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Shandilya UK, Wu X, McAllister C, Mutharia L, Karrow NA. Impact of Mycobacterium avium subsp. paratuberculosis infection on bovine IL10RA knockout mammary epithelial (MAC-T) cells. In Vitro Cell Dev Biol Anim 2023; 59:214-223. [PMID: 37071310 DOI: 10.1007/s11626-023-00758-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 03/15/2023] [Indexed: 04/19/2023]
Abstract
Mycobacterium avium subsp. Paratuberculosis (MAP) is an intracellular pathogen that causes Johne's disease (JD) in cattle and other ruminants. IL10RA encodes the alpha chain of the IL-10 receptor that binds the cytokine IL-10, and is one of the candidate genes that have been found to be associated with JD infection status. In this study, a previously developed IL10RA knockout (IL10RAKO) bovine mammary epithelial (MAC-T) cell line and wild-type (WT) MAC-T cells were infected with live MAP for 72 h to identify potential immunoregulatory miRNAs, inflammatory genes, and cytokines/chemokines impacted by MAP infection in the presence/absence of IL10RA. Cytokine and chemokine concentrations in culture supernatants were measured by multiplexing immunoassay. Total RNA was extracted from the MAC-T cells, and qPCR was performed to determine the expression of inflammatory genes and selected bovine miRNAs. Results showed that the levels of TNF-α, IL-6, CXCL8, CXCL10, CCL2, and CCL3 were significantly induced in WT MAC-T cells and IL-10 was significantly inhibited post-MAP infection. However, IL10RAKO MAC-T cells had greater secretion of TNF-α, IL-6, IFN-γ, CCL3, CCL4, CXCL8, and CXCL10, and lower secretion of VEGF-α. Moreover, the expression of inflammatory genes (TNF-α, IL-1α, IL-6) was also more significantly induced in IL10RAKO cells than in WT MAC-T cells post-MAP-infection, and unlike the WT cells, anti-inflammatory cytokines IL-10 and SOCS3 and chemokines CCL2 were not significantly induced. In addition, the expression of miRNAs (miR133b, miR-92a, and miR-184) was increased in WT MAC-T cells post-MAP-infection; however, there was no significant induction of these miRNAs in the IL10RAKO cells, which suggests IL10 receptor is somehow involved in regulating the miRNA response to MAP infection. Target gene function analysis further suggests that miR-92a may be involved in interleukin signaling, and miR-133b and miR-184 may be involved in other signaling pathways. These findings support the involvement of IL10RA in the regulation of innate immune response to MAP.
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Affiliation(s)
- Umesh K Shandilya
- Department of Animal Biosciences, University of Guelph, 50 Stone Rd. E, Guelph, ON, N1G2W1, Canada
| | - Xiang Wu
- Department of Animal Biosciences, University of Guelph, 50 Stone Rd. E, Guelph, ON, N1G2W1, Canada
| | - Caitlin McAllister
- Department of Animal Biosciences, University of Guelph, 50 Stone Rd. E, Guelph, ON, N1G2W1, Canada
| | - Lucy Mutharia
- Department of Molecular and Cellular Biology, University of Guelph, 50 Stone Rd. E, Guelph, ON, Canada
| | - Niel A Karrow
- Department of Animal Biosciences, University of Guelph, 50 Stone Rd. E, Guelph, ON, N1G2W1, Canada.
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Zhou C, Sun P, Xu Y, Chen Y, Huang Y, Hamblin MH, Foley L, Hitchens TK, Li S, Yin K. Genetic Deficiency of MicroRNA-15a/16-1 Confers Resistance to Neuropathological Damage and Cognitive Dysfunction in Experimental Vascular Cognitive Impairment and Dementia. Adv Sci (Weinh) 2022; 9:e2104986. [PMID: 35403823 PMCID: PMC9189640 DOI: 10.1002/advs.202104986] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 02/22/2022] [Indexed: 05/24/2023]
Abstract
Chronic cerebral hypoperfusion-derived brain damage contributes to the progression of vascular cognitive impairment and dementia (VCID). Cumulative evidence has shown that microRNAs (miRs) are emerging as novel therapeutic targets for CNS disorders. In this study, it is sought to determine the regulatory role of miR-15a/16-1 in VCID. It is found that miR-15a/16-1 knockout (KO) mice exhibit less cognitive and sensorimotor deficits following VCID. Genetic deficiency of miR-15a/16-1 in VCID mice also mitigate myelin degeneration, axonal injury, and neuronal loss. Mechanistically, miR-15a/16-1 binds to the 3'-UTR of AKT3 and IL-10RA. Genetic deletion of miR-15a/16-1 increases AKT3 and IL-10RA expression in VCID brains, and intranasal delivery of AKT3 and IL-10RA siRNA-loaded nanoparticles partially reduce brain protection and cognitive recovery in miR-15a/16-1 KO mice after VCID. In conclusion, the miR-15a/16-1-IL/10RA/AKT3 axis plays a critical role in regulating vascular brain damage and cognitive decline after VCID. Targeting miR-15a/16-1 is a novel therapeutic approach for the treatment of VCID.
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Affiliation(s)
- Chao Zhou
- Pittsburgh Institute of Brain Disorders & RecoveryDepartment of NeurologyUniversity of Pittsburgh School of MedicinePittsburghPA15213USA
| | - Ping Sun
- Pittsburgh Institute of Brain Disorders & RecoveryDepartment of NeurologyUniversity of Pittsburgh School of MedicinePittsburghPA15213USA
| | - Yang Xu
- Pittsburgh Institute of Brain Disorders & RecoveryDepartment of NeurologyUniversity of Pittsburgh School of MedicinePittsburghPA15213USA
| | - Yuang Chen
- Center for PharmacogeneticsUniversity of Pittsburgh School of PharmacyPittsburghPA15213USA
| | - Yixian Huang
- Center for PharmacogeneticsUniversity of Pittsburgh School of PharmacyPittsburghPA15213USA
| | - Milton H. Hamblin
- Tulane University Health Sciences CenterTulane UniversityNew OrleansLA70112USA
| | - Lesley Foley
- Animal Imaging CenterDepartment of NeurobiologyUniversity of Pittsburgh School of MedicinePittsburghPA15203USA
| | - T. Kevin Hitchens
- Animal Imaging CenterDepartment of NeurobiologyUniversity of Pittsburgh School of MedicinePittsburghPA15203USA
| | - Song Li
- Center for PharmacogeneticsUniversity of Pittsburgh School of PharmacyPittsburghPA15213USA
| | - Ke‐Jie Yin
- Pittsburgh Institute of Brain Disorders & RecoveryDepartment of NeurologyUniversity of Pittsburgh School of MedicinePittsburghPA15213USA
- Geriatric ResearchEducation and Clinical CenterVeterans Affairs Pittsburgh Healthcare SystemPittsburghPA15240USA
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Ahn YH, Hong SO, Kim JH, Noh KH, Song KH, Lee YH, Jeon JH, Kim DW, Seo JH, Kim TW. The siRNA cocktail targeting interleukin 10 receptor and transforming growth factor-β receptor on dendritic cells potentiates tumour antigen-specific CD8(+) T cell immunity. Clin Exp Immunol 2015; 181:164-78. [PMID: 25753156 DOI: 10.1111/cei.12620] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2015] [Indexed: 12/23/2022] Open
Abstract
Dendritic cells (DCs) are promising therapeutic agents in the field of cancer immunotherapy due to their intrinsic immune-priming capacity. The potency of DCs, however, is readily attenuated immediately after their administration in patients as tumours and various immune cells, including DCs, produce various immunosuppressive factors such as interleukin (IL)-10 and transforming growth factor (TGF)-β that hamper the function of DCs. In this study, we used small interfering RNA (siRNA) to silence the expression of endogenous molecules in DCs, which can sense immunosuppressive factors. Among the siRNAs targeting various immunosuppressive molecules, we observed that DCs transfected with siRNA targeting IL-10 receptor alpha (siIL-10RA) initiated the strongest antigen-specific CD8(+) T cell immune responses. The potency of siIL-10RA was enhanced further by combining it with siRNA targeting TGF-β receptor (siTGF-βR), which was the next best option during the screening of this study, or the previously selected immunoadjuvant siRNA targeting phosphatase and tensin homologue deleted on chromosome 10 (PTEN) or Bcl-2-like protein 11 (BIM). In the midst of sorting out the siRNA cocktails, the cocktail of siIL-10RA and siTGF-βR generated the strongest antigen-specific CD8(+) T cell immunity. Concordantly, the knock-down of both IL-10RA and TGF-βR in DCs induced the strongest anti-tumour effects in the TC-1 P0 tumour model, a cervical cancer model expressing the human papillomavirus (HPV)-16 E7 antigen, and even in the immune-resistant TC-1 (P3) tumour model that secretes more IL-10 and TGF-β than the parental tumour cells (TC-1 P0). These results provide the groundwork for future clinical development of the siRNA cocktail-mediated strategy by co-targeting immunosuppressive molecules to enhance the potency of DC-based vaccines.
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Affiliation(s)
- Y-H Ahn
- Division of Infection and Immunology, Graduate School of Medicine, Korea University.,Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Korea
| | - S-O Hong
- Division of Infection and Immunology, Graduate School of Medicine, Korea University.,Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Korea
| | - J H Kim
- Division of Infection and Immunology, Graduate School of Medicine, Korea University.,Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Korea
| | - K H Noh
- Division of Infection and Immunology, Graduate School of Medicine, Korea University.,Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Korea.,Department of Gynecologic Oncology and Reproductive Medicine, University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - K-H Song
- Division of Infection and Immunology, Graduate School of Medicine, Korea University.,Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Korea
| | - Y-H Lee
- Division of Infection and Immunology, Graduate School of Medicine, Korea University.,Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Korea
| | | | - D-W Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Korea
| | - J H Seo
- Division of Oncology, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Korea
| | - T W Kim
- Division of Infection and Immunology, Graduate School of Medicine, Korea University.,Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Korea
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