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Cui Y, Zhang L, Liu Y, Liu W, Shi W, Bao Y. Compound small peptide of Chinese medicine alleviates cyclophosphamide induced immunosuppression in mice by Th17/Treg and jejunum intestinal flora. Front Microbiol 2023; 14:1039287. [PMID: 37056742 PMCID: PMC10089124 DOI: 10.3389/fmicb.2023.1039287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 02/27/2023] [Indexed: 03/30/2023] Open
Abstract
The aim of this study was to explore the efficacy of Compound small peptide of Chinese medicine (CSPCM) on cyclophosphamide (CTX) induced immunosuppression in mice. The 100 male Kunming mice were divided into 5 groups: group A (control group), group B (model group), group C (100 mg/kg.bw CSPCM), group D (200 mg/kg.bw CSPCM) and group E (400 mg/kg.bw CSPCM). At 1–3 days, mice of group B, C, D and E were intraperitoneally injected with 80 mg/kg.bw CTX. The results showed that compared with group A, the immune organ index, body weight change, RORγ T gene expression, RORγ T protein expression, CD3+ cell number, Th17 number and Alpha index, white blood cell count, lymphocyte count and monocyte count were significantly decreased in group B (p < 0.05), while Foxp3 gene expression, Foxp3 protein expression and Treg cell number were significantly increased (p < 0.05), CSPCM has a good therapeutic effect on the above abnormalities caused by CTX. CTX caused the decrease of intestinal flora richness and the abnormal structure of intestinal flora, and CSPCM could change the intestinal flora destroyed by CTX to the direction of intestinal flora of healthy mice. On the whole, CSPCM has a good therapeutic effect on CTX-induced immunosuppression in mice, which is reflected in the index of immune organs, the number of T lymphocytes and Th17 cells increased, the number of Treg cells decreased and the structure of intestinal flora was reconstructed.
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Affiliation(s)
- Yuqing Cui
- College of Veterinary Medicine, Institute of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Lu Zhang
- College of Veterinary Medicine, Institute of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Ying Liu
- College of Veterinary Medicine, Institute of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Wei Liu
- College of Veterinary Medicine, Institute of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Wanyu Shi
- College of Veterinary Medicine, Institute of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, China
- Pharmacoefficacy Laboratory, Hebei Provincial Engineering Center for Chinese Veterinary Herbal Medicine, Baoding, China
- *Correspondence: Wanyu Shi,
| | - Yongzhan Bao
- College of Veterinary Medicine, Institute of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, China
- Pharmacoefficacy Laboratory, Hebei Provincial Engineering Center for Chinese Veterinary Herbal Medicine, Baoding, China
- Yongzhan Bao,
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Long C, Liu H, Zhan W, Chen L, Wu A, Yang L, Chen S. Null Function of Npr1 Disturbs Immune Response in Colonic Inflammation During Early Postnatal Stage. Inflammation 2022; 45:2419-2432. [PMID: 35794311 PMCID: PMC9646613 DOI: 10.1007/s10753-022-01702-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 06/01/2022] [Accepted: 06/06/2022] [Indexed: 12/24/2022]
Abstract
Natriuretic peptide receptor 1 (NPR1) is conventionally known as a regulator of vascular homeostasis. Here, we generated an Npr1 knockout mouse model with CRISPR/Cas9 technology and found that homozygous mice (Npr1-/-) exhibited weight loss and poor survival rate during early postnatal stage. Careful examination revealed unexpectedly that Npr1-/- mice developed colitis characterized by shortened colon, evident colonic mucosal damage, increased histopathological score, and higher colonic expression of proinflammatory cytokines interleukin-1B (IL1B) and -6 (IL6). RNA-sequencing analysis revealed that differentially expressed genes were prominently enriched in the biological pathways related to immune response in both spleen and colon of Npr1-/- mice. Cytofluorimetric analysis demonstrated that leukocytes in the spleen were significantly increased, particularly, the populations of neutrophil and CD3+ T cell were elevated but CD4+ T cells were decreased in Npr1-/- mice. Administration of 8-Br-cGMP, a downstream activator of NPR1, restored these immune-cell populations disturbed in Npr1-/- mice and lessened the colitis-related phenotypes. To validate the involvement of Npr1 in colitis, we examined another mouse model induced by dextran sodium sulfate (DSS) and found a decreased Npr1 expression and shifted immune-cell populations as well. Importantly, 8-Br-cGMP treatment exhibited a similar effect in the restoration of immune-cell populations and attenuation of colonic inflammation in DSS mice. Our data indicate that loss of Npr1 possibly interrupts immune response, which is critical to the pathogenesis of colitis in the early life.
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Affiliation(s)
- Changkun Long
- Vascular Function Laboratory, Human Aging Research Institute and School of Life Science, and Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang, 330031, China
| | - Hongfei Liu
- Vascular Function Laboratory, Human Aging Research Institute and School of Life Science, and Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang, 330031, China
| | - Wenxing Zhan
- Vascular Function Laboratory, Human Aging Research Institute and School of Life Science, and Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang, 330031, China
| | - Liping Chen
- Vascular Function Laboratory, Human Aging Research Institute and School of Life Science, and Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang, 330031, China
| | - Andong Wu
- Aging and Vascular DiseasesSchool of Life Scienceand Jiangxi Key Laboratory of Human Aging, Human Aging Research Institute, Nanchang University, Nanchang, 330031, China
| | - Lin Yang
- Department of Nephrology, Jiangxi Provincial People's Hospital, Affiliated to Nanchang University, Nanchang, 330006, China
| | - Shenghan Chen
- Vascular Function Laboratory, Human Aging Research Institute and School of Life Science, and Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang, 330031, China.
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Zhang Y, Jiang W, Luo X. Remifentanil combined with dexmedetomidine on the analgesic effect of breast cancer patients undergoing modified radical mastectomy and the influence of perioperative T lymphocyte subsets. Front Surg 2022; 9:1016690. [PMID: 36425893 PMCID: PMC9680973 DOI: 10.3389/fsurg.2022.1016690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/13/2022] [Indexed: 09/05/2023] Open
Abstract
OBJECTIVE To study the analgesic effect of breast cancer patients undergoing modified radical mastectomy (MRM) and the influence of perioperative T lymphocyte subsets by remifentanil combined with dexmedetomidine. METHODS 80 breast patients were divided into control group and research group based on the anesthesia protocol. Patients in control group was given remifentanil for anesthesia induction and maintenance, and patients in research group was given remifentanil and dexmedetomidine for anesthesia induction and maintenance. We compared the anesthesia time, operation time, surgical blood loss, postoperative wake-up time, extubation time, incidence of adverse reactions, VAS score and T lymphocyte subsets in peripheral blood in the two groups of patients. RESULTS The baseline data including age, height, weight and BMI, ASA classification, stage of breast cancer, frequency of neoadjuvant therapy, and surgical characteristics including anesthesia time, operation time and bleeding volume all have no significant difference between two groups (P > 0.05). Compared to control group, the time of wake up and extubation in patients of research group were all significantly decreased (P < 0.05), and significantly decreased MBP and HR after loading dose of dexmedetomidine in research group (P < 0.05). The VAS scores of patients at 4, 8, 12, 16, 20 and 24 h after surgery in the research group are all significantly lower than those in the control group (P < 0.05). Before induction of anesthesia, there was no significant difference in the ratio of CD4+, CD8+ and CD4+/CD8+ T lymphocytes in peripheral blood between the two groups (P > 0.05). At 1 h during operation and 24 h after operation, the ratio of CD4+ and CD4+/CD8+ cells in the research group was significantly higher than these of the control group (P < 0.05), while the ratio of CD8+ cells was lower than that of the control group (P < 0.05). CONCLUSION For breast cancer patients undergoing MRM, the use of remifentanil combined with dexmedetomidine can enhance postoperative analgesia and reduce postoperative immunosuppression.
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Affiliation(s)
- Yanjun Zhang
- Department of Breast Surgery, Yongchuan Hospital of Chongqing Medical University, Chongqing, China
| | - Wei Jiang
- Department of Anesthesiology, Yongchuan Hospital of Chongqing Medical University, Chongqing, China
| | - Xi Luo
- Department of Anesthesiology, Yongchuan Hospital of Chongqing Medical University, Chongqing, China
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Helicobacter bilis Contributes to the Occurrence of Inflammatory Bowel Disease by Inducing Host Immune Disorders. BIOMED RESEARCH INTERNATIONAL 2022; 2022:1837850. [PMID: 35983246 PMCID: PMC9381287 DOI: 10.1155/2022/1837850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 07/17/2022] [Accepted: 07/20/2022] [Indexed: 11/29/2022]
Abstract
Gut microbiota coevolve with humans to achieve a symbiotic relationship, which ultimately leads to physiological homeostasis. A variety of diseases can occur once this balance is disrupted. Helicobacter bilis (H. bilis) is an opportunistic pathogen in humans, triggering multiple diseases, including inflammatory bowel disease (IBD). IBD is a chronic immunologically mediated inflammation of the human gastrointestinal tract, and its occurrence is closely related to the gut microbiota. Several studies have demonstrated that H. bilis colonization is associated with IBD, and its mechanism is related to host immunity. However, few studies have investigated these mechanisms of action. Therefore, this article is aimed at reviewing these studies and summarizing the mechanisms of H. bilis-induced IBD from two perspectives: adaptive immunity and innate immunity. Furthermore, this study provides a preliminary discussion on treating H. bilis-related IBD. In addition, we also demonstrated that H. bilis played an important role in promoting the carcinogenesis of IBD and discussed its mechanism.
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Zhao X, Jiang L, Fang X, Guo Z, Wang X, Shi B, Meng Q. Host-microbiota interaction-mediated resistance to inflammatory bowel disease in pigs. MICROBIOME 2022; 10:115. [PMID: 35907917 PMCID: PMC9338544 DOI: 10.1186/s40168-022-01303-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 06/07/2022] [Indexed: 05/04/2023]
Abstract
BACKGROUND Disease resistance phenotypes are associated with immune regulatory functions and immune tolerance and have implications for both the livestock industry and human health. Microbiota plays an essential role in regulating immunity and autoimmunity in the host organism, but the influence of host-microbiota interactions on disease resistance phenotypes remains unclear. Here, multiomics analysis was performed to identify potential regulatory mechanisms of disease resistance at both the microbiome and host levels in two pig breeds. RESULTS Acute colitis models were established in Min pigs and Yorkshire pigs, and control and diseased individuals were compared. Compared with Yorkshire pigs under the same nutritional and management conditions, Min pigs exhibited strong disease resistance, as indicated by a low disease activity index (DAI) and a low histological activity index (HAI). Microbiota sequencing analysis showed that potentially harmful microbes Desulfovibrio, Bacteroides and Streptococcus were enriched in diseased individuals of the two breeds. Notably, potentially beneficial microbes, such as Lactobacillus, Clostridia and Eubacterium, and several genera belonging to Ruminococcaceae and Christensenellaceae were enriched in diseased Min pigs and were found to be positively associated with the microbial metabolites related to intestinal barrier function. Specifically, the concentrations of indole derivatives and short-chain fatty acids were increased in diseased Min pigs, suggesting beneficial action in protecting intestinal barrier. In addition, lower concentrations of bile acid metabolites and short-chain fatty acids were observed in diseased Yorkshire pigs, which were associated with increased potentially harmful microbes, such as Bilophila and Alistipes. Concerning enrichment of the immune response, the increase in CD4+ T cells in the lamina propria improved supervision of the host immunity response in diseased Min pigs, contributing to the maintenance of Th2-type immune superiority and immune tolerance patterns and control of excessive inflammation with the help of potentially beneficial microbes. In diseased Yorkshire pigs, more terms belonging to biological processes of immunity were enriched, including Toll-like receptors signalling, NF-κB signalling and Th1 and Th17-type immune responses, along with the increases of potentially harmful microbes and damaged intestinal barrier. CONCLUSIONS Cumulatively, the results for the two pig breeds highlight that host-microbiota crosstalk promotes a disease resistance phenotype in three ways: by maintaining partial PRR nonactivation, maintaining Th2-type immune superiority and immunological tolerance patterns and recovering gut barrier function to protect against colonic diseases. Video abstract.
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Affiliation(s)
- Xuan Zhao
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Lin Jiang
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Xiuyu Fang
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Zhiqiang Guo
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Xiaoxu Wang
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Baoming Shi
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
| | - Qingwei Meng
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
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Abstract
Mucosal surfaces are distinctive sites exposed to environmental, dietary, and microbial antigens. Particularly in the gut, the host continuously actively adapts via complex interactions between the microbiota and dietary compounds and immune and other tissue cells. Regulatory T cells (Tregs) are critical for tuning the intestinal immune response to self- and non-self-antigens in the intestine. Its importance in intestinal homeostasis is illustrated by the onset of overt inflammation caused by deficiency in Treg generation, function, or stability in the gut. A substantial imbalance in Tregs has been observed in intestinal tissue during pathogenic conditions, when a tightly regulated and equilibrated system becomes dysregulated and leads to unimpeded and chronic immune responses. In this chapter, we compile and critically discuss the current knowledge on the key factors that promote Treg-mediated tolerance in the gut, such as those involved in intestinal Treg differentiation, specificity and suppressive function, and their immunophenotype during health and disease. We also discuss the current state of knowledge on Treg dysregulation in human intestine during pathological states such as inflammatory bowel disease (IBD), necrotizing enterocolitis (NEC), graft-versus-host disease (GVHD), and colorectal cancer (CRC), and how that knowledge is guiding development of Treg-targeted therapies to treat or prevent intestinal disorders.
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Figliuolo da Paz V, Ghishan FK, Kiela PR. Emerging Roles of Disabled Homolog 2 (DAB2) in Immune Regulation. Front Immunol 2020; 11:580302. [PMID: 33178208 PMCID: PMC7593574 DOI: 10.3389/fimmu.2020.580302] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 09/24/2020] [Indexed: 12/24/2022] Open
Abstract
Disabled-2 (DAB2) is a clathrin and cargo binding endocytic adaptor protein recognized for its multifaceted roles in signaling pathways involved in cellular differentiation, proliferation, migration, tumor suppression, and other fundamental homeostatic cellular mechanisms. The requirement for DAB2 in the canonical TGFβ signaling in fibroblasts suggested that a similar mechanism may exist in immune cells and that DAB2 may contribute to immunological tolerance and suppression of inflammatory responses. In this review, we synthesize the current state of knowledge on the roles of DAB2 in the cells of the innate and adaptive immune system, with particular focus on antigen presenting cells (APCs; macrophages and dendritic cells) and regulatory T cells (Tregs). The emerging role of DAB2 in the immune system is that of an immunoregulatory molecule with significant roles in Treg-mediated immunosuppression, and suppression of TLR signaling in APC. DAB2 itself is downregulated by inflammatory stimuli, an event that likely contributes to the immunogenic function of APC. However, contrary findings have been described in neuroinflammatory disorders, thus suggesting a highly context-specific roles for DAB2 in immune cell regulation. There is need for better understanding of DAB2 regulation and its roles in different immune cells, their specialized sub-populations, and their responses under specific inflammatory conditions.
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Affiliation(s)
| | - Fayez K Ghishan
- Department of Pediatrics, University of Arizona, Tucson, AZ, United States
| | - Pawel R Kiela
- Department of Pediatrics, University of Arizona, Tucson, AZ, United States.,Department of Immunobiology, University of Arizona, Tucson, AZ, United States
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