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Fang J, Wei H, Wang H, Wang J, Liu H, Chen Y, Chen L, Lu L, Zhang Q, Pan R, Cui E, Luo X. Human placenta-derived mesenchymal stem cell administration protects against acute lung injury in a mouse model. J Cell Biochem 2023; 124:1249-1258. [PMID: 37450693 DOI: 10.1002/jcb.30445] [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: 03/28/2023] [Revised: 06/08/2023] [Accepted: 07/03/2023] [Indexed: 07/18/2023]
Abstract
This study aims to investigate the effect of placenta-derived mesenchymal stem cells (PMSCs) administration on tissue repair following acute lung injury (ALI). PMSCs were transplanted intravenously to a mouse model of lipopolysaccharide-induced ALI. The therapeutic effects were determined by evaluating several indicators, including pathology; the wet/dry ratio of the lungs; blood gas analysis; the total protein content, cell numbers, and the activity of myeloperoxidase (MPO) in bronchial alveolar lavage fluid (BALF); and the levels of anti-inflammatory and proinflammatory cytokines in serum and BALF. To investigate the underlying mechanism, PMSC-derived exosomes were used for ALI treatment. Administration of PMSCs improved the degree of lung injury, reduced inflammation, increased the expression levels of anti-inflammatory cytokines, and protected lung function. As expected, the effects of PMSC-derived exosomes in the ALI model were similar to those of PMSCs, both in terms of improved lung function and reduced inflammation. These findings suggest that PMSCs have ameliorating effects on ALI that are potentially mediated via their secreted exosomes.
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Affiliation(s)
- Junbiao Fang
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Hanwei Wei
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Hongfa Wang
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Junkai Wang
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Huizi Liu
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Yue Chen
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Long Chen
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Ling Lu
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Qiang Zhang
- Key Laboratory of Cell-Based Drug and Applied Technology Development in Zhejiang Province, Hangzhou, China
| | - Ruolang Pan
- Key Laboratory of Cell-Based Drug and Applied Technology Development in Zhejiang Province, Hangzhou, China
| | - Enhai Cui
- Huzhou Central Hospital, Zhejiang University Huzhou Hospital, Huzhou, China
| | - Xiaopan Luo
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
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Wang X, Chen M, Ma S, Ding Y, Zhou C, Yuan Y. HIV-1 Tat Protein-Mediated Inflammatory Response Inhibits the Erythroid Hematopoietic Support Function of Bone Marrow Mesenchymal Stem Cells. AIDS Res Hum Retroviruses 2022; 38:753-763. [PMID: 35972747 DOI: 10.1089/aid.2022.0011] [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: 01/25/2023] Open
Abstract
Although combination antiretroviral therapy is widely used to treat HIV-1 infection, anemia affects the health and quality of life in a large number of these patients. The proliferation and differentiation of bone marrow mesenchymal stem cells (BMSCs), as important support cells in the hematopoietic microenvironment, can be affected by HIV-1 Tat protein. In this study, we explored the mechanism underlying the effect of Tat protein on the hematopoietic support function of BMSCs in erythroid commitment. BMSCs were treated with Tat protein or transfected with Tat mRNA and cocultured with hematopoietic stem cells (HSCs) to detect the number of erythroid colony-forming units (CFUs) and the proportion of mature red blood cells from HSCs. Subsequently, the expression level of a series of erythroid hematopoietic support factors and inflammatory factors in BMSCs after Tat treatment were analyzed. Then, the activation effect of Tat on the mitogen-activated protein kinase/nuclear factor kappa-B (MAPK/NF-κB) pathway, which is an important inflammatory response signaling pathway, was evaluated. The results showed that the number of erythroid CFUs and the production of mature red blood cells supported by BMSCs treated with Tat protein were significantly reduced and the expression of a series of erythroid supporting factors of BMSCs were significantly decreased by Tat protein. Tat-treated BMSCs highly express a variety of inflammatory mediators. Moreover, the expression of P38, p-p38, ERK1/2, p-ERK1/2, JNK1/2, p-JNK1/2, NF-κB, and p-NF-κB was significantly upregulated by Tat protein. In conclusion, Tat protein induces the inflammatory response of BMSCs by activating the MAPK/NF-κB pathway to inhibit the erythroid hematopoietic support function of BMSCs.
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Affiliation(s)
- Xiaoli Wang
- Department of Neurosurgery, Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Meijuan Chen
- Department of Neurosurgery, Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Shinan Ma
- Department of Neurosurgery, Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Yan Ding
- Department of Neurosurgery, Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Chunfang Zhou
- Department of Neurosurgery, Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, Shiyan, China.,Department of Gastroenterology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Yahong Yuan
- Department of Neurosurgery, Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, Shiyan, China
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Lebeau G, Ah-Pine F, Daniel M, Bedoui Y, Vagner D, Frumence E, Gasque P. Perivascular Mesenchymal Stem/Stromal Cells, an Immune Privileged Niche for Viruses? Int J Mol Sci 2022; 23:ijms23148038. [PMID: 35887383 PMCID: PMC9317325 DOI: 10.3390/ijms23148038] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/16/2022] [Accepted: 07/20/2022] [Indexed: 11/16/2022] Open
Abstract
Mesenchymal stem cells (MSCs) play a critical role in response to stress such as infection. They initiate the removal of cell debris, exert major immunoregulatory activities, control pathogens, and lead to a remodeling/scarring phase. Thus, host-derived ‘danger’ factors released from damaged/infected cells (called alarmins, e.g., HMGB1, ATP, DNA) as well as pathogen-associated molecular patterns (LPS, single strand RNA) can activate MSCs located in the parenchyma and around vessels to upregulate the expression of growth factors and chemoattractant molecules that influence immune cell recruitment and stem cell mobilization. MSC, in an ultimate contribution to tissue repair, may also directly trans- or de-differentiate into specific cellular phenotypes such as osteoblasts, chondrocytes, lipofibroblasts, myofibroblasts, Schwann cells, and they may somehow recapitulate their neural crest embryonic origin. Failure to terminate such repair processes induces pathological scarring, termed fibrosis, or vascular calcification. Interestingly, many viruses and particularly those associated to chronic infection and inflammation may hijack and polarize MSC’s immune regulatory activities. Several reports argue that MSC may constitute immune privileged sanctuaries for viruses and contributing to long-lasting effects posing infectious challenges, such as viruses rebounding in immunocompromised patients or following regenerative medicine therapies using MSC. We will herein review the capacity of several viruses not only to infect but also to polarize directly or indirectly the functions of MSC (immunoregulation, differentiation potential, and tissue repair) in clinical settings.
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Affiliation(s)
- Grégorie Lebeau
- Unité de Recherche en Pharmaco-Immunologie (UR-EPI), Université et CHU de La Réunion, 97400 Saint-Denis, France; (G.L.); (F.A.-P.); (M.D.); (Y.B.); (E.F.)
- Laboratoire d’Immunologie Clinique et Expérimentale de la ZOI (LICE-OI), Pôle de Biologie, CHU de La Réunion, 97400 Saint-Denis, France
| | - Franck Ah-Pine
- Unité de Recherche en Pharmaco-Immunologie (UR-EPI), Université et CHU de La Réunion, 97400 Saint-Denis, France; (G.L.); (F.A.-P.); (M.D.); (Y.B.); (E.F.)
- Service Anatomo-Pathologie, CHU de la Réunion, 97400 Saint-Denis, France
| | - Matthieu Daniel
- Unité de Recherche en Pharmaco-Immunologie (UR-EPI), Université et CHU de La Réunion, 97400 Saint-Denis, France; (G.L.); (F.A.-P.); (M.D.); (Y.B.); (E.F.)
- Laboratoire d’Immunologie Clinique et Expérimentale de la ZOI (LICE-OI), Pôle de Biologie, CHU de La Réunion, 97400 Saint-Denis, France
| | - Yosra Bedoui
- Unité de Recherche en Pharmaco-Immunologie (UR-EPI), Université et CHU de La Réunion, 97400 Saint-Denis, France; (G.L.); (F.A.-P.); (M.D.); (Y.B.); (E.F.)
- Laboratoire d’Immunologie Clinique et Expérimentale de la ZOI (LICE-OI), Pôle de Biologie, CHU de La Réunion, 97400 Saint-Denis, France
| | - Damien Vagner
- Service de Médecine Interne, CHU de la Réunion, 97400 Saint-Denis, France;
| | - Etienne Frumence
- Unité de Recherche en Pharmaco-Immunologie (UR-EPI), Université et CHU de La Réunion, 97400 Saint-Denis, France; (G.L.); (F.A.-P.); (M.D.); (Y.B.); (E.F.)
- Laboratoire d’Immunologie Clinique et Expérimentale de la ZOI (LICE-OI), Pôle de Biologie, CHU de La Réunion, 97400 Saint-Denis, France
| | - Philippe Gasque
- Unité de Recherche en Pharmaco-Immunologie (UR-EPI), Université et CHU de La Réunion, 97400 Saint-Denis, France; (G.L.); (F.A.-P.); (M.D.); (Y.B.); (E.F.)
- Laboratoire d’Immunologie Clinique et Expérimentale de la ZOI (LICE-OI), Pôle de Biologie, CHU de La Réunion, 97400 Saint-Denis, France
- Correspondence:
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Abstract
The introduction of antiretroviral therapy (ART) and highly active antiretroviral therapy (HAART) has transformed human immunodeficiency virus (HIV)-1 into a chronic, well-managed disease. However, these therapies do not eliminate all infected cells from the body despite suppressing viral load. Viral rebound is largely due to the presence of cellular reservoirs which support long-term persistence of HIV-1. A thorough understanding of the HIV-1 reservoir will facilitate the development of new strategies leading to its detection, reduction, and elimination, ultimately leading to curative therapies for HIV-1. Although immune cells derived from lymphoid and myeloid progenitors have been thoroughly studied as HIV-1 reservoirs, few studies have examined whether mesenchymal stromal/stem cells (MSCs) can assume this function. In this review, we evaluate published studies which have assessed whether MSCs contribute to the HIV-1 reservoir. MSCs have been found to express the receptors and co-receptors required for HIV-1 entry, albeit at levels of expression and receptor localisation that vary considerably between studies. Exposure to HIV-1 and HIV-1 proteins alters MSC properties in vitro, including their proliferation capacity and differentiation potential. However, in vitro and in vivo experiments investigating whether MSCs can become infected with and harbour latent integrated proviral DNA are lacking. In conclusion, MSCs appear to have the potential to contribute to the HIV-1 reservoir. However, further studies are needed using techniques such as those used to prove that cluster of differentiation (CD)4+ T cells constitute an HIV-1 reservoir before a reservoir function can definitively be ascribed to MSCs.
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Zou W, Xing J, Zou S, Jiang M, Chen X, Chen Q, Liu D, Zhang X, Fu X. HIV-1 LAI Nef blocks the development of hematopoietic stem/progenitor cells into myeloid-erythroid lineage cells. Biol Direct 2021; 16:27. [PMID: 34930406 PMCID: PMC8686389 DOI: 10.1186/s13062-021-00317-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 12/12/2021] [Indexed: 01/07/2023] Open
Abstract
Background A variety of hematopoietic abnormalities are commonly seen in human immunodeficiency virus-1 (HIV-1) infected individuals despite antiviral therapy, but the underlying mechanism remains elusive. Nef plays an important role in HIV-1 induced T cell loss and disease progression, but it is not known whether Nef participates in other hematopoietic abnormalities associated with infection. Results In the current study we investigated the influence of HIV-1LAI Nef (LAI Nef) on the development of hematopoietic stem/progenitor cells (HSPCs) into myeloid-erythroid lineage cells, and found that nef expression in HSPCs blocked their differentiation both in vitro and in humanized mice reconstituted with nef-expressing HSPCs. Conclusions Our novel findings demonstrate LAI Nef compromised the development of myeloid-erythroid lineage cells, and therapeutics targeting Nef would be promising in correcting HIV-1 associated hematopoietic abnormalities. Supplementary Information The online version contains supplementary material available at 10.1186/s13062-021-00317-3.
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Affiliation(s)
- Wei Zou
- Department of Infectious Diseases, The 1St Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China.
| | - Juanjuan Xing
- Department of Burn, The 1st Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Shijie Zou
- Department of Infectious Diseases, The 1St Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Mei Jiang
- Department of Experimental Medicine, The 1st Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Xinping Chen
- Department of Gynecology and Obstetrics, The 1st Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Qi Chen
- Department of Gynecology and Obstetrics, The 1st Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Daozheng Liu
- Department of Gynecology and Obstetrics, The 1st Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Xiangcheng Zhang
- Department of Gynecology and Obstetrics, The 1st Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Xin Fu
- Jiangxi Provincial Key Laboratory of Preventive Medicine, School of Public Health, Nanchang University, Nanchang, 330006, Jiangxi, China
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Mesenchymal Stromal Cells: an Antimicrobial and Host-Directed Therapy for Complex Infectious Diseases. Clin Microbiol Rev 2021; 34:e0006421. [PMID: 34612662 DOI: 10.1128/cmr.00064-21] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
There is an urgent need for new antimicrobial strategies for treating complex infections and emerging pathogens. Human mesenchymal stromal cells (MSCs) are adult multipotent cells with antimicrobial properties, mediated through direct bactericidal activity and modulation of host innate and adaptive immune cells. More than 30 in vivo studies have reported on the use of human MSCs for the treatment of infectious diseases, with many more studies of animal MSCs in same-species models of infection. MSCs demonstrate potent antimicrobial effects against the major classes of human pathogens (bacteria, viruses, fungi, and parasites) across a wide range of infection models. Mechanistic studies have yielded important insight into their immunomodulatory and bactericidal activity, which can be enhanced through various forms of preconditioning. MSCs are being investigated in over 80 clinical trials for difficult-to-treat infectious diseases, including sepsis and pulmonary, intra-abdominal, cutaneous, and viral infections. Completed trials consistently report MSCs to be safe and well tolerated, with signals of efficacy against some infectious diseases. Although significant obstacles must be overcome to produce a standardized, affordable, clinical-grade cell therapy, these studies suggest that MSCs may have particular potential as an adjunct therapy in complex or resistant infections.
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7
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Abstract
OBJECTIVE Despite successful antiviral therapy, the recovery of CD4+ T cells may not be complete in certain HIV-1-infected individuals. In our previous work with humanized mice infected with CXCR4-tropic HIV-1LAI (LAI), viral protein Nef was found the major factor determining rapid loss of both CD4+ T cells and CD4+CD8+ thymocytes but its effect on early T-cell development is unknown. The objective of this study is to investigate the influence of LAI Nef on the development of hematopoietic stem/progenitor cells (HSPCs) into T lymphoid cells. DESIGN HSPC-OP9-DL1 cell co-culture and humanized mouse model was used to investigate the objective of our study in vitro and in vivo. RNA-seq was exploited to study the change of gene expression signature after nef expression in HSPCs. RESULTS Nef expression in HSPCs was found to block their development into T lymphoid cells both in vitro and in the mice reconstituted with nef-expressing HSPCs derived from human cord blood. More surprisingly, in humanized mice nef expression preferentially suppressed the production of CD4+ T cells. This developmental defect was not the result of CD34+ cell loss. RNA-seq analysis revealed that Nef affected the expression of 176 genes in HSPCs, including those involved in tumor necrosis factor, Toll-like receptor, and nucleotide-binding oligomerization domain-like receptor signaling pathways that are important for hematopoietic cell development. CONCLUSION Our results demonstrate that Nef compromises the development of HSPCs into T lymphoid cells, especially CD4+ T cells. This observation suggests that therapeutics targeting Nef may correct HIV-1-associated hematopoietic abnormalities, especially defects in T-cell development.
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Nilsson A, Chiodi F. Early Antiretroviral Therapy May Preserve Vaccine Responses in Human Immunodeficiency Virus-Infected Patients by Preventing Damage to Long-Lived Plasma Cells. J Infect Dis 2021; 222:176-179. [PMID: 31867631 DOI: 10.1093/infdis/jiz679] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 12/18/2019] [Indexed: 12/30/2022] Open
Affiliation(s)
- Anna Nilsson
- Department of Woman and Child Health, Karolinska Institutet, Stockholm, Sweden
| | - Francesca Chiodi
- Department of Microbiology, Tumor and Cell Biology at Biomedicum, Karolinska Institutet, Solna, Sweden
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Zorina TD. New Insights on the Role of the Mesenchymal-Hematopoietic Stem Cell Axis in Autologous and Allogeneic Hematopoiesis. Stem Cells Dev 2020; 30:2-16. [PMID: 33231142 DOI: 10.1089/scd.2020.0148] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Cytoreductive protocols are integral both as conditioning regimens for bone marrow (BM) transplantation and as part of therapies for malignancies, but their associated comorbidities represent a long-standing clinical problem. In particular, they cause myeloablation that debilitates the physiological role of mesenchymal stem and precursor cells (MSPCs) in sustaining hematopoiesis. This review addresses the damaging impact of cytoreductive regimens on MSPCs. In addition, it discusses prospects for alleviating the resulting iatrogenic comorbidities. New insights into the structural and functional dynamics of hematopoietic stem cell (HSC) niches reveal the existence of "empty" niches and the ability of the donor-derived healthy HSCs to outcompete the defective HSCs in occupying these niches. These findings support the notion that conditioning regimens, conventionally used to ablate the recipient hematopoiesis to create space for engraftment of the donor-derived HSCs, may not be a necessity for allogeneic BM transplantation. In addition, the capacity of the MSPCs to cross-talk with HSCs, despite major histocompatibility complex disparity, and suppress graft versus host disease indicates the possibility for development of a conditioning-free, MSPCs-enhanced protocol for BM transplantation. The clinical advantage of supplementing cytoreductive protocols with MSPCs to improve autologous hematopoiesis reconstitution and alleviate cytopenia associated with chemo and radiation therapies for cancer is also discussed.
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Affiliation(s)
- Tatiana D Zorina
- Department of Medical Laboratory Science and Biotechnology, Jefferson College of Health Professions, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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Thomas A, Hammarlund E, Gao L, Holman S, Michel KG, Glesby M, Villacres MC, Golub ET, Roan NR, French AL, Augenbraun MH, Slifka MK. Loss of Preexisting Immunological Memory Among Human Immunodeficiency Virus-Infected Women Despite Immune Reconstitution With Antiretroviral Therapy. J Infect Dis 2020; 222:243-251. [PMID: 31867597 PMCID: PMC7323495 DOI: 10.1093/infdis/jiz678] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 12/19/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND It is unclear whether human immunodeficiency virus (HIV) infection results in permanent loss of T-cell memory or if it affects preexisting antibodies to childhood vaccinations or infections. METHODS We conducted a matched cohort study involving 50 pairs of HIV-infected and HIV-uninfected women. Total memory T-cell responses were measured after anti-CD3 or vaccinia virus (VV) stimulation to measure T cells elicited after childhood smallpox vaccination. VV-specific antibodies were measured by means of enzyme-linked immunosorbent assay (ELISA). RESULTS There was no difference between HIV-infected and HIV-uninfected study participants in terms of CD4+ T-cell responses after anti-CD3 stimulation (P = .19) although HIV-infected participants had significantly higher CD8+ T-cell responses (P = .03). In contrast, there was a significant loss in VV-specific CD4+ T-cell memory among HIV-infected participants (P = .04) whereas antiviral CD8+ T-cell memory remained intact (P > .99). VV-specific antibodies were maintained indefinitely among HIV-uninfected participants (half-life, infinity; 95% confidence interval, 309 years to infinity) but declined rapidly among HIV-infected participants (half-life; 39 years; 24-108 years; P = .001). CONCLUSIONS Despite antiretroviral therapy-associated improvement in CD4+ T-cell counts (nadir, <200/μL; >350/μL after antiretroviral therapy), antigen-specific CD4+ T-cell memory to vaccinations or infections that occurred before HIV infection did not recover after immune reconstitution, and a previously unrealized decline in preexisting antibody responses was observed.
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Affiliation(s)
- Archana Thomas
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, USA
| | - Erika Hammarlund
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, USA
| | - Lina Gao
- Biostatistics Shared Resource, Knight Cancer Institute, Biostatistics & Bioinformatics Core, Oregon National Primate Research Center, Oregon Health & Science University, Portland, Oregon, USA
| | - Susan Holman
- Division of Infectious Diseases, Department of Medicine, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Katherine G Michel
- Department of Medicine, Georgetown University Medical Center, Washington, DC, USA
| | - Marshall Glesby
- Division of Infectious Diseases, Department of Medicine, Weill Cornell Medical College of Cornell University, New York, New York, USA
| | - Maria C Villacres
- Department of Pediatrics, Keck School of Medicine of USC, Los Angeles, California, USA
| | - Elizabeth T Golub
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Nadia R Roan
- Department of Urology, University of California, San Francisco, San Francisco, California, USA
| | - Audrey L French
- Department of Medicine, Cook County Health and Hospitals System, Chicago, Illinois, USA
| | - Michael H Augenbraun
- Division of Infectious Diseases, Department of Medicine, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Mark K Slifka
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, Oregon, USA
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Qu Q, Pang Y, Zhang C, Liu L, Bi Y. Exosomes derived from human umbilical cord mesenchymal stem cells inhibit vein graft intimal hyperplasia and accelerate reendothelialization by enhancing endothelial function. Stem Cell Res Ther 2020; 11:133. [PMID: 32293542 PMCID: PMC7092460 DOI: 10.1186/s13287-020-01639-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 01/05/2020] [Accepted: 03/10/2020] [Indexed: 02/07/2023] Open
Abstract
Background In our previous research, we found that mesenchymal stem cell (MSC) transplantation therapy can inhibit intimal hyperplasia and enhance endothelial function in arterialized vein grafts in rats. However, whether MSC-derived exosomes (MSC-exosomes) can reduce neointimal formation and its possible mechanism is still unclear. Methods The primary human umbilical cord MSCs (hucMSCs) and human umbilical vein endothelial cells (HUVECs) were isolated and characterized by flow cytometry and immunofluorescence. The exosomes derived from hucMSCs (hucMSC-exosomes) were identified by transmission electron microscopy and western blots. hucMSC-exosomes were intravenously injected into a rat model of vein grafting, and its effect on vein grafts reendothelialization and intimal hyperplasia was assessed by physical, histological, immunohistochemistry, and immunofluorescence examinations. The effects of hucMSC-exosomes on endothelial cells were evaluated by integrated experiment, EdU staining, scratch assay, and Transwell assay. The expression levels of key gene and pathways associated with the biological activity of vascular endothelial cells were evaluated following the stimulation of hucMSC-exosomes. Results We successfully isolated and characterized primary hucMSCs and hucMSC-exosomes and primary HUVECs. We verified that the systemic administration of hucMSC-exosomes accelerates reendothelialization and decreases intimal hyperplasia of autologous vein graft in a rat model. We also identified that hucMSC-exosomes can be uptaken by endothelial cells to stimulate cell proliferative and migratory activity in vitro. Furthermore, we detected that vascular endothelial growth factor (VEGF) plays an important part in hucMSC-exosome-mediated proliferation and migration in HUVECs. In addition, we also provided evidence that the signalling pathways of PI3K/AKT and MAPK/ERK1/2 take part in hucMSC-exosome-induced VEGF regulation. Conclusion Our data suggest that hucMSC-exosomes exert a vasculoprotective role in the setting of vein graft disease, which may provide a new clue to protect against vein graft failure in the future.
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Affiliation(s)
- Qingxi Qu
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China
| | - Yingxin Pang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China
| | - Chunmei Zhang
- Department of Cardiology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China
| | - Linghong Liu
- Research Center of Stem Cell and Regenerative Medicine, Shandong University, Jinan, 250012, Shandong, People's Republic of China. .,Laboratory of Cryomedicine, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China.
| | - Yanwen Bi
- Department of Cardiovascular Surgery, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, People's Republic of China.
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12
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Yuan Y, Zhou C, Yang Q, Ma S, Wang X, Guo X, Ding Y, Tang J, Zeng Y, Li D. HIV-1 Tat protein inhibits the hematopoietic support function of human bone marrow mesenchymal stem cells. Virus Res 2019; 273:197756. [PMID: 31521762 DOI: 10.1016/j.virusres.2019.197756] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/11/2019] [Accepted: 09/11/2019] [Indexed: 12/21/2022]
Abstract
Most HIV-1-infected patients experience hematopoiesis suppression complications. Bone marrow mesenchymal stem cells (BMSCs) are involved in regulation of hematopoietic homeostasis, so we investigated the role of Tat, a protein released by infected cells in bone marrow and impacted differentiation potential of mesenchymal stem cells, in the BMSC hematopoietic support function. BMSCs were treated with HIV-1 Tat protein (BMSCTat-p), transfected with HIV-1 Tat mRNA (BMSCTat-m) or treated with solvent (PBS) (BMSCcon) for 20 days. Then, the hematopoietic support function of BMSCTat-p, BMSCTat-m and BMSCcon was analyzed via ex vivo expansion of hematopoietic stem cells (HSCs) grown on the BMSCs and via in vivo cotransplantation of HSCs and BMSCs. In addition, the hematopoiesis-supporting gene expression patterns of BMSCTat-p, BMSCTat-m and BMSCcon were compared. The results showed that BMSCTat-p and BMSCTat-m displayed reduced expansion, a decline in the number of colony forming units (CFUs) and a decreased proportion of the primitive subpopulation of hematopoietic stem cells under coculture conditions compared with BMSCcon. The ability of BMSCTat-p to support hematopoietic recovery was also impaired, which was further confirmed by the patterns in gene expression analysis. In conclusion, Tat treatment reduced the function of BMSCs in hematopoietic support, likely by downregulating the expression of a series of hematopoietic cytokines.
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Affiliation(s)
- Yahong Yuan
- Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, 32 S. Renmin Rd., Shiyan, Hubei, 442000, China
| | - Chunfang Zhou
- Department of Gastroenterology, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, China
| | - Qi Yang
- Department of Spinal Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, China
| | - Shinan Ma
- Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, 32 S. Renmin Rd., Shiyan, Hubei, 442000, China
| | - Xiaoli Wang
- Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, 32 S. Renmin Rd., Shiyan, Hubei, 442000, China
| | - Xingrong Guo
- Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, 32 S. Renmin Rd., Shiyan, Hubei, 442000, China
| | - Yan Ding
- Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, 32 S. Renmin Rd., Shiyan, Hubei, 442000, China
| | - Junming Tang
- Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, 32 S. Renmin Rd., Shiyan, Hubei, 442000, China
| | - Yi Zeng
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing, 100124, China
| | - Dongsheng Li
- Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, 32 S. Renmin Rd., Shiyan, Hubei, 442000, China.
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