</jats:italic>) and sialylation (<jats:italic>p</jats:italic> = 0.030, recognized by <jats:italic>Sambucus nigra</jats:italic> I) than those with simple thrombotic events. These results suggest the unique serum immunoglobulin G glycosylation profile of antiphospholipid syndrome patients, which may inform future studies to design biomarkers for more accurate diagnosis of antiphospholipid syndrome and even for the prediction of clinical symptoms in patients.","PeriodicalId":21493,"journal":{"name":"Scandinavian Journal of Immunology","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140046310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Blood defense system – Proposal for a new concept of an immune system against blood borne pathogens comprising the liver, spleen and bone marrow 血液防御系统--关于由肝、脾和骨髓组成的血液传播病原体免疫系统新概念的建议
IF 3.7 4区 医学
Scandinavian Journal of Immunology Pub Date : 2024-03-05 DOI: 10.1111/sji.13363
Makoto Kashimura
{"title":"Blood defense system – Proposal for a new concept of an immune system against blood borne pathogens comprising the liver, spleen and bone marrow","authors":"Makoto Kashimura","doi":"10.1111/sji.13363","DOIUrl":"https://doi.org/10.1111/sji.13363","url":null,"abstract":"Blood‐borne pathogen (BBP) infections can rapidly progress to life‐threatening sepsis and must therefore be promptly eliminated by the host's immune system. Intravascular macrophages of the liver sinusoid, splenic marginal zone and red pulp and perisinusoidal macrophage protrusions in the bone marrow (BM) directly phagocytose BBPs in the blood as an innate immune response. The liver, spleen and BM thereby work together as the blood defence system (BDS) in response to BBPs by exerting their different immunological roles. The liver removes the vast majority of these invading organisms via innate immunity, but their complete elimination is not possible without the actions of antibodies. Splenic marginal zone B cells promptly produce IgM and IgG antibodies against BBPs. The splenic marginal zone transports antigenic information from the innate to the adaptive immune systems. The white pulp of the spleen functions as adaptive immune tissue and produces specific and high‐affinity antibodies with an immune memory against BBPs. The BM works to maintain immune memory by supporting the survival of memory B cells, memory T cells and long‐lived plasma cells (LLPCs), all of which have dedicated niches. Furthermore, BM perisinusoidal naïve follicular B cells promptly produce IgM antibodies against BBPs in the BM sinusoid and the IgG memory B cells residing in the BM rapidly transform to plasma cells which produce high‐affinity IgG antibodies upon reinfection. This review describes the complete immune defence characteristics of the BDS against BBPs through the collaboration of the liver, spleen and BM with combined different immunological roles.","PeriodicalId":21493,"journal":{"name":"Scandinavian Journal of Immunology","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140046051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The presence of autoantibodies as a potential prognostic biomarker for breast cancer 作为乳腺癌潜在预后生物标志物的自身抗体的存在
IF 3.7 4区 医学
Scandinavian Journal of Immunology Pub Date : 2024-02-29 DOI: 10.1111/sji.13365
Libo Ouyang, Keying Jing, Chunkai Zhu, Rong Wang, Peiming Zheng
{"title":"The presence of autoantibodies as a potential prognostic biomarker for breast cancer","authors":"Libo Ouyang, Keying Jing, Chunkai Zhu, Rong Wang, Peiming Zheng","doi":"10.1111/sji.13365","DOIUrl":"https://doi.org/10.1111/sji.13365","url":null,"abstract":"The presence of autoantibodies is closely associated with the occurrence and development of cancer. Autoantibodies can be used as biomarkers for early breast cancer diagnosis. However, the relationship between autoantibodies and the prognosis of breast cancer patients remains elusive. This retrospective study aimed to investigate the correlation between the presence of autoantibodies and outcomes in breast cancer patients. This study included a total of 155 patients from People's Hospital of Henan University (Zhengzhou, China) who were diagnosed with breast cancer from January 2017 to December 2021. The enrolled patients' clinicopathological features were collected, and 88 patients were ultimately involved in the analysis. Univariate and multivariate Cox regression analyses were performed to search for the risk factors related to the poor prognosis of breast cancer patients. The association between the presence of autoantibodies and patients' survival was analysed using Kaplan–Meier curves. After screening, there were 38 autoantibody‐positive cases and 50 autoantibody‐negative cases. Breast cancer patients with autoantibody‐positive had a 57% lower risk of death compared with autoantibody‐negative patients. Multivariate Cox regression analysis indicated that the presence of autoantibody could be a potential prognostic predictor for breast cancer, independent of age, histological grade, pathological classification, clinical stage, and the expression levels of hormonal receptors. In addition, autoantibody‐positive breast cancer patients had longer progression‐free survival and overall survival compared with autoantibody‐negative cases. Positive autoantibody was found as an independent biomarker of better prognosis in breast cancer patients, providing a new strategy for the prognostic assessment of breast cancer patients.","PeriodicalId":21493,"journal":{"name":"Scandinavian Journal of Immunology","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140002270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interaction of T-cell-specific adapter protein with Src- and Tec-family kinases T 细胞特异性适配蛋白与 Src 和 Tec 家族激酶的相互作用
IF 3.7 4区 医学
Scandinavian Journal of Immunology Pub Date : 2024-01-28 DOI: 10.1111/sji.13358
Zsuzsa Huszenicza, Brian C. Gilmour, Lise Koll, Hanna Kjelstrup, Hanna Chan, Vibeke Sundvold, Stine Granum, Anne Spurkland
{"title":"Interaction of T-cell-specific adapter protein with Src- and Tec-family kinases","authors":"Zsuzsa Huszenicza, Brian C. Gilmour, Lise Koll, Hanna Kjelstrup, Hanna Chan, Vibeke Sundvold, Stine Granum, Anne Spurkland","doi":"10.1111/sji.13358","DOIUrl":"https://doi.org/10.1111/sji.13358","url":null,"abstract":"Adapter proteins are flexible and dynamic modulators of cellular signalling that are important for immune cell function. One of these, the T-cell-specific adapter protein (TSAd), interacts with the non-receptor tyrosine kinases Src and Lck of the Src family kinases (SFKs) and Itk of the Tec family kinases (TFKs). Three tyrosine residues in the TSAd C-terminus are phosphorylated by Lck and serve as docking sites for the Src homology 2 (SH2) domains of Src and Lck. The TSAd proline-rich region (PRR) binds to the Src homology 3 (SH3) domains found in Lck, Src and Itk. Despite known interactors, the role TSAd plays in cellular signalling remains largely unknown. TSAd's ability to bind both SFKs and TFKs may point to its function as a general scaffold for both kinase families. Using GST-pulldown as well as peptide array experiments, we found that both the SH2 and SH3 domains of the SFKs Fyn and Hck, as well as the TFKs Tec and Txk, interact with TSAd. This contrasts with Itk, which interacts with TSAd only through its SH3 domain. Although our analysis showed that TSAd is both co-expressed and may interact with Fyn, we were unable to co-precipitate Fyn with TSAd from Jurkat cells, as detected by Western blotting and affinity purification mass spectrometry. This may suggest that TSAd-Fyn interaction in intact cells may be limited by other factors, such as the subcellular localization of the two molecules or the co-expression of competing binding partners.","PeriodicalId":21493,"journal":{"name":"Scandinavian Journal of Immunology","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139584851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Haematopoietic innate interleukin 17A production drives immunopathology in female mouse genital Chlamydia muridarum infection 造血先天性白细胞介素 17A 的产生推动了雌性小鼠生殖器衣原体感染的免疫病理学发展
IF 3.7 4区 医学
Scandinavian Journal of Immunology Pub Date : 2024-01-21 DOI: 10.1111/sji.13359
Charles W. Armitage, Emily R. Bryan, Logan Trim, Ella Palframan, Lucas Wager, Kenneth W. Beagley, Alison J. Carey
{"title":"Haematopoietic innate interleukin 17A production drives immunopathology in female mouse genital Chlamydia muridarum infection","authors":"Charles W. Armitage, Emily R. Bryan, Logan Trim, Ella Palframan, Lucas Wager, Kenneth W. Beagley, Alison J. Carey","doi":"10.1111/sji.13359","DOIUrl":"https://doi.org/10.1111/sji.13359","url":null,"abstract":"<i>Chlamydia trachomatis</i> infection is the leading cause of bacterial urogenital infection and has been demonstrated to drive inflammation and scarring of the reproductive tract. Recent studies have identified key triggers of proinflammatory adaptive immune responses driven by innate leukocytes and epithelia driving immunopathology. Utilizing chimeric mouse models, we investigated the definitive source and role of IL17 and IL17 signalling receptors during early <i>Chlamydia muridarum</i> infection of the female urogenital tract. Bone marrow transplants from wild-type (WT) and IL17A<sup>−/−</sup> mice to recipients demonstrated equivocal infection kinetics in the reproductive tract, but interestingly, adoptive transfer of IL17A<sup>−/−</sup> immune cells to WT recipients resulted in no infertility, suggesting a haematopoietic (as opposed to tissue) source of IL17 driving immunopathology. To further delineate the role of IL17 in immunopathology, we infected WT and IL17 receptor A (IL17RA)<sup>−/−</sup> female mice and observed a significant reduction in immunopathology in IL17RA<sup>−/−</sup> mice. WT bone marrow transplants to IL17RA<sup>−/−</sup> recipient mice prevented hydrosalpinx, suggesting signalling through IL17RA drives immunopathology. Furthermore, early chemical inhibition of IL17 signalling significantly reduced hydrosalpinx, suggesting IL17 acts as an innate driver of disease. Early during the infection, IL17 was produced by γδ T cells in the cervico-vagina, but more importantly, by neutrophils at the site of infertility in the oviducts. Taken together, these data suggest innate production of IL17 by haematopoietic leukocytes drives immunopathology in the epithelia during early <i>C. muridarum</i> infection of the female reproductive tract.","PeriodicalId":21493,"journal":{"name":"Scandinavian Journal of Immunology","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139517985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The role of hormones in ILC2-driven allergic airway inflammation 激素在 ILC2 驱动的过敏性气道炎症中的作用
IF 3.7 4区 医学
Scandinavian Journal of Immunology Pub Date : 2024-01-19 DOI: 10.1111/sji.13357
Zhongling Dai, Zhande Gong, Cui Wang, WeiXiang Long, Duo Liu, Haijun Zhang, Aihua Lei
{"title":"The role of hormones in ILC2-driven allergic airway inflammation","authors":"Zhongling Dai, Zhande Gong, Cui Wang, WeiXiang Long, Duo Liu, Haijun Zhang, Aihua Lei","doi":"10.1111/sji.13357","DOIUrl":"https://doi.org/10.1111/sji.13357","url":null,"abstract":"Group 2 innate lymphoid cells (ILC2s) are a type of innate immune cells that produce a large amount of IL-5 and IL-13 and two cytokines that are crucial for various processes such as allergic airway inflammation, tissue repair and tissue homeostasis. It is known that damaged epithelial-derived alarmins, such as IL-33, IL-25 and thymic stromal lymphopoietin (TSLP), are the predominant ILC2 activators that mediate the production of type 2 cytokines. In recent years, abundant studies have found that many factors can regulate ILC2 development and function. Hormones synthesized by the body's endocrine glands or cells play an important role in immune response. Notably, ILC2s express hormone receptors and their proliferation and function can be modulated by multiple hormones during allergic airway inflammation. Here, we summarize the effects of multiple hormones on ILC2-driven allergic airway inflammation and discuss the underlying mechanisms and potential therapeutic significance.","PeriodicalId":21493,"journal":{"name":"Scandinavian Journal of Immunology","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139517811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unlocking PD-1 antibody resistance: The MUC1 DNA vaccine augments CD8+ T cell infiltration and attenuates tumour suppression 解除 PD-1 抗体的抗药性:MUC1 DNA 疫苗可增强 CD8+ T 细胞浸润并减弱肿瘤抑制作用
IF 3.7 4区 医学
Scandinavian Journal of Immunology Pub Date : 2024-01-19 DOI: 10.1111/sji.13356
Xiaoqin Wang, Yinsha Miao, Jinghui Shen, Dandan Li, Xinyue Deng, Chengcheng Yang, Yanhong Ji, ZhiJun Dai, Yunfeng Ma
{"title":"Unlocking PD-1 antibody resistance: The MUC1 DNA vaccine augments CD8+ T cell infiltration and attenuates tumour suppression","authors":"Xiaoqin Wang, Yinsha Miao, Jinghui Shen, Dandan Li, Xinyue Deng, Chengcheng Yang, Yanhong Ji, ZhiJun Dai, Yunfeng Ma","doi":"10.1111/sji.13356","DOIUrl":"https://doi.org/10.1111/sji.13356","url":null,"abstract":"In light of increasing resistance to PD1 antibody therapy among certain patient populations, there is a critical need for in-depth research. Our study assesses the synergistic effects of a MUC1 DNA vaccine and PD1 antibody for surmounting PD1 resistance, employing a murine CT26/MUC1 colon carcinoma model for this purpose. When given as a standalone treatment, PD1 antibodies showed no impact on tumour growth. Additionally, there was no change observed in the intra-tumoural T-cell ratios or in the functionality of T-cells. In contrast, the sole administration of a MUC1 DNA vaccine markedly boosted the cytotoxicity of CD8<sup>+</sup> T cells by elevating IFN-γ and granzyme B production. Our compelling evidence highlights that combination therapy more effectively inhibited tumour growth and prolonged survival compared to either monotherapy, thus mitigating the limitations intrinsic to single-agent therapies. This enhanced efficacy was driven by a significant alteration in the tumour microenvironment, skewing it towards pro-immunogenic conditions. This assertion is backed by a raised CD8<sup>+</sup>/CD4<sup>+</sup> T-cell ratio and a decrease in immunosuppressive MDSC and Treg cell populations. On the mechanistic front, the synergistic therapy amplified expression levels of CXCL13 in tumours, subsequently facilitating T-cell ingress into the tumour setting. In summary, our findings advocate for integrated therapy as a potent mechanism for surmounting PD1 antibody resistance, capitalizing on improved T-cell functionality and infiltration. This investigation affords critical perspectives on enhancing anti-tumour immunity through the application of innovative therapeutic strategies.","PeriodicalId":21493,"journal":{"name":"Scandinavian Journal of Immunology","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139518034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exosomal miR-126-3p: Potential protection against vascular damage by regulating the SLC7A5/mTOR Signalling pathway in human umbilical vein endothelial cells 外泌体 miR-126-3p:通过调节人脐静脉内皮细胞中的 SLC7A5/mTOR 信号通路来防止血管损伤的潜力
IF 3.7 4区 医学
Scandinavian Journal of Immunology Pub Date : 2024-01-16 DOI: 10.1111/sji.13354
Ke Zhu, Chen Liu, Xiaofang Guo, Xuting Zhang, Jiaxin Xie, Songmiao Xie, Qing Qi, Bin Yang
{"title":"Exosomal miR-126-3p: Potential protection against vascular damage by regulating the SLC7A5/mTOR Signalling pathway in human umbilical vein endothelial cells","authors":"Ke Zhu, Chen Liu, Xiaofang Guo, Xuting Zhang, Jiaxin Xie, Songmiao Xie, Qing Qi, Bin Yang","doi":"10.1111/sji.13354","DOIUrl":"https://doi.org/10.1111/sji.13354","url":null,"abstract":"Systemic sclerosis (SSc) is a chronic autoimmune connective tissue disease. Vascular damage is one of the important features of SSc, which affects the progression and prognosis of the disease. MiR-126-3p is an important microRNA (miRNA) that regulates vascular structure and function, which can be transported through exosomes. However, the role of miR-126-3p in vascular damage in SSc is still unclear. Therefore, we focused on the connection between miR-126-3p and vascular damage in SSc, as well as investigated the potential role of miR-126-3p in vascular damage in SSc. First, this study successfully extracted extracellular vesicles from clinical plasma samples and characterized the exosomes within them. Then, we predicted and screened the target pathway mammalian/mechanistic target of rapamycin (mTOR) and the target gene SLC7A5 of miR-126-3p through online databases. Next, we constructed SSc mice for in vivo studies. The results showed that the expression of miR-126-3p was decreased in the plasma exosomes, while the SLC7A5 expression, autophagy, and lipid peroxidation were increased in the aorta. Luciferase reporter gene assays demonstrated that miR-126-3p can bind to SLC7A5, resulting in a decrease in its expression. In vitro experiments have shown that exosomal miR-126-3p can be internalized by human umbilical vein endothelial cells (HUVECs). The miR-126-3p group exhibited enhanced cell viability and tube formation ability, along with increased expression of the vascular formation marker CD31. Additionally, miR-126-3p downregulated the protein expression of SLC7A5 and LC3 in HUVECs, while upregulating the protein expression of mTOR, P62, PPARγ, and CPT-1. However, the effects of miR-126-3p on HUVECs were counteracted by mTOR inhibitors and enhanced by mTOR activators. The results indicated that exosomal miR-126-3p has the potential to protect against vascular injury in SSc by regulating the SLC7A5/mTOR signalling pathway in HUVECs.","PeriodicalId":21493,"journal":{"name":"Scandinavian Journal of Immunology","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139498207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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