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Mukherjee S, Chakraborty S, Basak U, Pati S, Dutta A, Dutta S, Roy D, Banerjee S, Ray A, Sa G, Das T. Breast cancer stem cells generate immune-suppressive T regulatory cells by secreting TGFβ to evade immune-elimination. Discov Oncol 2023; 14:220. [PMID: 38038865 PMCID: PMC10692020 DOI: 10.1007/s12672-023-00787-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 09/06/2023] [Indexed: 12/02/2023] Open
Abstract
Cancer stem cells (CSCs), being the primary contributors in tumor initiation, metastasis, and relapse, ought to have seminal roles in evasion of immune surveillance. Tumor-promoting CD4+CD25+FOXP3+ T-regulatory cells (Tregs) have been described to abolish host defense mechanisms by impeding the activities of other immune cells including effector T cells. However, whether CSCs can convert effector T cells to immune-suppressive Treg subset, and if yes, the mechanism underlying CSC-induced Treg generation, are limitedly studied. In this regard, we observed a positive correlation between breast CSC and Treg signature markers in both in-silico and immunohistochemical analyses. Mirroring the conditions during tumor initiation, low number of CSCs could successfully generate CD4+CD25+FOXP3+ Treg cells from infiltrating CD4+ T lymphocytes in a contact-independent manner. Suppressing the proliferation potential as well as IFNγ production capacity of effector T cells, these Treg cells might be inhibiting antitumor immunity, thereby hindering immune-elimination of CSCs during tumor initiation. Furthermore, unlike non-stem cancer cells (NSCCs), CSCs escaped doxorubicin-induced apoptosis, thus constituting major surviving population after three rounds of chemotherapy. These drug-survived CSCs were also able to generate CD4+CD25+FOXP3+ Treg cells. Our search for the underlying mechanism further unveiled the role of CSC-shed immune-suppressive cytokine TGFβ, which was further increased by chemotherapy, in generating tumor Treg cells. In conclusion, during initiation as well as after chemotherapy, when NSCCs are not present in the tumor microenvironment, CSCs, albeit present in low numbers, generate immunosuppressive CD4+CD25+FOXP3+ Treg cells in a contact-independent manner by shedding high levels of immune-suppressive Treg-polarizing cytokine TGFβ, thus escaping immune-elimination and initiating the tumor or causing tumor relapse.
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Affiliation(s)
- Sumon Mukherjee
- Division of Molecular Medicine, Bose Institute, P-1/12, Calcutta Improvement Trust Scheme VII M, Kolkata, 700054, India
| | - Sourio Chakraborty
- Division of Molecular Medicine, Bose Institute, P-1/12, Calcutta Improvement Trust Scheme VII M, Kolkata, 700054, India
| | - Udit Basak
- Division of Molecular Medicine, Bose Institute, P-1/12, Calcutta Improvement Trust Scheme VII M, Kolkata, 700054, India
| | - Subhadip Pati
- Division of Molecular Medicine, Bose Institute, P-1/12, Calcutta Improvement Trust Scheme VII M, Kolkata, 700054, India
| | - Apratim Dutta
- Division of Molecular Medicine, Bose Institute, P-1/12, Calcutta Improvement Trust Scheme VII M, Kolkata, 700054, India
| | - Saikat Dutta
- Division of Molecular Medicine, Bose Institute, P-1/12, Calcutta Improvement Trust Scheme VII M, Kolkata, 700054, India
| | - Dia Roy
- Division of Molecular Medicine, Bose Institute, P-1/12, Calcutta Improvement Trust Scheme VII M, Kolkata, 700054, India
| | - Shruti Banerjee
- Division of Molecular Medicine, Bose Institute, P-1/12, Calcutta Improvement Trust Scheme VII M, Kolkata, 700054, India
| | - Arpan Ray
- Department of Pathology, ESI-PGIMSR, Medical College Hospital and ODC (EZ), Kolkata, India
| | - Gaurisankar Sa
- Division of Molecular Medicine, Bose Institute, P-1/12, Calcutta Improvement Trust Scheme VII M, Kolkata, 700054, India
| | - Tanya Das
- Division of Molecular Medicine, Bose Institute, P-1/12, Calcutta Improvement Trust Scheme VII M, Kolkata, 700054, India.
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Worku D, Hussen J, De Matteis G, Schusser B, Alhussien MN. Candidate genes associated with heat stress and breeding strategies to relieve its effects in dairy cattle: a deeper insight into the genetic architecture and immune response to heat stress. Front Vet Sci 2023; 10:1151241. [PMID: 37771947 PMCID: PMC10527375 DOI: 10.3389/fvets.2023.1151241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 08/31/2023] [Indexed: 09/30/2023] Open
Abstract
The need for food products of animal origin is increasing worldwide. Satisfying these needs in a way that has minimal impact on the environment requires cutting-edge technologies and techniques to enhance the genetic quality of cattle. Heat stress (HS), in particular, is affecting dairy cattle with increasing frequency and severity. As future climatic challenges become more evident, identifying dairy cows that are more tolerant to HS will be important for breeding dairy herds that are better adapted to future environmental conditions and for supporting the sustainability of dairy farming. While research into the genetics of HS in the context of the effect of global warming on dairy cattle is gaining momentum, the specific genomic regions involved in heat tolerance are still not well documented. Advances in omics information, QTL mapping, transcriptome profiling and genome-wide association studies (GWAS) have identified genomic regions and variants associated with tolerance to HS. Such studies could provide deeper insights into the genetic basis for response to HS and make an important contribution to future breeding for heat tolerance, which will help to offset the adverse effects of HS in dairy cattle. Overall, there is a great interest in identifying candidate genes and the proportion of genetic variation associated with heat tolerance in dairy cattle, and this area of research is currently very active worldwide. This review provides comprehensive information pertaining to some of the notable recent studies on the genetic architecture of HS in dairy cattle, with particular emphasis on the identified candidate genes associated with heat tolerance in dairy cattle. Since effective breeding programs require optimal knowledge of the impaired immunity and associated health complications caused by HS, the underlying mechanisms by which HS modulates the immune response and renders animals susceptible to various health disorders are explained. In addition, future breeding strategies to relieve HS in dairy cattle and improve their welfare while maintaining milk production are discussed.
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Affiliation(s)
- Destaw Worku
- Department of Animal Science, College of Agriculture, Food and Climate Sciences, Injibara University, Injibara, Ethiopia
| | - Jamal Hussen
- Department of Microbiology, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Giovanna De Matteis
- Council for Agricultural Research and Economics, CREA Research Centre for Animal Production and Aquaculture, Monterotondo, Rome, Italy
| | - Benjamin Schusser
- Reproductive Biotechnology, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Mohanned Naif Alhussien
- Reproductive Biotechnology, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
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Shan Y, Zhang B, Chen L, Zhang H, Jiang C, You Q, Li Y, Han H, Zhu J. Herpesvirus entry mediator regulates the transduction of Tregs via STAT5/Foxp3 signaling pathway in ovarian cancer cells. Anticancer Drugs 2023; 34:73-80. [PMID: 35946515 DOI: 10.1097/cad.0000000000001336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The ratio of regulatory T cells (Treg) in peripheral blood of cancer patients has a closely correlation to the occurrence and development of ovarian cancer. In this study, our aim to explore the expression of herpesvirus entry mediator (HVEM) in ovarian cancer and its correlation with Tregs. The expression of HVEM in peripheral blood of ovarian cancer patients was detected by ELISA, and the ratio of CD4+ CD25 + Foxp3 positive Tregs cells was detected by flow cytometry. Ovarian cancer cell lines with high- and low-HVEM expression were constructed. CD4+ cells were co-cultured with ovarian cancer (OC) cells, and the expressions of IL-2 and TGF-β1 in the supernatant of cells were detected by ELISA, and western blot was used to detect the expressions of STAT5, p-STAT5, and Foxp3. The results indicated that the number of Treg cells in the peripheral blood of OC patients increased, and the expression of HVEM increased, the two have a certain correlation. At the same time, the overexpression of HVEM promoted the expression of cytokines IL-2 and TGF- β1, promoted the activation of STAT5 and the expression of Foxp3, leading to an increase in the positive rate of Treg, while the HVEM gene silence group was just the opposite. Our results showed that the expression of HVEM in OC cells has a positive regulation effect on Tregs through the STAT5/Foxp3 signaling pathway. To provide experimental basis and related mechanism for the clinical treatment of ovarian cancer.
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Affiliation(s)
- Ying Shan
- Department of Obstetrics and Gynecology
| | | | - Li Chen
- Department of Obstetrics and Gynecology
| | - Hu Zhang
- Department of Obstetrics and Gynecology
| | - Cui Jiang
- Department of Obstetrics and Gynecology
| | - Qinghua You
- Department of Pathology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Yanyi Li
- Department of Obstetrics and Gynecology
- Department of Health Science, Graduate School of Medical, Osaka University, Osaka, Japan
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Ikehata M, Konnai S, Okagawa T, Abe K, Honma M, Kitamura T, Maekawa N, Suzuki Y, Murata S, Ohashi K. In vitro evaluation of Lactiplantibacillus plantarum HOKKAIDO strain, effective lactic acid bacteria for calf diarrhea. Front Vet Sci 2023; 10:1145445. [PMID: 37089407 PMCID: PMC10113454 DOI: 10.3389/fvets.2023.1145445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 03/16/2023] [Indexed: 04/25/2023] Open
Abstract
Calf diarrhea adversely affects growth and sometimes results in mortality, leading to severe economic losses to the cattle industry. Antibiotics are useful in the treatment against bacterial diarrhea, but not against viral, protozoan, and antibiotic-resistant bacterial diarrhea. Therefore, there are growing requirements for a novel control method for calf diarrhea. Probiotics have been considered promising candidates for preventive and supportive therapy for calf diarrhea for many years. A recent study has revealed that Lactiplantibacillus plantarum HOKKAIDO strain (Lp-HKD) reduces intestinal pathology and the severity of diarrhea in bovine rotavirus (BRV)-infected calves. Lp-HKD is known to enhance the function of human immune cells and expected to be used as probiotics for humans. Therefore, it is hypothesized that Lp-HKD modulates antiviral immune response in cattle and provide the clinical benefits in BRV-infected calves. However, the detailed mechanism of Lp-HKD-induced immunomodulation remains unknown. Thus, this study aimed to elucidate the immunomodulatory and antiviral effects of Lp-HKD in cattle. Cultivation assay of bovine peripheral blood mononuclear cells (PBMCs) showed that live and heat-killed Lp-HKD stimulates the production of interleukin-1β (IL-1β), IL-6, IL-10, and interferon-γ (IFN-γ) from PBMCs. Stimulation by heat-killed Lp-HKD yielded stronger cytokine production than stimulation by the live Lp-HKD. Additionally, CD14+ monocytes were identified as major producers of IL-1β, IL-6, and IL-10 under Lp-HKD stimulation; however, IFN-γ was mainly produced from immune cells other than CD14+ monocytes. Depletion of CD14+ monocytes from the PBMCs cultivation strongly decreased cytokine production induced by heat-killed Lp-HKD. The inhibition of toll-like receptor (TLR) 2/4 signaling decreased IL-1β and IL-6 production induced by live Lp-HKD and IL-1β, IL-6, and IFN-γ production induced by heat-killed Lp-HKD. Furthermore, live or heat-killed Lp-HKD also activated T cells and their production of IFN-γ and tumor necrosis factor-α. Then, culture supernatants of bovine PBMCs treated with heat-killed Lp-HKD demonstrated antiviral effects against BRV in vitro. In conclusion, this study demonstrated that Lp-HKD activates the functions of bovine immune cells via TLR2/4 signaling and exerts an antiviral effect against BRV through the induction of antiviral cytokines. Lp-HKD could be useful for the prevention and treatment of calf diarrhea through its immune activating effect.
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Affiliation(s)
- Mari Ikehata
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Satoru Konnai
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
- Institute for Vaccine Research and Development (HU-IVReD), Hokkaido University, Sapporo, Japan
- *Correspondence: Satoru Konnai
| | - Tomohiro Okagawa
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Kentaro Abe
- Hokkaido Research Station, Snow Brand Seed Co., Ltd., Naganuma, Japan
| | - Mitsuru Honma
- Hokkaido Research Station, Snow Brand Seed Co., Ltd., Naganuma, Japan
| | - Toru Kitamura
- Hokkaido Research Station, Snow Brand Seed Co., Ltd., Naganuma, Japan
| | - Naoya Maekawa
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Yasuhiko Suzuki
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
- Institute for Vaccine Research and Development (HU-IVReD), Hokkaido University, Sapporo, Japan
- Division of Bioresources, International Institute for Zoonosis Control, Hokkaido University, Sapporo, Japan
- Global Station for Zoonosis Control, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan
| | - Shiro Murata
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Kazuhiko Ohashi
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
- International Affairs Office, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
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Prostaglandin E 2-Induced Immune Suppression via Cytotoxic T-Lymphocyte Antigen 4 in Paratuberculosis. Infect Immun 2022; 90:e0021022. [PMID: 36102658 PMCID: PMC9584316 DOI: 10.1128/iai.00210-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Paratuberculosis is a chronic enteritis of ruminants caused by the facultative intracellular pathogen Mycobacterium avium subsp. paratuberculosis. The Th1 response inhibits the proliferation of M. avium subsp. paratuberculosis during the early subclinical stage. However, we have previously shown that immune inhibitory molecules, such as prostaglandin E2 (PGE2), suppress M. avium subsp. paratuberculosis-specific Th1 responses as the disease progresses. To date, the mechanism underlying immunosuppression during M. avium subsp. paratuberculosis infection has not been elucidated. Therefore, in the present study, we investigated the function of cytotoxic T-lymphocyte antigen 4 (CTLA-4) expressed by peripheral blood mononuclear cells (PBMCs) from cattle with paratuberculosis because CTLA-4 expression is known to be elevated in T cells under an M. avium subsp. paratuberculosis experimental infection. M. avium subsp. paratuberculosis antigen induced CTLA-4 expression in T cells from cattle experimentally infected with M. avium subsp. paratuberculosis. Interestingly, both PGE2 and an E prostanoid 4 agonist also induced CTLA-4 expression in T cells. In addition, a functional assay with a bovine CTLA-4-immunogobulin fusion protein (CTLA-4-Ig) indicated that CTLA-4 inhibited gamma interferon (IFN-γ) production in M. avium subsp. paratuberculosis-stimulated PBMCs, while blockade by anti-bovine CTLA-4 monoclonal antibody increased the secretion of IFN-γ and tumor necrosis factor alpha production in these PBMCs. These preliminary findings show that PGE2 has immunosuppressive effects via CTLA-4 to M. avium subsp. paratuberculosis. Therefore, it is necessary to clarify in the future whether CTLA-4-mediated immunosuppression facilitates disease progression of paratuberculosis in cattle.
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Marin-Flamand E, Araiza-Hernandez DM, Vargas-Ruiz A, Rangel-Rodríguez IC, González-Tapia LA, Ramírez-Álvarez H, Hernández-Balderas RJ, García-Camacho LA. Relationship of persistent lymphocytosis, antibody titers, and proviral load with expression of interleukin-12, interferon-γ, interleukin-2, interleukin-4, interleukin-10, and transforming growth factor-β in cows infected with bovine leukemia virus from a high-prevalence dairy complex. CANADIAN JOURNAL OF VETERINARY RESEARCH = REVUE CANADIENNE DE RECHERCHE VETERINAIRE 2022; 86:269-285. [PMID: 36211217 PMCID: PMC9536356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 06/18/2022] [Indexed: 04/03/2023]
Abstract
Bovine leukemia virus (BLV) subclinical infection promotes persistent lymphocytosis (PL), which is related to susceptibility and progression to lymphoma. Moreover, lymphocyte counts directly correlate with BLV antibody titers and proviral load, and cell immune responses are considered atypical due to immune suppression. In order to determine the relationship of PL, antibody titers, and proviral load with interleukin (IL)-12, interferon (IFN)-γ, IL-2, IL-4, IL-10, and transforming growth factor (TGF)-β expression in a 3-month interval, 58 cows were selected (30 BLV+ and 28 BLV-) from a high-prevalence dairy herd to complete 3 monthly blood samplings for the assessment of PL, BLV antibody titers, BLV proviral load, and IL-12, IFN-γ, IL-2, IL-4, IL-10, and TGF-β expression. At sampling conclusion, the BLV-infected cows were grouped according to PL, BLV proviral load, and BLV antibody titers as follows: BLV+PL+ (n = 16) and BLV+PL- (n = 14); high proviral load (HPL) (n = 18) and low proviral load (LPL) (n = 13); high antibody titers (HAT) (n = 17) and low antibody titers (LAT) (n = 14). The BLV+PL+ cows showed significantly higher proviral load and antibody titers than the BLV+PL- group; however, the former suggested spread presumably unrelated to lymphoma outcome, because HPL was observed in PL- cows in the last sampling. Consistent with the data, a higher antibody response strongly indicated BLV susceptibility since it was linked to PL+ occurrence and a cytokine profile compatible with immune suppression. Furthermore, a reversion to lower antibody titers was observed in cows with HPL far ahead of time, most likely due to long-term immune suppression. In addition, high expression of IL-10 and TGF-β was associated with reduced IL-12, IFN-γ, IL-2, and IL-4 expression alongside PL, HAT, and HPL in BLV-infected cows, suggesting an IL-10- and TGF-β-induced immune suppression. The IL-10 expression was increasing throughout, implying disease progression, as described. In conclusion, the proliferative expansion of lymphocytes known as PL might enhance a regulatory-rich cell population (Bregs and/or Tregs) that secretes IL-10 and TGF-β, leading to immune suppression. Further studies must be conducted regarding the types of regulatory cells involved in BLV-induced immune suppression.
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Affiliation(s)
- Ernesto Marin-Flamand
- Department of Biological Sciences, College of Superior Studies, National University of Mexico, Cuautitlán-Teoloyucan km 2.5, 54714 Cuautitlán Izcalli, Mexico City, Mexico
| | - Diana Michele Araiza-Hernandez
- Department of Biological Sciences, College of Superior Studies, National University of Mexico, Cuautitlán-Teoloyucan km 2.5, 54714 Cuautitlán Izcalli, Mexico City, Mexico
| | - Alejandro Vargas-Ruiz
- Department of Biological Sciences, College of Superior Studies, National University of Mexico, Cuautitlán-Teoloyucan km 2.5, 54714 Cuautitlán Izcalli, Mexico City, Mexico
| | - Ignacio Carlos Rangel-Rodríguez
- Department of Biological Sciences, College of Superior Studies, National University of Mexico, Cuautitlán-Teoloyucan km 2.5, 54714 Cuautitlán Izcalli, Mexico City, Mexico
| | - Lilia A González-Tapia
- Department of Biological Sciences, College of Superior Studies, National University of Mexico, Cuautitlán-Teoloyucan km 2.5, 54714 Cuautitlán Izcalli, Mexico City, Mexico
| | - Hugo Ramírez-Álvarez
- Department of Biological Sciences, College of Superior Studies, National University of Mexico, Cuautitlán-Teoloyucan km 2.5, 54714 Cuautitlán Izcalli, Mexico City, Mexico
| | - Ruperto Javier Hernández-Balderas
- Department of Biological Sciences, College of Superior Studies, National University of Mexico, Cuautitlán-Teoloyucan km 2.5, 54714 Cuautitlán Izcalli, Mexico City, Mexico
| | - Lucía Angélica García-Camacho
- Department of Biological Sciences, College of Superior Studies, National University of Mexico, Cuautitlán-Teoloyucan km 2.5, 54714 Cuautitlán Izcalli, Mexico City, Mexico
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Gao YR, Sun XZ, Li R, Tang CL, Zhang RH, Zhu YW, Li XR, Pan Q. The effect of regulatory T cells in Schistosoma-mediated protection against type 2 diabetes. Acta Trop 2021; 224:106073. [PMID: 34487719 DOI: 10.1016/j.actatropica.2021.106073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 07/22/2021] [Accepted: 07/26/2021] [Indexed: 12/28/2022]
Abstract
In western societies, the prevalence of type 2 diabetes (T2D) is related to the hygiene hypothesis, which implies that reduced exposure to infectious factors results in a loss of the immune stimulation necessary to form the immune system during development. In fact, it has been reported that parasites, such as Schistosoma, can improve or prevent the development of T2D, which may be related to the activity of immune cells, including regulatory T cells (Tregs). Hence, Schistosoma, Tregs, and T2D share a close relationship. Schistosoma infection and the molecules released can lead to an increase in Tregs, which play an important role in the suppression of T2D. In this review, we provide an overview of the role of Tregs in the response to Schistosoma infection and the protective mechanism of Schistosoma-related molecular products against T2D.
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Affiliation(s)
- Yan-Ru Gao
- Medical Department, Wuhan City College, Wuhan, 430083, China
| | - Xue-Zhi Sun
- Wuhan Pulmonary Hospital, Wuhan Institute for Tuberculosis Control, Wuhan 430030, China
| | - Ru Li
- Wuchang Hospital Affiliated to Wuhan University of Science and Technology, Wuhan 430063, China
| | - Chun-Lian Tang
- Wuchang Hospital Affiliated to Wuhan University of Science and Technology, Wuhan 430063, China
| | - Rong-Hui Zhang
- Wuchang Hospital Affiliated to Wuhan University of Science and Technology, Wuhan 430063, China
| | - Ya-Wen Zhu
- Wuchang Hospital Affiliated to Wuhan University of Science and Technology, Wuhan 430063, China
| | - Xiu-Rong Li
- Wuchang Hospital Affiliated to Wuhan University of Science and Technology, Wuhan 430063, China.
| | - Qun Pan
- Wuchang Hospital Affiliated to Wuhan University of Science and Technology, Wuhan 430063, China.
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Sajiki Y, Konnai S, Ikenaka Y, Okagawa T, Maekawa N, Logullo C, da Silva Vaz I, Murata S, Ohashi K. Prostaglandin-related immune suppression in cattle. Vet Immunol Immunopathol 2021; 236:110238. [PMID: 33857743 DOI: 10.1016/j.vetimm.2021.110238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/08/2021] [Accepted: 04/02/2021] [Indexed: 12/31/2022]
Abstract
Prostaglandins (PGs) are lipid mediators derived from arachidonic acid by several enzymes including cyclooxygenase (COX)-1 and COX-2. We have previously shown that PGE2 regulates immune responses, such as Th1 cytokine production and T-cell proliferation, in cattle. However, it is still unclear whether other PGs are involved in the regulation of immune responses in cattle. Here, immunosuppressive profiles of PGs (PGA1, PGB2, PGD2, PGE2, PGF1α and PGF2α) were firstly examined using bovine peripheral blood mononuclear cells (PBMCs). In addition to PGE2, PGA1 significantly inhibited Th1 cytokine production from PBMCs in cattle. Further analyses focusing on PGA1 revealed that treatment with PGA1 in the presence of concanavalin A (con A) downregulated CD69, an activation marker, and IFN-γ expression in both CD4+ and CD8+ T cells. Sorted CD3+ T cells stimulated with con A were cultivated with PGA1, and IFN-γ and TNF-α concentrations decreased upon PGA1 treatment. Taken together, these results suggest that the treatment with PGA1in vitro inhibits T-cell activation, especially Th1 cytokine production, in cattle.
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Affiliation(s)
- Y Sajiki
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - S Konnai
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan; Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan.
| | - Y Ikenaka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan; Translational Research Unit, Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Kita-18 Nishi-9, Kita-ku, Sapporo, 060-0818, Japan; Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - T Okagawa
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - N Maekawa
- Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - C Logullo
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Laboratório Integrado de Morfologia, NUPEM-UFRJ, Macaé, RJ, Brazil
| | - I da Silva Vaz
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91501-970, RS, Brazil
| | - S Murata
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan; Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - K Ohashi
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan; Department of Advanced Pharmaceutics, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
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