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Jahan J, Joshi S, Oca IMD, Toelle A, Lopez-Yang C, Chacon CV, Beyer AM, Garcia CA, Jarajapu YP. The role of telomerase reverse transcriptase in the mitochondrial protective functions of Angiotensin-(1-7) in diabetic CD34 + cells. Biochem Pharmacol 2024; 222:116109. [PMID: 38458330 PMCID: PMC11007670 DOI: 10.1016/j.bcp.2024.116109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 01/08/2024] [Accepted: 03/05/2024] [Indexed: 03/10/2024]
Abstract
Angiotensin (Ang)-(1-7) stimulates vasoprotective functions of diabetic (DB) CD34+ hematopoietic stem/progenitor cells partly by decreasing reactive oxygen species (ROS), increasing nitric oxide (NO) levels and decreasing TGFβ1 secretion. Telomerase reverse transcriptase (TERT) translocates to mitochondria and regulates ROS generation. Alternative splicing of TERT results in variants α-, β- and α-β-TERT, which may oppose functions of full-length (FL) TERT. This study tested if the protective functions of Ang-(1-7) or TGFβ1-silencing are mediated by mitoTERT and that diabetes decreases FL-TERT expression by inducing splicing. CD34+ cells were isolated from the peripheral blood mononuclear cells of nondiabetic (ND, n = 68) or DB (n = 74) subjects. NO and mitoROS levels were evaluated by flow cytometry. TERT splice variants and mitoDNA-lesions were characterized by qPCR. TRAP assay was used for telomerase activity. Decoy peptide was used to block mitochondrial translocation (mitoXTERT). TERT inhibitor or mitoXTERT prevented the effects of Ang-(1-7) on NO or mitoROS levels in DB-CD34+ cells. FL-TERT expression and telomerase activity were lower and mitoDNA-lesions were higher in DB cells compared to ND and were reversed by Ang-(1-7) or TGFβ1-silencing. The prevalence of TERT splice variants, with predominant β-TERT expression, was higher and the expression of FL-TERT was lower in DB cells (n = 25) compared to ND (n = 30). Ang-(1-7) or TGFβ1-silencing decreased TERT-splicing and increased FL-TERT. Blocking of β-splicing increased FL-TERT and protected mitoDNA in DB-cells. The findings suggest that diabetes induces TERT-splicing in CD34+ cells and that β-TERT splice variant largely contributes to the mitoDNA oxidative damage.
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Affiliation(s)
- Jesmin Jahan
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, USA
| | - Shrinidh Joshi
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, USA
| | | | - Andrew Toelle
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, USA
| | | | | | - Andreas M Beyer
- Department of Medicine and Physiology, Medical College of Wisconsin, Milwaukee, WI, USA
| | | | - Yagna Pr Jarajapu
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, USA.
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2
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Chittimalli K, Jahan J, Sakamuri A, McAdams ZL, Ericsson AC, Jarajapu YP. Restoration of the gut barrier integrity and restructuring of the gut microbiome in aging by angiotensin-(1-7). Clin Sci (Lond) 2023; 137:913-930. [PMID: 37254732 PMCID: PMC10881191 DOI: 10.1042/cs20220904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 05/16/2023] [Accepted: 05/30/2023] [Indexed: 06/01/2023]
Abstract
Compromised barrier function of colon epithelium with aging is largely due to gut microbial dysbiosis. Recent studies implicate an important role for angiotensin converting enzymes, ACE and ACE2, angiotensins, and the receptors, AT1 receptor (AT1R) and Mas receptor (MasR), in the regulation of colon functions. The present study tested the hypothesis that leaky gut in aging is associated with an imbalance in ACE2/ACE and that the treatment with angiotenisn-(1-7) (Ang-(1-7)) will restore gut barrier integrity and microbiome. Studies were carried out in Young (3-4 months) and old (20-24 months) male mice. Ang-(1-7) was administered by using osmotic pumps. Outcome measures included expressions of ACE, ACE2, AT1R, and MasR, intestinal permeability by using FITC-dextran, and immunohistochemistry of claudin 1 and occludin, and intestinal stem cells (ISCs). ACE2 protein and activity were decreased in Old group while that of ACE were unchanged. Increased intestinal permeability and plasma levels of zonulin-1 in the Old group were normalized by Ang-(1-7). Epithelial disintegrity, reduced number of goblet cells and ISCs in the old group were restored by Ang-(1-7). Expression of claudin 1 and occludin in the aging colon was increased by Ang-(1-7). Infiltration of CD11b+ or F4/80+ inflammatory cells in the old colons were decreased by Ang-(1-7). Gut microbial dysbiosis in aging was evident by decreased richness and altered beta diversity that were reversed by Ang-(1-7) with increased abundance of Lactobacillus or Lachnospiraceae. The present study shows that Ang-(1-7) restores gut barrier integrity and reduces inflammation in the aging colon by restoring the layer of ISCs and by restructuring the gut microbiome.
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Affiliation(s)
- Kishore Chittimalli
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, U.S.A
| | - Jesmin Jahan
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, U.S.A
| | - Anil Sakamuri
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, U.S.A
| | - Zachary L. McAdams
- Missouri Metagenomics Center, Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, MO, U.S.A
| | - Aaron C. Ericsson
- Missouri Metagenomics Center, Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, MO, U.S.A
| | - Yagna P.R. Jarajapu
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, U.S.A
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Chittimalli K, Jahan J, Sakamuri A, Weyrick H, Winkle W, Adkins S, Vetter SW, Jarajapu YPR. Reversal of aging-associated increase in myelopoiesis and expression of alarmins by angiotensin-(1-7). Sci Rep 2023; 13:2543. [PMID: 36782016 PMCID: PMC9925828 DOI: 10.1038/s41598-023-29853-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 02/11/2023] [Indexed: 02/15/2023] Open
Abstract
Aging is associated with chronic systemic inflammation largely due to increased myelopoiesis, which in turn increases risk for vascular disease. We have previously shown evidence for the therapeutic potential of Angiotensin-(1-7) (Ang-(1-7)) in reversing vasoreparative dysfunction in aging. This study tested the hypothesis that ischemic vascular repair in aging by Ang-(1-7) involves attenuation of myelopoietic potential in the bone marrow and decreased mobilization of inflammatory cells. Young or Old male mice of age 3-4 and 22-24 months, respectively, received Ang-(1-7) (1 µg/kg/min, s.c.) for four weeks. Myelopoiesis was evaluated in the bone marrow (BM) cells by carrying out the colony forming unit (CFU-GM) assay followed by flow cytometry of monocyte-macrophages. Expression of pro-myelopoietic factors and alarmins in the hematopoietic progenitor-enriched BM cells was evaluated. Hindlimb ischemia (HLI) was induced by femoral ligation, and mobilization of monocytes into the blood stream was determined. Blood flow recovery was monitored by Laser Doppler imaging and infiltration of inflammatory cells was evaluated by immunohistochemistry. BM cells from Old mice generated a higher number of monocytes (Ly6G-CD11b+Ly6Chi) and M1 macrophages (Ly6ChiF4/80+) compared to that of Young, which was reversed by Ang-(1-7). Gene expression of selected myelopoietic factors, alarmins (S100A8, S100A9, S100A14 and HMGb1) and the receptor for alarmins, RAGE, was higher in the Old hematopoietic progenitor-enriched BM cells compared to the Young. Increased expressions of these factors were decreased by Ang-(1-7). Ischemia-induced mobilization of monocytes was higher in Old mice with decreased blood flow recovery and increased infiltration of monocyte-macrophages compared to the Young, all of which were reversed by Ang-(1-7). Enhanced ischemic vascular repair by Ang-(1-7) in aging is largely by decreasing the generation and recruitment of inflammatory monocyte-macrophages to the areas of ischemic injury. This is associated with decreased alarmin signaling in the BM-hematopoietic progenitor cells.
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Affiliation(s)
- Kishore Chittimalli
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - Jesmin Jahan
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - Anil Sakamuri
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - Hope Weyrick
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - Wink Winkle
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - Steven Adkins
- School of Biomedical Sciences, University of North Dakota, Grand Forks, ND, 58202, USA
| | - Stefan W Vetter
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - Yagna P R Jarajapu
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA.
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Chen XY, Shi YX, Huang YP, Ding M, Shen QL, Li CJ, Lin JN. SDF-1 inhibits the dedifferentiation of islet β cells in hyperglycaemia by up-regulating FoxO1 via binding to CXCR4. J Cell Mol Med 2021; 26:750-763. [PMID: 34935260 PMCID: PMC8817121 DOI: 10.1111/jcmm.17110] [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: 07/20/2021] [Revised: 11/19/2021] [Accepted: 11/23/2021] [Indexed: 11/29/2022] Open
Abstract
Islet β cell dedifferentiation is one of the most important mechanisms in the occurrence and development of diabetes. We studied the possible effects of chemokine stromal cell-derived factor-1 (SDF-1) in the dedifferentiation of islet β cells. It was noted that the number of dedifferentiated islet β cells and the expression of SDF-1 in pancreatic tissues significantly increased with diabetes. In islet β cell experiments, inhibition of SDF-1 expression resulted in an increase in the number of dedifferentiated cells, while overexpression of SDF-1 resulted in a decrease. This seemed to be contradicted by the effect of diabetes on the expression of SDF-1 in pancreatic tissue, but it was concluded that this may be related to the loss of SDF-1 activity. SDF-1 binds to CXCR4 to form a complex, which activates and phosphorylates AKT, subsequently increases the expression of forkhead box O1 (FOXO1), and inhibits the dedifferentiation of islet β cells. This suggests that SDF-1 may be a novel target in the treatment of diabetes.
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Affiliation(s)
- Xiang-Yu Chen
- Department of Endocrinology, Health Management Center, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin, China.,Department of Endocrinology and Metabolism, Peking University Third Hospital, Beijing, China.,Tianjin Medical University, Tianjin, China
| | - Ying-Xin Shi
- Department of Endocrinology, Health Management Center, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin, China.,Tianjin Medical University, Tianjin, China
| | - Ya-Ping Huang
- Department of Endocrinology, Health Management Center, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin, China.,Tianjin Medical University, Tianjin, China
| | - Min Ding
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Qi-Ling Shen
- Department of Endocrinology, Health Management Center, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin, China
| | - Chun-Jun Li
- Department of Endocrinology, Health Management Center, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin, China.,Tianjin Medical University, Tianjin, China
| | - Jing-Na Lin
- Department of Endocrinology, Health Management Center, Tianjin Union Medical Center, Nankai University Affiliated Hospital, Tianjin, China.,Tianjin Medical University, Tianjin, China
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Vasam G, S SJ, Miyat SY, Adam H, Jarajapu YP. Early onset of aging phenotype in vascular repair by Mas receptor deficiency. GeroScience 2021; 44:311-327. [PMID: 34661816 DOI: 10.1007/s11357-021-00473-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 10/08/2021] [Indexed: 10/20/2022] Open
Abstract
Aging is associated with impaired vascular repair following ischemic insult, largely due to reparative dysfunctions of progenitor cells. Activation of Mas receptor (MasR) was shown to reverse aging-associated vasoreparative dysfunction. This study tested the impact of MasR-deficiency on mobilization and vasoreparative functions with aging. Wild type (WT) or MasR-deficient mice (MasR-/- or MasR+/-) at 12-14 weeks (young) or middle age (11-12 months) (MA) were used in the study. Mobilization of lineage-negative, Sca-1-positive cKit-positive (LSK) cells in response to G-CSF or plerixafor was determined. Hindlimb ischemia (HLI) was induced by femoral artery ligation. Mobilization and blood flow recovery were monitored post-HLI. Radiation chimeras were made by lethal irradiation of WT or MasR-/- mice followed by administration of bone marrow cells from MasR-/- or WT mice, respectively. Nitric oxide (NO) generation by stromal-derived factor-1α (SDF) and mitochondrial reactive oxygen species (mitoROS) levels were determined by flow cytometry. Effect of A779 treatment on mobilization, blood flow recovery, and NO and ROS levels were determined in young WT and MasR+/- mice. Circulating LSK cells in basal or in response to plerixafor or G-CSF or in response to ischemic injury were lower in MasR-/- mice compared to the WT. Responses in MasR+/- mice were similar to the WT at young age but at the middle age, impairments were observed. Impaired mobilization to ischemia or G-CSF was rescued in WT → MasR-/- chimeras. NO levels were lower and mitoROS were higher in MasR-/- LSK cells compared to WT cells. A779 precipitated dysfunctions in young-MasR+/- mice similar to that observed in MA-MasR+/-, and this accompanied decreased NO generation by SDF and enhanced mitoROS levels. This study shows that mice at MA do not exhibit vasoreparative dysfunction. Either partial or total loss of MasR precipitates advanced-aging phenotype likely due to lack of NO and oxidative stress.
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Affiliation(s)
- Goutham Vasam
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, 58108, USA
| | - Shrinidh Joshi S
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, 58108, USA
| | - Su Yamin Miyat
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, 58108, USA
| | - Hashim Adam
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, 58108, USA
| | - Yagna P Jarajapu
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND, 58108, USA.
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6
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Zhou A, Wu B, Yu H, Tang Y, Liu J, Jia Y, Yang X, Xiang L. Current Understanding of Osteoimmunology in Certain Osteoimmune Diseases. Front Cell Dev Biol 2021; 9:698068. [PMID: 34485284 PMCID: PMC8416088 DOI: 10.3389/fcell.2021.698068] [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: 04/20/2021] [Accepted: 07/15/2021] [Indexed: 02/05/2023] Open
Abstract
The skeletal system and immune system seem to be two independent systems. However, there in fact are extensive and multiple crosstalk between them. The concept of osteoimmunology was created to describe those interdisciplinary events, but it has been constantly updated over time. In this review, we summarize the interactions between the skeletal and immune systems in the co-development of the two systems and the progress of certain typical bone abnormalities and bone regeneration on the cellular and molecular levels according to the mainstream novel study. At the end of the review, we also highlighted the possibility of extending the research scope of osteoimmunology to other systemic diseases. In conclusion, we propose that osteoimmunology is a promising perspective to uncover the mechanism of related diseases; meanwhile, a study from the point of view of osteoimmunology may also provide innovative ideas and resolutions to achieve the balance of internal homeostasis.
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Affiliation(s)
- Anqi Zhou
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bingfeng Wu
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hui Yu
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yufei Tang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jiayi Liu
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yinan Jia
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiaoyu Yang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lin Xiang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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7
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Joshi S, Montes de Oca I, Maghrabi A, Lopez-Yang C, Quiroz-Olvera J, Garcia CA, Jarajapu YPR. ACE2 gene transfer ameliorates vasoreparative dysfunction in CD34+ cells derived from diabetic older adults. Clin Sci (Lond) 2021; 135:367-385. [PMID: 33409538 PMCID: PMC7843404 DOI: 10.1042/cs20201133] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/24/2020] [Accepted: 01/06/2021] [Indexed: 01/02/2023]
Abstract
Diabetes increases the risk for ischemic vascular diseases, which is further elevated in older adults. Bone marrow-derived hematopoietic CD34+ stem/progenitor cells have the potential of revascularization; however, diabetes attenuates vasoreparative functions. Angiotensin-converting enzyme 2 (ACE2) is the vasoprotective enzyme of renin-angiotensin system in contrast with the canonical angiotensin-converting enzyme (ACE). The present study tested the hypothesis that diabetic dysfunction is associated with ACE2/ACE imbalance in hematopoietic stem/progenitor cells (HSPCs) and that increasing ACE2 expression would restore reparative functions. Blood samples from male and female diabetic (n=71) or nondiabetic (n=62) individuals were obtained and CD34+ cells were enumerated by flow cytometry. ACE and ACE2 enzyme activities were determined in cell lysates. Lentiviral (LV) approach was used to increase the expression of soluble ACE2 protein. Cells from diabetic older adults (DB) or nondiabetic individuals (Control) were evaluated for their ability to stimulate revascularization in a mouse model of hindlimb ischemia (HLI). DB cells attenuated the recovery of blood flow to ischemic areas in nondiabetic mice compared with that observed with Control cells. Administration of DB cells modified with LV-ACE2 resulted in complete restoration of blood flow. HLI in diabetic mice resulted in poor recovery with amputations, which was not reversed by either Control or DB cells. LV-ACE2 modification of Control or DB cells resulted in blood flow recovery in diabetic mice. In vitro treatment with Ang-(1-7) modified paracrine profile in diabetic CD34+ cells. The present study suggests that vasoreparative dysfunction in CD34+ cells from diabetic older adults is associated with ACE2/ACE imbalance and that increased ACE2 expression enhances the revascularization potential.
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Affiliation(s)
- Shrinidh Joshi
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND 58108, U.S.A
| | | | | | | | | | | | - Yagna Prasada Rao Jarajapu
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, ND 58108, U.S.A
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Verma A, Zhu P, Xu K, Du T, Liao S, Liang Z, Raizada MK, Li Q. Angiotensin-(1-7) Expressed From Lactobacillus Bacteria Protect Diabetic Retina in Mice. Transl Vis Sci Technol 2020; 9:20. [PMID: 33344064 PMCID: PMC7735952 DOI: 10.1167/tvst.9.13.20] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 11/03/2020] [Indexed: 01/04/2023] Open
Abstract
Purpose A multitude of animal studies substantiates the beneficial effects of Ang-(1–7), a peptide hormone in the protective axis of the renin angiotensin system, in diabetes and its associated complications including diabetic retinopathy (DR). However, the clinical application of Ang-(1–7) is limited due to unfavorable pharmacological properties. As emerging evidence implicates gut dysbiosis in pathogenesis of diabetes and supports beneficial effects of probiotics, we sought to develop probiotics-based expression and delivery system to enhance Ang-(1–7) and evaluate the efficacy of engineered probiotics expressing Ang-(1–7) in attenuation of DR in animal models. Methods Ang-(1–7) was expressed in the Lactobacillus species as a secreted fusion protein with a trans-epithelial carrier to allow uptake into circulation. To evaluate the effects of Ang-(1–7) expressed from Lactobacillus paracasei (LP), adult diabetic eNOS−/− and Akita mice were orally gavaged with either 1 × 109 CFU of LP secreting Ang-(1–7) (LP-A), LP alone or vehicle, 3 times/week, for 8 and 12 weeks, respectively. Results Ang-(1–7) is efficiently expressed from different Lactobacillus species and secreted into circulation in mice fed with LP-A. Oral administration of LP-A significantly reduced diabetes-induced loss of retinal vascular capillaries. LP-A treatment also prevented loss of retinal ganglion cells, and significantly decreased retinal inflammatory cytokine expression in both diabetic eNOS−/− and Akita mice. Conclusions These results provide proof-of-concept for feasibility and efficacy of using engineered probiotic species as live vector for delivery of Ang-(1–7) with enhanced bioavailability. Translational Relevance Probiotics-based delivery of Ang-(1–7) may hold important therapeutic potential for the treatment of DR and other diabetic complications.
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Affiliation(s)
- Amrisha Verma
- Department of Ophthalmology, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Ping Zhu
- Department of Ophthalmology, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Kang Xu
- Department of Ophthalmology, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Tao Du
- Department of Ophthalmology, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Shengquan Liao
- Department of Ophthalmology, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Zhibing Liang
- Department of Ophthalmology, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Mohan K Raizada
- Physiology & Functional Genomics, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Qiuhong Li
- Department of Ophthalmology, College of Medicine, University of Florida, Gainesville, Florida, USA
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9
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Joshi S, Chittimalli K, Jahan J, Vasam G, Jarajapu YP. ACE2/ACE imbalance and impaired vasoreparative functions of stem/progenitor cells in aging. GeroScience 2020; 43:1423-1436. [PMID: 33247425 PMCID: PMC7694587 DOI: 10.1007/s11357-020-00306-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 11/23/2020] [Indexed: 12/12/2022] Open
Abstract
Aging increases risk for ischemic vascular diseases. Bone marrow–derived hematopoietic stem/progenitor cells (HSPCs) are known to stimulate vascular regeneration. Activation of either the Mas receptor (MasR) by angiotensin-(1-7) (Ang-(1-7)) or angiotensin-converting enzyme-2 (ACE2) stimulates vasoreparative functions in HSPCs. This study tested if aging is associated with decreased ACE2 expression in HSPCs and if Ang-(1-7) restores vasoreparative functions. Flow cytometric enumeration of Lin−CD45lowCD34+ cells was carried out in peripheral blood of male or female individuals (22–83 years of age). Activity of ACE2 or the classical angiotensin-converting enzyme (ACE) was determined in lysates of HSPCs. Lin−Sca-1+cKit+ (LSK) cells were isolated from young (3–5 months) or old (20–22 months) mice, and migration and proliferation were evaluated. Old mice were treated with Ang-(1-7), and mobilization of HSPCs was determined following ischemia induced by femoral ligation. A laser Doppler blood flow meter was used to determine blood flow. Aging was associated with decreased number (Spearman r = − 0.598, P < 0.0001, n = 56), decreased ACE2 (r = − 0.677, P < 0.0004), and increased ACE activity (r = 0.872, P < 0.0001) (n = 23) in HSPCs. Migration or proliferation of LSK cells in basal or in response to stromal-derived factor-1α in old cells is attenuated compared to young, and these dysfunctions were reversed by Ang-(1-7). Ischemia increased the number of circulating LSK cells in young mice, and blood flow to ischemic areas was recovered. These responses were impaired in old mice but were restored by treatment with Ang-(1-7). These results suggest that activation of ACE2 or MasR would be a promising approach for enhancing ischemic vascular repair in aging.
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Affiliation(s)
- S Joshi
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - K Chittimalli
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - J Jahan
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - G Vasam
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA
| | - Y P Jarajapu
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Sudro-16, Albrecht Blvd., Fargo, ND, 58108, USA.
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10
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Angiotensin-(1-7) Treatment Restores Pancreatic Microcirculation Profiles: A New Story in Acute Pancreatitis. Pancreas 2020; 49:960-966. [PMID: 32658081 DOI: 10.1097/mpa.0000000000001609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVES The aim of this study was to investigate the changes of pancreatic microvascular vasomotion and blood distribution pattern in acute pancreatitis (AP), and whether Angiotensin (Ang)-(1-7) treatment could restore pancreatic microcirculation profiles. METHODS Mice were randomly separated into control, AP, and Ang-(1-7)-treated AP (A-AP) group. Acute pancreatitis was induced in mice by intraperitoneal injection of cerulein and lipopolysaccharide. Pancreatitis was confirmed by histopathology, serum amylase, and high-sensitive C-reactive protein. Pancreatic microvascular vasomotion and blood distribution pattern in AP progression were assessed by laser Doppler. Meanwhile, ultrastructural changes of pancreatic microcirculation, including microvascular cavity and wall and endothelial mitochondria, were evaluated by transmission electron microscopy. RESULTS Acute pancreatitis mice exhibited pathological pancreatic injuries with lower blood distribution pattern and decreased average blood perfusion, relative velocity, effective frequency, and amplitude of microvascular vasomotion. The pancreatic pathological injuries in Ang-(1-7)-treated mice were significantly alleviated. Consistently, Ang-(1-7) treatment led to a restoration in pancreatic microcirculation profiles. Furthermore, non-Ang-(1-7)-treated mice showed an irregular microvascular wall, narrow cavity, and swelling mitochondria, and these ultrastructural impairments were reversed by Ang-(1-7) administration. CONCLUSIONS Pancreatic microcirculation profiles are abnormal in the progression of AP. Angiotensin-(1-7) administration could restore functional status of pancreatic microcirculation.
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11
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Costa LA, Eiro N, Fraile M, Gonzalez LO, Saá J, Garcia-Portabella P, Vega B, Schneider J, Vizoso FJ. Functional heterogeneity of mesenchymal stem cells from natural niches to culture conditions: implications for further clinical uses. Cell Mol Life Sci 2020; 78:447-467. [PMID: 32699947 PMCID: PMC7375036 DOI: 10.1007/s00018-020-03600-0] [Citation(s) in RCA: 151] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/02/2020] [Accepted: 07/13/2020] [Indexed: 12/11/2022]
Abstract
Mesenchymal stem cells (MSC) are present in all organs and tissues. Several studies have shown the therapeutic potential effect of MSC or their derived products. However, the functional heterogeneity of MSC constitutes an important barrier for transferring these capabilities to the clinic. MSC heterogeneity depends on their origin (biological niche) or the conditions of potential donors (age, diseases or unknown factors). It is accepted that many culture conditions of the artificial niche to which they are subjected, such as O2 tension, substrate and extracellular matrix cues, inflammatory stimuli or genetic manipulations can influence their resulting phenotype. Therefore, to attain a more personalized and precise medicine, a correct selection of MSC is mandatory, based on their functional potential, as well as the need to integrate all the existing information to achieve an optimal improvement of MSC features in the artificial niche.
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Affiliation(s)
- Luis A Costa
- Unidad de Investigación, Fundación Hospital de Jove, Avda. Eduardo Castro 161, 33920, Gijón, Asturias, Spain
| | - Noemi Eiro
- Unidad de Investigación, Fundación Hospital de Jove, Avda. Eduardo Castro 161, 33920, Gijón, Asturias, Spain
| | - María Fraile
- Unidad de Investigación, Fundación Hospital de Jove, Avda. Eduardo Castro 161, 33920, Gijón, Asturias, Spain
| | - Luis O Gonzalez
- Unidad de Investigación, Fundación Hospital de Jove, Avda. Eduardo Castro 161, 33920, Gijón, Asturias, Spain.,Department of Anatomical Pathology, Fundación Hospital de Jove, Gijón, Spain
| | - Jorge Saá
- Unidad de Investigación, Fundación Hospital de Jove, Avda. Eduardo Castro 161, 33920, Gijón, Asturias, Spain
| | - Pablo Garcia-Portabella
- Unidad de Investigación, Fundación Hospital de Jove, Avda. Eduardo Castro 161, 33920, Gijón, Asturias, Spain
| | - Belén Vega
- Unidad de Investigación, Fundación Hospital de Jove, Avda. Eduardo Castro 161, 33920, Gijón, Asturias, Spain
| | - José Schneider
- Department of Obstetrics and Gynecology, University of Valladolid, Valladolid, Spain
| | - Francisco J Vizoso
- Unidad de Investigación, Fundación Hospital de Jove, Avda. Eduardo Castro 161, 33920, Gijón, Asturias, Spain.
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12
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Macedo LM, de Ávila RI, Pedrino GR, Colugnati DB, Valadares MC, Lima EM, Borges CL, Kitten GT, Gava E, Castro CH. Effect of angiotensin II and angiotensin-(1-7) on proliferation of stem cells from human dental apical papilla. J Cell Physiol 2020; 236:366-378. [PMID: 32519379 DOI: 10.1002/jcp.29862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 05/27/2020] [Accepted: 05/27/2020] [Indexed: 02/06/2023]
Abstract
The effects of the renin-angiotensin system (RAS) on stem cells isolated from human dental apical papilla (SCAPs) are completely unknown. Therefore, the aim of this study was to identify RAS components expressed in SCAPs and the effects of angiotensin (Ang) II and Ang-(1-7) on cell proliferation. SCAPs were collected from third molar teeth of adolescents and maintained in cell culture. Messenger RNA expression and protein levels of angiotensin-converting enzyme (ACE), ACE2, and Mas, Ang II type I (AT1) and type II (AT2) receptors were detected in SCAPs. Treatment with either Ang II or Ang-(1-7) increased the proliferation of SCAPs. These effects were inhibited by PD123319, an AT2 antagonist. While Ang II augmented mTOR phosphorylation, Ang-(1-7) induced ERK1/2 phosphorylation. In conclusion, SCAPs produce the main RAS components and both Ang II and Ang-(1-7) treatments induced cell proliferation mediated by AT2 activation through different intracellular mechanisms.
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Affiliation(s)
- Larissa M Macedo
- Integrative Laboratory of Cardiovascular and Neurological Pathophysiology, Department of Physiological Sciences, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
| | - Renato I de Ávila
- Laboratory of Education and Research in In Vitro Toxicology (Tox In), Faculty of Pharmacy, Federal University of Goiás, Goiânia, GO, Brazil
| | - Gustavo R Pedrino
- Department of Physiological Sciences, Centre for Neuroscience and Cardiovascular Research, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
| | - Diego B Colugnati
- Integrative Laboratory of Cardiovascular and Neurological Pathophysiology, Department of Physiological Sciences, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
| | - Marize C Valadares
- Laboratory of Education and Research in In Vitro Toxicology (Tox In), Faculty of Pharmacy, Federal University of Goiás, Goiânia, GO, Brazil
| | - Eliana M Lima
- Pharmaceutical Technology Laboratory, Faculty of Pharmacy, Federal University of Goiás, Goiânia, GO, Brazil
| | - Clayton L Borges
- Laboratory of Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
| | - Gregory T Kitten
- Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Elisandra Gava
- Integrative Laboratory of Cardiovascular and Neurological Pathophysiology, Department of Physiological Sciences, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
| | - Carlos H Castro
- Integrative Laboratory of Cardiovascular and Neurological Pathophysiology, Department of Physiological Sciences, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
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13
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Jarajapu YPR. Targeting Angiotensin-Converting Enzyme-2/Angiotensin-(1-7)/Mas Receptor Axis in the Vascular Progenitor Cells for Cardiovascular Diseases. Mol Pharmacol 2020; 99:29-38. [PMID: 32321734 DOI: 10.1124/mol.119.117580] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 03/31/2020] [Indexed: 12/20/2022] Open
Abstract
Bone marrow-derived hematopoietic stem/progenitor cells are vasculogenic and play an important role in endothelial health and vascular homeostasis by participating in postnatal vasculogenesis. Progenitor cells are mobilized from bone marrow niches in response to remote ischemic injury and migrate to the areas of damage and stimulate revascularization largely by paracrine activation of angiogenic functions in the peri-ischemic vasculature. This innate vasoprotective mechanism is impaired in certain chronic clinical conditions, which leads to the development of cardiovascular complications. Members of the renin-angiotensin system-angiotensin-converting enzymes (ACEs) ACE and ACE2, angiotensin II (Ang II), Ang-(1-7), and receptors AT1 and Mas-are expressed in vasculogenic progenitor cells derived from humans and rodents. Ang-(1-7), generated by ACE2, is known to produce cardiovascular protective effects by acting on Mas receptor and is considered as a counter-regulatory mechanism to the detrimental effects of Ang II. Evidence has now been accumulating in support of the activation of the ACE2/Ang-(1-7)/Mas receptor pathway by pharmacologic or molecular maneuvers, which stimulates mobilization of progenitor cells from bone marrow, migration to areas of vascular damage, and revascularization of ischemic areas in pathologic conditions. This minireview summarizes recent studies that have enhanced our understanding of the physiology and pharmacology of vasoprotective axis in bone marrow-derived progenitor cells in health and disease. SIGNIFICANCE STATEMENT: Hematopoietic stem progenitor cells (HSPCs) stimulate revascularization of ischemic areas. However, the reparative potential is diminished in certain chronic clinical conditions, leading to the development of cardiovascular diseases. ACE2 and Mas receptor are key members of the alternative axis of the renin-angiotensin system and are expressed in HSPCs. Accumulating evidence points to activation of ACE2 or Mas receptor as a promising approach for restoring the reparative potential, thereby preventing the development of ischemic vascular diseases.
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Affiliation(s)
- Yagna P R Jarajapu
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, North Dakota
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14
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Zhu L, Wang W, Xie TH, Zou J, Nie X, Wang X, Zhang MY, Wang ZY, Gu S, Zhuang M, Tan J, Shen C, Dai Y, Yang X, Yao Y, Wei TT. TGR5 receptor activation attenuates diabetic retinopathy through suppression of RhoA/ROCK signaling. FASEB J 2020; 34:4189-4203. [PMID: 31957105 DOI: 10.1096/fj.201902496rr] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 01/01/2020] [Accepted: 01/06/2020] [Indexed: 12/27/2022]
Abstract
Diabetic retinopathy (DR) is a common microvascular complication of diabetes mellitus. Abnormal energy metabolism in microvascular endothelium is involved in the progression of diabetic retinopathy. Bile Acid G-Protein-Coupled Membrane Receptor (TGR5) has emerged as a novel regulator of metabolic disorders. However, the role of TGR5 in diabetes mellitus-induced microvascular dysfunction in retinas is largely unknown. Herein, enzyme-linked immunosorbent assay was used for analyzing bile acid (BA) profiles in diabetic rat retinas and retinal microvascular endothelial cells (RMECs) cultured in high glucose medium. The effects of TGR5 agonist on streptozotocin (STZ)-induced diabetic retinopathy were evaluated by HE staining, TUNEL staining, retinal trypsin digestion, and vascular permeability assay. A pharmacological inhibitor of RhoA was used to study the role of TGR5 on the regulation of Rho/Rho-associated coiled-coil containing protein kinase (ROCK) and western blot, immunofluorescence and siRNA silencing were performed to study the related signaling pathways. Here we show that bile acids were downregulated during DR progression in the diabetic rat retinas and RMECs cultured in high glucose medium. The TGR5 agonist obviously ameliorated diabetes-induced retinal microvascular dysfunction in vivo, and inhibited the effect of TNF-α on endothelial cell proliferation, migration, and permeability in vitro. In contrast, knockdown of TGR5 by siRNA aggravated TNF-α-induced actin polymerization and endothelial permeability. Mechanistically, the effects of TGR5 on the improvement of endothelial function was due to its regulatory role on the ROCK signaling pathway. An inhibitor of RhoA significantly reversed the loss of tight junction protein under TNF-α stimulation. Taken together, our findings suggest that insufficient BA signaling plays an important pathogenic role in the development of DR. Upregulation or activation of TGR5 may inhibit RhoA/ROCK-dependent actin remodeling and represent an important therapeutic intervention for DR.
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Affiliation(s)
- Lingpeng Zhu
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China.,Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China.,Wuxi Institute of Translational Medicine, Wuxi, P.R. China
| | - Wenjuan Wang
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China.,Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China.,Wuxi Institute of Translational Medicine, Wuxi, P.R. China
| | - Tian-Hua Xie
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China
| | - Jian Zou
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China.,Wuxi Institute of Translational Medicine, Wuxi, P.R. China
| | - Xiaowei Nie
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China.,Wuxi Institute of Translational Medicine, Wuxi, P.R. China
| | - Xiaolu Wang
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China.,Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China.,Wuxi Institute of Translational Medicine, Wuxi, P.R. China
| | - Meng-Yuan Zhang
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China
| | - Zhong-Yuan Wang
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China
| | - Shun Gu
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China
| | - Miao Zhuang
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China
| | - Jianxin Tan
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China.,Wuxi Institute of Translational Medicine, Wuxi, P.R. China
| | - Chenyou Shen
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China.,Wuxi Institute of Translational Medicine, Wuxi, P.R. China
| | - Youai Dai
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China.,Wuxi Institute of Translational Medicine, Wuxi, P.R. China
| | - Xusheng Yang
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China.,Wuxi Institute of Translational Medicine, Wuxi, P.R. China
| | - Yong Yao
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China
| | - Ting-Ting Wei
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China.,Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, P.R. China.,Wuxi Institute of Translational Medicine, Wuxi, P.R. China
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15
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Janatpour ZC, Korotcov A, Bosomtwi A, Dardzinski BJ, Symes AJ. Subcutaneous Administration of Angiotensin-(1-7) Improves Recovery after Traumatic Brain Injury in Mice. J Neurotrauma 2019; 36:3115-3131. [DOI: 10.1089/neu.2019.6376] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Affiliation(s)
- Zachary C. Janatpour
- Department of Pharmacology and Molecular Therapeutics, Program in Molecular and Cell Biology, Uniformed Services University, Bethesda, Maryland
| | - Alexandru Korotcov
- Translational Imaging Core, Center for Neuroscience and Regenerative Medicine, Uniformed Services University, Bethesda, Maryland
| | - Asamoah Bosomtwi
- Translational Imaging Core, Center for Neuroscience and Regenerative Medicine, Uniformed Services University, Bethesda, Maryland
| | - Bernard J. Dardzinski
- Translational Imaging Core, Center for Neuroscience and Regenerative Medicine, Uniformed Services University, Bethesda, Maryland
- Department of Radiology and Radiological Sciences, Uniformed Services University, Bethesda, Maryland
| | - Aviva J. Symes
- Department of Pharmacology and Molecular Therapeutics, Program in Molecular and Cell Biology, Uniformed Services University, Bethesda, Maryland
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16
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Mesenchymal Stem Cells in Homeostasis and Systemic Diseases: Hypothesis, Evidences, and Therapeutic Opportunities. Int J Mol Sci 2019; 20:ijms20153738. [PMID: 31370159 PMCID: PMC6696100 DOI: 10.3390/ijms20153738] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 07/29/2019] [Indexed: 12/21/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are present in all organs and tissues, playing a well-known function in tissue regeneration. However, there is also evidence indicating a broader role of MSCs in tissue homeostasis. In vivo studies have shown MSC paracrine mechanisms displaying proliferative, immunoregulatory, anti-oxidative, or angiogenic activity. In addition, recent studies also demonstrate that depletion and/or dysfunction of MSCs are associated with several systemic diseases, such as lupus, diabetes, psoriasis, and rheumatoid arthritis, as well as with aging and frailty syndrome. In this review, we hypothesize about the role of MSCs as keepers of tissue homeostasis as well as modulators in a variety of inflammatory and degenerative systemic diseases. This scenario opens the possibility for the use of secretome-derived products from MSCs as new therapeutic agents in order to restore tissue homeostasis, instead of the classical paradigm "one disease, one drug".
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17
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Joshi S, Wollenzien H, Leclerc E, Jarajapu YP. Hypoxic regulation of angiotensin-converting enzyme 2 and Mas receptor in human CD34 + cells. J Cell Physiol 2019; 234:20420-20431. [PMID: 30989646 DOI: 10.1002/jcp.28643] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 03/13/2019] [Accepted: 03/19/2019] [Indexed: 12/16/2022]
Abstract
CD34+ hematopoietic stem/progenitor cells (HSPCs) are vasculogenic and hypoxia is a strong stimulus for the vasoreparative functions of these cells. Angiotensin-converting enzyme 2 (ACE2)/angiotensin-(1-7)/Mas receptor (MasR) pathway stimulates vasoprotective functions of CD34+ cells. This study tested if ACE2 and MasR are involved in the hypoxic stimulation of CD34+ cells. Cells were isolated from circulating mononuclear cells derived from healthy subjects (n = 46) and were exposed to normoxia (20% O2 ) or hypoxia (1% O2 ). Luciferase reporter assays were carried out in cells transduced with lentivirus carrying ACE2- or MasR- or a scramble-3'-untranslated region gene with a firefly luciferase reporter. Expressions or activities of ACE, angiotensin receptor Type 1 (AT1R), ACE2, and MasR were determined. In vitro observations were verified in HSPCs derived from mice undergoing hindlimb ischemia (HLI). In vitro exposure to hypoxia-increased proliferation and migration of CD34+ cells in basal conditions or in response to vascular endothelial growth factor (VEGF) or stromal-derived factor 1α (SDF) compared with normoxia. Expression of ACE2 or MasR was increased relative to normoxia while ACE or AT1R expressions were unaltered. Luciferase activity was increased by hypoxia in cells transfected with the luciferase reporter plasmids coding for the ACE2- or MasR promoters relatively to the control. The effects of hypoxia were mimicked by VEGF or SDF under normoxia. Hypoxia-induced ADAM17-dependent shedding of functional ACE2 fragments. In mice undergoing HLI, increased expression/activity of ACE2 and MasR were observed in the circulating HSPCs. This study provides compelling evidence for the hypoxic upregulation of ACE2 and MasR in CD34+ cells, which likely contributes to vascular repair.
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Affiliation(s)
- Shrinidh Joshi
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, North Dakota
| | - Hannah Wollenzien
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, North Dakota
| | - Estelle Leclerc
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, North Dakota
| | - Yagna Pr Jarajapu
- Department of Pharmaceutical Sciences, College of Health Professions, North Dakota State University, Fargo, North Dakota
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18
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Kuipers A, Moll GN, Wagner E, Franklin R. Efficacy of lanthionine-stabilized angiotensin-(1-7) in type I and type II diabetes mouse models. Peptides 2019; 112:78-84. [PMID: 30529303 DOI: 10.1016/j.peptides.2018.10.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/22/2018] [Accepted: 10/23/2018] [Indexed: 12/19/2022]
Abstract
Native angiotensin-(1-7) exerts many therapeutic effects. However, it is rapidly degraded by ACE and other peptidases. This drawback is largely eliminated for lanthionine-stabilized angiotensin-(1-7), termed cAng-(1-7), which is fully resistant to ACE and has strongly increased resistance to other peptidases. Goal of the present study was to test whether cAng-(1-7) has therapeutic activity in diabetes mouse models: in a multiple low dose streptozotocin-induced model of type I diabetes and / or in a db/db model of type II diabetes. In the type I diabetes model cAng-(1-7) caused in an increase in the insulin level of 133% in week 4 (p < 0.001) compared to vehicle, and in the type II diabetes model an increase of 55% of the insulin level in week 8 (p < 0.05) compared to vehicle. cAng-(1-7) reduced blood glucose levels in the type I model by 37% at day 22 (p < 0.001) and in the type II diabetes model by 17% at day 63 of treatment (p < 0.001) and in an oral glucose tolerance test in a type II diabetes model, by 17% at week 4 (p < 0.01). cAng-(1-7) also caused a reduction of glycated hemoglobin levels in the type II diabetes model of 21% in week 6 (p < 0,001). These data are consistent with therapeutic potential of cAng-(1-7) in type I and II diabetes.
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Affiliation(s)
- Anneke Kuipers
- Lanthio Pharma, a MorphoSys AG company, 9727 DL, Groningen, the Netherlands
| | - Gert N Moll
- Lanthio Pharma, a MorphoSys AG company, 9727 DL, Groningen, the Netherlands; Department of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747 AG, Groningen, the Netherlands.
| | - Elizabeth Wagner
- Constant Pharmaceuticals LLC, 398 Columbus Ave, PMB 507, Boston, MA, 02116, USA
| | - Rick Franklin
- Constant Pharmaceuticals LLC, 398 Columbus Ave, PMB 507, Boston, MA, 02116, USA
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19
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Santos RAS. Genetic Models. ANGIOTENSIN-(1-7) 2019. [PMCID: PMC7120897 DOI: 10.1007/978-3-030-22696-1_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Genetically altered rat and mouse models have been instrumental in the functional analysis of genes in a physiological context. In particular, studies on the renin-angiotensin system (RAS) have profited from this technology in the past. In this review, we summarize the existing animal models for the protective axis of the RAS consisting of angiotensin-converting enzyme 2 (ACE2), angiotensin-(1-7)(Ang-(1-7), and its receptor Mas. With the help of models with altered expression of the components of this axis in the brain and cardiovascular organs, its physiological and pathophysiological functions have been elucidated. Thus, novel opportunities for therapeutic interventions in cardiovascular diseases were revealed targeting ACE2 or Mas.
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20
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Redondo J, Sarkar P, Kemp K, Heesom KJ, Wilkins A, Scolding NJ, Rice CM. Dysregulation of Mesenchymal Stromal Cell Antioxidant Responses in Progressive Multiple Sclerosis. Stem Cells Transl Med 2018; 7:748-758. [PMID: 30063300 PMCID: PMC6186266 DOI: 10.1002/sctm.18-0045] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 05/31/2018] [Accepted: 06/05/2018] [Indexed: 12/15/2022] Open
Abstract
The potential of autologous cell-based therapies including those using multipotent mesenchymal stromal cells (MSCs) is being investigated for multiple sclerosis (MS) and other neurological conditions. However, the phenotype of MSC in neurological diseases has not been fully characterized. We have previously shown that MSC isolated from patients with progressive MS (MS-MSC) have reduced expansion potential, premature senescence, and reduced neuroprotective potential in vitro. In view of the role of antioxidants in ageing and neuroprotection, we examined the antioxidant capacity of MS-MSC demonstrating that MS-MSC secretion of antioxidants superoxide dismutase 1 (SOD1) and glutathione S-transferase P (GSTP) is reduced and correlates negatively with the duration of progressive phase of MS. We confirmed reduced expression of SOD1 and GSTP by MS-MSC along with reduced activity of SOD and GST and, to examine the antioxidant capacity of MS-MSC under conditions of nitrosative stress, we established an in vitro cell survival assay using nitric oxide-induced cell death. MS-MSC displayed differential susceptibility to nitrosative stress with accelerated senescence and greater decline in expression of SOD1 and GSTP in keeping with reduced expression of master regulators of antioxidant responses nuclear factor erythroid 2-related factor 2 and peroxisome proliferator-activated receptor gamma coactivator 1-α. Our results are compatible with dysregulation of antioxidant responses in MS-MSC and have significant implications for development of autologous MSC-based therapies for MS, optimization of which may require that these functional deficits are reversed. Furthermore, improved understanding of the underlying mechanisms may yield novel insights into MS pathophysiology and biomarker identification. Stem Cells Translational Medicine 2018;7:748-758.
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Affiliation(s)
- Juliana Redondo
- Clinical Neuroscience, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Pamela Sarkar
- Clinical Neuroscience, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Kevin Kemp
- Clinical Neuroscience, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Kate J Heesom
- Proteomics Facility, University of Bristol, Bristol, United Kingdom
| | - Alastair Wilkins
- Clinical Neuroscience, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Neil J Scolding
- Clinical Neuroscience, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Claire M Rice
- Clinical Neuroscience, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
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21
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Duan Y, Beli E, Li Calzi S, Quigley JL, Miller RC, Moldovan L, Feng D, Salazar TE, Hazra S, Al-Sabah J, Chalam KV, Phuong Trinh TL, Meroueh M, Markel TA, Murray MC, Vyas RJ, Boulton ME, Parsons-Wingerter P, Oudit GY, Obukhov AG, Grant MB. Loss of Angiotensin-Converting Enzyme 2 Exacerbates Diabetic Retinopathy by Promoting Bone Marrow Dysfunction. Stem Cells 2018; 36:1430-1440. [PMID: 29761600 DOI: 10.1002/stem.2848] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 04/01/2018] [Accepted: 04/22/2018] [Indexed: 01/20/2023]
Abstract
Angiotensin-converting enzyme 2 (ACE2) is the primary enzyme of the vasoprotective axis of the renin angiotensin system (RAS). We tested the hypothesis that loss of ACE2 would exacerbate diabetic retinopathy by promoting bone marrow dysfunction. ACE2-/y were crossed with Akita mice, a model of type 1 diabetes. When comparing the bone marrow of the ACE2-/y -Akita mice to that of Akita mice, we observed a reduction of both short-term and long-term repopulating hematopoietic stem cells, a shift of hematopoiesis toward myelopoiesis, and an impairment of lineage- c-kit+ hematopoietic stem/progenitor cell (HS/PC) migration and proliferation. Migratory and proliferative dysfunction of these cells was corrected by exposure to angiotensin-1-7 (Ang-1-7), the protective peptide generated by ACE2. Over the duration of diabetes examined, ACE2 deficiency led to progressive reduction in electrical responses assessed by electroretinography and to increases in neural infarcts observed by fundus photography. Compared with Akita mice, ACE2-/y -Akita at 9-months of diabetes showed an increased number of acellular capillaries indicative of more severe diabetic retinopathy. In diabetic and control human subjects, CD34+ cells, a key bone marrow HS/PC population, were assessed for changes in mRNA levels for MAS, the receptor for Ang-1-7. Levels were highest in CD34+ cells from diabetics without retinopathy. Higher serum Ang-1-7 levels predicted protection from development of retinopathy in diabetics. Treatment with Ang-1-7 or alamandine restored the impaired migration function of CD34+ cells from subjects with retinopathy. These data support that activation of the protective RAS within HS/PCs may represents a therapeutic strategy for prevention of diabetic retinopathy. Stem Cells 2018;36:1430-1440.
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Affiliation(s)
- Yaqian Duan
- Department of Cellular and Integrative Physiology, Jacksonville, Florida, USA.,Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Jacksonville, Florida, USA
| | - Eleni Beli
- Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Jacksonville, Florida, USA
| | - Sergio Li Calzi
- Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Jacksonville, Florida, USA.,Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Judith L Quigley
- Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Jacksonville, Florida, USA
| | - Rehae C Miller
- Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Jacksonville, Florida, USA
| | - Leni Moldovan
- Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Jacksonville, Florida, USA
| | - Dongni Feng
- Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Jacksonville, Florida, USA
| | - Tatiana E Salazar
- Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Jacksonville, Florida, USA
| | - Sugata Hazra
- Department of Biological Sciences and Bioengineering, IIT Kanpur, Kanpur, India
| | - Jude Al-Sabah
- Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Jacksonville, Florida, USA
| | - Kakarla V Chalam
- Department of Ophthalmology, University of Florida, Jacksonville, Florida, USA
| | - Thao Le Phuong Trinh
- Department of Cellular and Integrative Physiology, Jacksonville, Florida, USA.,Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Jacksonville, Florida, USA
| | - Marya Meroueh
- Department of Cellular and Integrative Physiology, Jacksonville, Florida, USA
| | - Troy A Markel
- Riley Hospital for Children, Pediatric Surgery, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Matthew C Murray
- Space Life Sciences Research Branch, NASA Ames Research Center, Moffett Field, California, USA
| | - Ruchi J Vyas
- Carl Zeiss Meditec, Inc., Dublin, California, USA
| | - Michael E Boulton
- Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Jacksonville, Florida, USA.,Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | | | - Gavin Y Oudit
- Department of Medicine, Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada
| | - Alexander G Obukhov
- Department of Cellular and Integrative Physiology, Jacksonville, Florida, USA
| | - Maria B Grant
- Department of Ophthalmology, Eugene and Marilyn Glick Eye Institute, Jacksonville, Florida, USA.,Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, Birmingham, Alabama, USA
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22
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Xu R, Yallowitz A, Qin A, Wu Z, Shin DY, Kim JM, Debnath S, Ji G, Bostrom MP, Yang X, Zhang C, Dong H, Kermani P, Lalani S, Li N, Liu Y, Poulos MG, Wach A, Zhang Y, Inoue K, Di Lorenzo A, Zhao B, Butler JM, Shim JH, Glimcher LH, Greenblatt MB. Targeting skeletal endothelium to ameliorate bone loss. Nat Med 2018; 24:823-833. [PMID: 29785024 PMCID: PMC5992080 DOI: 10.1038/s41591-018-0020-z] [Citation(s) in RCA: 215] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 03/22/2018] [Indexed: 11/08/2022]
Abstract
Recent studies have identified a specialized subset of CD31hiendomucinhi (CD31hiEMCNhi) vascular endothelium that positively regulates bone formation. However, it remains unclear how CD31hiEMCNhi endothelium levels are coupled to anabolic bone formation. Mice with an osteoblast-specific deletion of Shn3, which have markedly elevated bone formation, demonstrated an increase in CD31hiEMCNhi endothelium. Transcriptomic analysis identified SLIT3 as an osteoblast-derived, SHN3-regulated proangiogenic factor. Genetic deletion of Slit3 reduced skeletal CD31hiEMCNhi endothelium, resulted in low bone mass because of impaired bone formation and partially reversed the high bone mass phenotype of Shn3-/- mice. This coupling between osteoblasts and CD31hiEMCNhi endothelium is essential for bone healing, as shown by defective fracture repair in SLIT3-mutant mice and enhanced fracture repair in SHN3-mutant mice. Finally, administration of recombinant SLIT3 both enhanced bone fracture healing and counteracted bone loss in a mouse model of postmenopausal osteoporosis. Thus, drugs that target the SLIT3 pathway may represent a new approach for vascular-targeted osteoanabolic therapy to treat bone loss.
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Affiliation(s)
- Ren Xu
- Department of Pathology and Laboratory Medicine, Cornell University, New York, NY, USA
| | - Alisha Yallowitz
- Department of Pathology and Laboratory Medicine, Cornell University, New York, NY, USA
| | - An Qin
- Department of Orthopaedics, Shanghai Key Laboratory of Orthopaedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zhuhao Wu
- Laboratory of Brain Development and Repair, The Rockefeller University, New York, NY, USA
| | - Dong Yeon Shin
- Department of Pathology and Laboratory Medicine, Cornell University, New York, NY, USA
| | - Jung-Min Kim
- Division of Rheumatology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Shawon Debnath
- Department of Pathology and Laboratory Medicine, Cornell University, New York, NY, USA
| | - Gang Ji
- Research Division, Hospital for Special Surgery, New York, NY, USA
- Department of Joint Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Mathias P Bostrom
- Research Division, Hospital for Special Surgery, New York, NY, USA
- Division of Adult Reconstruction and Joint Replacement, Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Xu Yang
- Research Division, Hospital for Special Surgery, New York, NY, USA
| | - Chao Zhang
- Institute for Computational Biomedicine, Cornell University, New York, NY, USA
| | - Han Dong
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute and Harvard University Medical School, Boston, MA, USA
- Department of Medicine, Harvard Medical School and Brigham and Women's Hospital, Boston, MA, USA
| | - Pouneh Kermani
- Division of Regenerative Medicine, Department of Medicine, Ansary Stem Cell Institute, Cornell University, New York, NY, USA
| | - Sarfaraz Lalani
- Department of Pathology and Laboratory Medicine, Cornell University, New York, NY, USA
| | - Na Li
- Department of Pathology and Laboratory Medicine, Cornell University, New York, NY, USA
| | - Yifang Liu
- Department of Pathology and Laboratory Medicine, Cornell University, New York, NY, USA
| | - Michael G Poulos
- Division of Regenerative Medicine, Department of Medicine, Ansary Stem Cell Institute, Cornell University, New York, NY, USA
| | - Amanda Wach
- Department of Biomechanics, Hospital for Special Surgery, New York, NY, USA
| | - Yi Zhang
- Department of Pathology and Laboratory Medicine, Cornell University, New York, NY, USA
| | - Kazuki Inoue
- Arthritis and Tissue Degeneration Program and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, Cornell University, New York, NY, USA
| | - Annarita Di Lorenzo
- Department of Pathology and Laboratory Medicine, Cornell University, New York, NY, USA
| | - Baohong Zhao
- Arthritis and Tissue Degeneration Program and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, Cornell University, New York, NY, USA
| | - Jason M Butler
- Division of Regenerative Medicine, Department of Medicine, Ansary Stem Cell Institute, Cornell University, New York, NY, USA
| | - Jae-Hyuck Shim
- Division of Rheumatology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Laurie H Glimcher
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute and Harvard University Medical School, Boston, MA, USA.
- Department of Medicine, Harvard Medical School and Brigham and Women's Hospital, Boston, MA, USA.
| | - Matthew B Greenblatt
- Department of Pathology and Laboratory Medicine, Cornell University, New York, NY, USA.
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