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Suryawan IGR, Pikir BS, Rantam FA, Ratri AK, Nugraha RA. Hypoxic Preconditioning Promotes Survival of Human Adipose Derived Mesenchymal Stem Cell. F1000Res 2024; 10:843. [PMID: 38938689 PMCID: PMC11208860 DOI: 10.12688/f1000research.55351.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/11/2024] [Indexed: 06/29/2024] Open
Abstract
Background: Contributing factors for improved survival of human adipocytes mesenchymal stem cells (h-AMSCs) cultured through hypoxia preconditioning, in example apoptosis inhibition involving BCL2 and HSP27 expression, trigger signal expression (VEGF), SCF expression, OCT-4 expression, and CD44+ expression. The objective if this study was to explain the mechanism and role of hypoxic preconditioning and the optimal duration of hypoxic preconditioning exposure to improve survival of h-AMSCs. Methods: An experimental laboratory explorative study ( in vitro) with hypoxic preconditioning in h-AMSCs cultures. This research was conducted through four stages. First, isolation of h-AMSCs culture from adipose tissue of patients. Second, the characterization of h-AMSCs from adipose tissue by phenotype (flowcytometry) through CD44+, CD90+ and CD45-expression before being pre-conditioned for hypoxic treatment. Third, the hypoxic preconditioning in h-AMSCs culture ( in vitro) was performed with an oxygen concentration of 1% for 24, 48 and 72 hours. Fourth, observation of survival from h-AMSCs culture was tested on the role of CD44+, VEGF, SCF, OCT-4, BCL2, HSP27 with Flowcytometry and apoptotic inhibition by Tunnel Assay method. Results: The result of regression test showed that time difference had an effect on VEGF expression ( p<0.001; β=-0.482) and hypoxia condition also influenced VEGF expression ( p<0.001; β=0.774). The result of path analysis showed that SCF had effect on OCT-4 expression ( p<0.001; β=0.985). The regression test results showed that time effects on HSP27 expression ( p<0.001; β=0.398) and hypoxia precondition also affects HSP27 expression ( p<0.001; β=0.847). Pathway analysis showed that BCL2 expression inhibited apoptosis ( p=0.030; β=-0.442) and HSP27 expression also inhibited apoptosis ( p<0,001; β=-0.487). Conclusion: Hypoxic preconditioning of h-AMSC culture has proven to increase the expression of VEGF, SCF, OCT-4, and BCL2 and HSP27. This study demonstrated and explained the existence of a new mechanism of increased h-AMSC survival in cultures with hypoxic preconditioning (O2 1%) via VEGF, SCF, OCT-4, BCL2, and HSP 27.
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Affiliation(s)
- I Gde Rurus Suryawan
- Cardiology and Vascular Medicine, Universitas Airlangga, Surabaya, East Java, 60286, Indonesia
| | - Budi Susetyo Pikir
- Cardiology and Vascular Medicine, Universitas Airlangga, Surabaya, East Java, 60286, Indonesia
| | - Fedik Abdul Rantam
- Virology and Immunology, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, East Java, 60286, Indonesia
| | - Anudya Kartika Ratri
- Cardiology and Vascular Medicine, Universitas Airlangga, Surabaya, East Java, 60286, Indonesia
| | - Ricardo Adrian Nugraha
- Cardiology and Vascular Medicine, Universitas Airlangga, Surabaya, East Java, 60286, Indonesia
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2
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Chen L, Zheng B, Xu Y, Sun C, Wu W, Xie X, Zhu Y, Cai W, Lin S, Luo Y, Shi C. Nano hydrogel-based oxygen-releasing stem cell transplantation system for treating diabetic foot. J Nanobiotechnology 2023; 21:202. [PMID: 37370102 DOI: 10.1186/s12951-023-01925-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 05/10/2023] [Indexed: 06/29/2023] Open
Abstract
The employment of stem cells and hydrogel is widespread in contemporary clinical approaches to treating diabetic foot ulcers. However, the hypoxic conditions in the surrounding lesion tissue lead to a low stem cell survival rate following transplantation. This research introduces a novel hydrogel with superior oxygen permeability and biocompatibility, serving as a vehicle for developing a stem cell transplantation system incorporating oxygen-releasing microspheres and cardiosphere-derived stem cells (CDCs). By optimizing the peroxidase fixation quantity on the microsphere surface and the oxygen-releasing microsphere content within the transplantation system, intracellular oxygen levels were assessed using electron paramagnetic resonance (EPR) under simulated low-oxygen conditions in vitro. The expression of vascularization and repair-related indexes were evaluated via RT-PCR and ELISA. The microspheres were found to continuously release oxygen for three weeks within the transplantation system, promoting growth factor expression to maintain intracellular oxygen levels and support the survival and proliferation of CDCs. Moreover, the effect of this stem cell transplantation system on wound healing in a diabetic foot mice model was examined through an in vivo animal experiment. The oxygen-releasing microspheres within the transplantation system preserved the intracellular oxygen levels of CDCs in the hypoxic environment of injured tissues. By inhibiting the expression of inflammatory factors and stimulating the upregulation of pertinent growth factors, it improved the vascularization of ulcer tissue on the mice's back and expedited the healing of the wound site. Overall, the stem cell transplantation system in this study, based on hydrogels containing CDCs and oxygen-releasing microspheres, offers a promising strategy for the clinical implementation of localized stem cell delivery to improve diabetic foot wound healing.
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Affiliation(s)
- Liangmiao Chen
- Department of Endocrinology, The Third Affiliated Hospital of Wenzhou Medical University, 325200, Wenzhou, Zhejiang, China
| | - Bingru Zheng
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China
| | - Yizhou Xu
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China
| | - Changzheng Sun
- Institute of Cardiovascular Development and Translational Medicine, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, Zhejiang, China
| | - Wanrui Wu
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China
| | - Xiangpang Xie
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China
| | - Yu Zhu
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China
| | - Wei Cai
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China
| | - Suifang Lin
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China
| | - Ya Luo
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China.
| | - Changsheng Shi
- Department of Interventional Vascular Surgery, The Third Affiliated Hospital of Wenzhou Medical University, No.108 Wansong Road, 325200, Wenzhou, Zhejiang, China.
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3
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Zhao Y, Wang S, Song X, Yuan J, Qi D, Gu X, Yin MY, Han Z, Zhu Y, Liu Z, Zhang Y, Wei L, Wei ZZ. Glial Cell-Based Vascular Mechanisms and Transplantation Therapies in Brain Vessel and Neurodegenerative Diseases. Front Cell Neurosci 2021; 15:627682. [PMID: 33841101 PMCID: PMC8032950 DOI: 10.3389/fncel.2021.627682] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 01/26/2021] [Indexed: 12/12/2022] Open
Abstract
Neurodevelopmental and neurodegenerative diseases (NDDs) with severe neurological/psychiatric symptoms, such as cerebrovascular pathology in AD, CAA, and chronic stroke, have brought greater attention with their incidence and prevalence having markedly increased over the past few years. Causes of the significant neuropathologies, especially those observed in neurological diseases in the CNS, are commonly believed to involve multiple factors such as an age, a total environment, genetics, and an immunity contributing to their progression, neuronal, and vascular injuries. We primarily focused on the studies of glial involvement/dysfunction in part with the blood-brain barrier (BBB) and the neurovascular unit (NVU) changes, and the vascular mechanisms, which have been both suggested as critical roles in chronic stroke and many other NDDs. It has been noted that glial cells including astrocytes (which outnumber other cell types in the CNS) essentially contribute more to the BBB integrity, extracellular homeostasis, neurotransmitter release, regulation of neurogenic niches in response to neuroinflammatory stimulus, and synaptic plasticity. In a recent study for NDDs utilizing cellular and molecular biology and genetic and pharmacological tools, the role of reactive astrocytes (RACs) and gliosis was demonstrated, able to trigger pathophysiological/psychopathological detrimental changes during the disease progression. We speculate, in particular, the BBB, the NVU, and changes of the astrocytes (potentially different populations from the RACs) not only interfere with neuronal development and synaptogenesis, but also generate oxidative damages, contribute to beta-amyloid clearances and disrupted vasculature, as well as lead to neuroinflammatory disorders. During the past several decades, stem cell therapy has been investigated with a research focus to target related neuro-/vascular pathologies (cell replacement and repair) and neurological/psychiatric symptoms (paracrine protection and homeostasis). Evidence shows that transplantation of neurogenic or vasculogenic cells could be achieved to pursue differentiation and maturation within the diseased brains as expected. It would be hoped that, via regulating functions of astrocytes, astrocytic involvement, and modulation of the BBB, the NVU and astrocytes should be among major targets for therapeutics against NDDs pathogenesis by drug and cell-based therapies. The non-invasive strategies in combination with stem cell transplantation such as the well-tested intranasal deliveries for drug and stem cells by our and many other groups show great translational potentials in NDDs. Neuroimaging and clinically relevant analyzing tools need to be evaluated in various NDDs brains.
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Affiliation(s)
- Yingying Zhao
- Beijing Clinical Research Institute, Beijing, China.,Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA, United States.,Department of Critical Care Medicine, Airport Hospital of Tianjin Medical University General Hospital, Tianjin, China
| | - Shuanglin Wang
- Department of Critical Care Medicine, Airport Hospital of Tianjin Medical University General Hospital, Tianjin, China.,Department of Cardiovascular Thoracic Surgery, Tianjin Medical University General Hospital, Tianjin, China.,Institute of Neurology, Tianjin Medical University General Hospital, Tianjin, China
| | - Xiaopeng Song
- Mclean Imaging Center, Harvard Medical School, McLean Hospital, Belmont, MA, United States
| | - Junliang Yuan
- Mclean Imaging Center, Harvard Medical School, McLean Hospital, Belmont, MA, United States.,Department of Neurology, Institute of Mental Health, Peking University Sixth Hospital, Beijing, China
| | - Dong Qi
- Beijing Clinical Research Institute, Beijing, China
| | - Xiaohuan Gu
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA, United States
| | - Michael Yaoyao Yin
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT, United States.,Division of Cardiology, Emory University School of Medicine, Atlanta, GA, United States
| | - Zhou Han
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, United States
| | - Yanbing Zhu
- Beijing Clinical Research Institute, Beijing, China
| | - Zhandong Liu
- Beijing Clinical Research Institute, Beijing, China
| | - Yongbo Zhang
- Beijing Clinical Research Institute, Beijing, China
| | - Ling Wei
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA, United States
| | - Zheng Zachory Wei
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA, United States.,Emory Specialized Center of Sex Differences, Emory University, Atlanta, GA, United States
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4
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Lengel D, Sevilla C, Romm ZL, Huh JW, Raghupathi R. Stem Cell Therapy for Pediatric Traumatic Brain Injury. Front Neurol 2020; 11:601286. [PMID: 33343501 PMCID: PMC7738475 DOI: 10.3389/fneur.2020.601286] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 11/10/2020] [Indexed: 12/11/2022] Open
Abstract
There has been a growing interest in the potential of stem cell transplantation as therapy for pediatric brain injuries. Studies in pre-clinical models of pediatric brain injury such as Traumatic Brain Injury (TBI) and neonatal hypoxia-ischemia (HI) have contributed to our understanding of the roles of endogenous stem cells in repair processes and functional recovery following brain injury, and the effects of exogenous stem cell transplantation on recovery from brain injury. Although only a handful of studies have evaluated these effects in models of pediatric TBI, many studies have evaluated stem cell transplantation therapy in models of neonatal HI which has a considerable overlap of injury pathology with pediatric TBI. In this review, we have summarized data on the effects of stem cell treatments on histopathological and functional outcomes in models of pediatric brain injury. Importantly, we have outlined evidence supporting the potential for stem cell transplantation to mitigate pathology of pediatric TBI including neuroinflammation and white matter injury, and challenges that will need to be addressed to incorporate these therapies to improve functional outcomes following pediatric TBI.
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Affiliation(s)
- Dana Lengel
- Graduate Program in Neuroscience, Drexel University College of Medicine, Philadelphia, PA, United States
| | - Cruz Sevilla
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA, United States
| | - Zoe L Romm
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA, United States
| | - Jimmy W Huh
- Department of Anesthesiology and Critical Care, Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Ramesh Raghupathi
- Graduate Program in Neuroscience, Drexel University College of Medicine, Philadelphia, PA, United States.,Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA, United States
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5
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Othman FA, Tan SC. Preconditioning Strategies to Enhance Neural Stem Cell-Based Therapy for Ischemic Stroke. Brain Sci 2020; 10:E893. [PMID: 33238363 PMCID: PMC7700351 DOI: 10.3390/brainsci10110893] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 11/18/2020] [Indexed: 02/05/2023] Open
Abstract
Transplantation of neural stem cells (NSCs) has been proposed as an alternative novel therapy to replace damaged neural circuitry after ischemic stroke onset. Nonetheless, albeit the potential of these cells for stroke therapy, many critical challenges are yet to be overcome to reach clinical applications. The major limitation of the NSC-based therapy is its inability to retain most of the donor stem cells after grafting into an ischemic brain area which is lacking of essential oxygen and nutrients for the survival of transplanted cells. Low cell survival rate limits the capacity of NSCs to repair the injured area and this poses a much more difficult challenge to the NSC-based therapy for ischemic stroke. In order to enhance the survival of transplanted cells, several stem cell culture preconditioning strategies have been employed. For ischemic diseases, hypoxic preconditioning is the most commonly applied strategy since the last few decades. Now, the preconditioning strategies have been developed and expanded enormously throughout years of efforts. This review systematically presented studies searched from PubMed, ScienceDirect, Web of Science, Scopus and the Google Scholar database up to 31 March 2020 based on search words containing the following terms: "precondition" or "pretreatment" and "neural stem cell" and "ischemic stroke". The searched data comprehensively reported seven major NSC preconditioning strategies including hypoxic condition, small drug molecules such as minocycline, doxycycline, interleukin-6, adjudin, sodium butyrate and nicorandil, as well as electrical stimulation using conductive polymer for ischemic stroke treatment. We discussed therapeutic benefits gained from these preconditioned NSC for in vitro and in vivo stroke studies and the detailed insights of the mechanisms underlying these preconditioning approaches. Nonetheless, we noticed that there was a scarcity of evidence on the efficacy of these preconditioned NSCs in human clinical studies, therefore, it is still too early to draw a definitive conclusion on the efficacy and safety of this active compound for patient usage. Thus, we suggest for more in-depth clinical investigations of this cell-based therapy to develop into more conscientious and judicious evidence-based therapy for clinical application in the future.
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Affiliation(s)
| | - Suat Cheng Tan
- School of Health Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia;
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6
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Kwon H, Park M, Nepali S, Lew H. Hypoxia-Preconditioned Placenta-Derived Mesenchymal Stem Cells Rescue Optic Nerve Axons Via Differential Roles of Vascular Endothelial Growth Factor in an Optic Nerve Compression Animal Model. Mol Neurobiol 2020; 57:3362-3375. [PMID: 32524519 DOI: 10.1007/s12035-020-01965-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 05/28/2020] [Indexed: 12/15/2022]
Abstract
Human placenta-derived stem cells (hPSCs) with the therapeutic potential to recover from optic nerve injury have been reported. We have recently demonstrated that hPSCs have protective abilities against hypoxic damage. To improve the capacity of hPSCs, we established a hypoxia-preconditioned strain (HPPCs) using a hypoxic chamber. The hPSCs were exposed to short-term hypoxic conditions of 2.2% O2 and 5.5% CO2. We also performed in vivo experiments to demonstrate the recovery effects of HPPCs using an optic nerve injury rat model. Naïve hPSCs (and HPPCs) were injected into the optic nerve. After 1, 2, or 4 weeks, we analyzed changes in target proteins in the optic nerve tissues. In the retina, GAP43 expression was higher in both groups of naïve hPSCs and HPPCs versus sham controls. Two weeks after injection, all hPSC-injected groups showed recovery of tuj1 expression in damaged retinas. We also determined GFAP expression in retinas using the same model. In optic nerve tissues, HIF-1α levels were significantly lower in the HPPC-injected group 1 week after injury, and Thy-1 levels were higher in the hPSC-injected group at 4 weeks. There was also an enhanced recovery of Thy-1 expression after HPPC injection. In addition, R28 cells exposed to hypoxic conditions showed improved viability through enhanced recovery of HPPCs than naïve hPSCs. VEGF protein was a mediator in the recovery pathway via upregulation of target proteins regulated by HPPCs. Our results suggest that HPPCs may be candidates for cell therapy for the treatment of traumatic optic nerve injury.
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Affiliation(s)
- Heejung Kwon
- Department of Ophthalmology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - Mira Park
- Department of Ophthalmology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - Sarmila Nepali
- Department of Ophthalmology, University of Miami, Coral Gables, FL, USA
| | - Helen Lew
- Department of Ophthalmology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea.
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7
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Park BW, Jung SH, Das S, Lee SM, Park JH, Kim H, Hwang JW, Lee S, Kim HJ, Kim HY, Jung S, Cho DW, Jang J, Ban K, Park HJ. In vivo priming of human mesenchymal stem cells with hepatocyte growth factor-engineered mesenchymal stem cells promotes therapeutic potential for cardiac repair. SCIENCE ADVANCES 2020; 6:eaay6994. [PMID: 32284967 PMCID: PMC7141892 DOI: 10.1126/sciadv.aay6994] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 01/06/2020] [Indexed: 05/28/2023]
Abstract
The clinical use of human bone marrow-derived mesenchymal stem cells (BM-MSCs) has been hampered by their poor performance after transplantation into failing hearts. Here, to improve the therapeutic potential of BM-MSCs, we developed a strategy termed in vivo priming in which BM-MSCs are primed in vivo in myocardial infarction (MI)-induced hearts through genetically engineered hepatocyte growth factor-expressing MSCs (HGF-eMSCs) that are encapsulated within an epicardially implanted 3D cardiac patch. Primed BM-MSCs through HGF-eMSCs exhibited improved vasculogenic potential and cell viability, which ultimately enhanced vascular regeneration and restored cardiac function to the MI hearts. Histological analyses further demonstrated that the primed BM-MSCs survived longer within a cardiac patch and conferred cardioprotection evidenced by substantially higher numbers of viable cardiomyocytes in the MI hearts. These results provide compelling evidence that this in vivo priming strategy can be an effective means to enhance the cardiac repair of MI hearts.
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Affiliation(s)
- Bong-Woo Park
- Department of Medical Life Science, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137701, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137701, Republic of Korea
| | - Soo-Hyun Jung
- Department of Medical Life Science, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137701, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137701, Republic of Korea
| | - Sanskrita Das
- Department of Creative IT Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Namgu, Pohang, Kyungbuk 37673, Republic of Korea
| | - Soon Min Lee
- SL BIGEN Inc., 7F, Bldg. C, Korea Bio Park, Daewangpangyo-ro 700, Bundang-gu, Seongnam City, Gyeonggi-do, Republic of Korea
| | - Jae-Hyun Park
- Department of Medical Life Science, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137701, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137701, Republic of Korea
| | - Hyeok Kim
- Department of Medical Life Science, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137701, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137701, Republic of Korea
| | - Ji-Won Hwang
- Department of Medical Life Science, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137701, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137701, Republic of Korea
| | - Sunghun Lee
- Department of Biomedical Sciences, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
| | - Hyo-Jin Kim
- SL BIGEN Inc., 7F, Bldg. C, Korea Bio Park, Daewangpangyo-ro 700, Bundang-gu, Seongnam City, Gyeonggi-do, Republic of Korea
| | - Hey-Yon Kim
- SL BIGEN Inc., 7F, Bldg. C, Korea Bio Park, Daewangpangyo-ro 700, Bundang-gu, Seongnam City, Gyeonggi-do, Republic of Korea
| | - Seungman Jung
- Department of Creative IT Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Namgu, Pohang, Kyungbuk 37673, Republic of Korea
- School of Interdisciplinary Bioscience and Bioengineering, POSTECH, 77 Cheongam-ro, Hyogok-dong, Nam-gu, Pohang 37673, Republic of Korea
| | - Dong-Woo Cho
- Department of Mechanical Engineering, POSTECH, 77 Cheongam-ro, Hyogok-dong, Nam-gu, Pohang 37673, Republic of Korea
| | - Jinah Jang
- Department of Creative IT Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Namgu, Pohang, Kyungbuk 37673, Republic of Korea
- School of Interdisciplinary Bioscience and Bioengineering, POSTECH, 77 Cheongam-ro, Hyogok-dong, Nam-gu, Pohang 37673, Republic of Korea
- Department of Mechanical Engineering, POSTECH, 77 Cheongam-ro, Hyogok-dong, Nam-gu, Pohang 37673, Republic of Korea
| | - Kiwon Ban
- Department of Biomedical Sciences, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
| | - Hun-Jun Park
- Department of Medical Life Science, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137701, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 137701, Republic of Korea
- Cell Death Disease Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
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8
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Guan R, Lv J, Xiao F, Tu Y, Xie Y, Li L. Potential role of the cAMP/PKA/CREB signalling pathway in hypoxic preconditioning and effect on propofol‑induced neurotoxicity in the hippocampus of neonatal rats. Mol Med Rep 2019; 20:1837-1845. [PMID: 31257533 PMCID: PMC6625379 DOI: 10.3892/mmr.2019.10397] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 05/29/2019] [Indexed: 01/03/2023] Open
Abstract
Hypoxic preconditioning (HPC) is neuroprotective against ischaemic brain injury; however, the roles of potential anti‑apoptotic signals in this process have not been assessed. To elucidate the molecular mechanisms involved in HPC‑induced neuroprotection, the effects of HPC on the cyclic adenosine monophosphate (cAMP)/protein kinase A (PKA)/cAMP response element‑binding protein (CREB) signalling pathway and apoptosis in Sprague‑Dawley pups (postnatal day 7) treated with propofol were investigated. Western blot and histological analyses demonstrated that HPC exerts multiple effects on the hippocampus, including the upregulation of cAMP and phosphorylation of CREB. These effects were partially blocked by intracerebroventricular injection of the protein kinase antagonist H89 (5 µmol/5 µl). Notably, the level of cleaved caspase‑3 was significantly downregulated by treatment with the cAMP agonist Sp‑cAMP (20 nmol/5 µl). The results indicate that propofol increased the level of cleaved caspase‑3 and Bax by suppressing the activity of cAMP‑dependent proteins and Bcl‑2; thus, HPC prevents propofol from triggering apoptosis via the cAMP/PKA/CREB signalling pathway.
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Affiliation(s)
- Ruicong Guan
- Department of Anaesthesiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Jing Lv
- Department of Anaesthesiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Fei Xiao
- Department of Anaesthesiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Youbing Tu
- Department of Anaesthesiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Yubo Xie
- Department of Anaesthesiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Li Li
- Department of Anaesthesiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
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9
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Kang IN, Lee CY, Tan SC. Selection of best reference genes for qRT-PCR analysis of human neural stem cells preconditioned with hypoxia or baicalein-enriched fraction extracted from Oroxylum indicum medicinal plant. Heliyon 2019; 5:e02156. [PMID: 31388587 PMCID: PMC6676056 DOI: 10.1016/j.heliyon.2019.e02156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 06/11/2019] [Accepted: 07/23/2019] [Indexed: 12/29/2022] Open
Abstract
Whilst the potential of neural stem cell (NSC)-based treatment is recognized worldwide and seems to offer a promising therapeutic option for stroke treatments, there is currently no full understanding regarding the effects of hypoxic and baicalein-enriched fraction (BEF) preconditioning approaches on the therapeutic potential of these cells for stroke. The potential of preconditioned NSC can be determined based on the expression of several key neuroprotective genes using qRT-PCR technique. However, prior to that, it is imperative and extremely important to carefully select reference gene(s) for accurate qRT-PCR data normalization to avoid error in data interpretation. This study aimed to evaluate the stability of ten candidate reference genes via comprehensive analysis using three algorithms software: geNorm, NormFinder and BestKeeper. Our results revealed that HPRT1 and RPL13A were the most reliable reference genes for BEF-preconditioned NSCs, but ironically, HPRT1 was ranked as the least stable reference gene for hypoxic-preconditioned NSCs. On the other hand, RPLP1 and RPL13A were selected as the most stably expressed pair of reference genes for hypoxic-preconditioned NSCs. In conclusion, this study has pointed out the importance of identifying valid reference genes and has presented the first significant validation on best reference genes recommended for qRT-PCR study involves NSC preconditioned with hypoxia or with BEF extracted from Oroxylum indicum medicinal plant.
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Affiliation(s)
- In Nee Kang
- School of Health Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Chong Yew Lee
- School of Pharmaceutical Sciences, Main Campus, Universiti Sains Malaysia, Penang, Malaysia
| | - Suat Cheng Tan
- School of Health Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
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Mori D, Miyagawa S, Matsuura R, Sougawa N, Fukushima S, Ueno T, Toda K, Kuratani T, Tomita K, Maeda N, Shimomura I, Sawa Y. Pioglitazone strengthen therapeutic effect of adipose-derived regenerative cells against ischemic cardiomyopathy through enhanced expression of adiponectin and modulation of macrophage phenotype. Cardiovasc Diabetol 2019; 18:39. [PMID: 30902059 PMCID: PMC6431071 DOI: 10.1186/s12933-019-0829-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 02/19/2019] [Indexed: 12/22/2022] Open
Abstract
Background The efficacy of cell transplantation in heart failure is reportedly modest, but adjuvant drugs combined with cell therapy may improve this efficacy. Peroxisome proliferator-activated receptor (PPAR)γ, one of the hypoglycemic medicine for diabetes mellitus, reportedly enhances cytokine production in adipose tissue-derived regenerative cells (ADRCs). We hypothesized that combined administration of PPARγ agonists and ADRCs may enhance the paracrine effects of adiponectin (APN), leading to functional recovery in a chronic myocardial infarction (MI) model. Methods ADRCs were isolated from adipose tissues of adult rats by gradient centrifugation and embedded in bio-compatible fibrin-glue to produce ADRCs grafts. In the in vitro study, the ADRCs grafts released APN, which was significantly enhanced by the PPARγ agonist (PGZ, pioglitazone). Transplantation of ADRCs grafts (group A), ADRCs mixed with PGZ (group AP), APN knockdown-ADRCs (group Si) or PGZ (group P) onto the epicardium or a sham operation (group C) was performed (n = 10–20 per group). Results The AP group showed significant improvement in ejection fraction compared to that in the other groups. In the AP group, a significantly larger number of M2-polarized macrophages was detected and existed for a significantly longer duration in the infarct area. Furthermore, comparing Si group and P group, western blotting of T-cadherin revealed that exogenous APN and local expression of T-cadherin were essential to this histological change and recovery of cardiac function. Conclusions Combined administration of PPARγ agonist and ADRSCs activated M2-polarized macrophages with enhancement of APN paracrine effects and lead to better cardiac function in a rat infarction model. Electronic supplementary material The online version of this article (10.1186/s12933-019-0829-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Daisuke Mori
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Ryohei Matsuura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Nagako Sougawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Satsuki Fukushima
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takayoshi Ueno
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Koichi Toda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Toru Kuratani
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Koichi Tomita
- Department of Plastic and Reconstructive Surgery, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Norikazu Maeda
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, 565-0871, Japan
| | - Iichiro Shimomura
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, 565-0871, Japan
| | - Yoshiki Sawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan. .,Medical Center for Translational Research, Osaka University Hospital, Osaka, Japan.
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Functionally Improved Mesenchymal Stem Cells to Better Treat Myocardial Infarction. Stem Cells Int 2018; 2018:7045245. [PMID: 30622568 PMCID: PMC6286742 DOI: 10.1155/2018/7045245] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 09/10/2018] [Accepted: 09/30/2018] [Indexed: 12/14/2022] Open
Abstract
Myocardial infarction (MI) is one of the leading causes of death worldwide. Mesenchymal stem cell (MSC) transplantation is considered a promising approach and has made significant progress in preclinical studies and clinical trials for treating MI. However, hurdles including poor survival, retention, homing, and differentiation capacity largely limit the therapeutic effect of transplanted MSCs. Many strategies such as preconditioning, genetic modification, cotransplantation with bioactive factors, and tissue engineering were developed to improve the survival and function of MSCs. On the other hand, optimizing the hostile transplantation microenvironment of the host myocardium is also of importance. Here, we review the modifications of MSCs as well as the host myocardium to improve the efficacy of MSC-based therapy against MI.
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12
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Chau MJ, Deveau TC, Gu X, Kim YS, Xu Y, Yu SP, Wei L. Delayed and repeated intranasal delivery of bone marrow stromal cells increases regeneration and functional recovery after ischemic stroke in mice. BMC Neurosci 2018; 19:20. [PMID: 29649974 PMCID: PMC5897929 DOI: 10.1186/s12868-018-0418-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Accepted: 03/24/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Stroke is a leading cause of death and disability worldwide, yet there are limited treatments available. Intranasal administration is a novel non-invasive strategy to deliver cell therapy into the brain. Cells delivered via the intranasal route can migrate from the nasal mucosa to the ischemic infarct and show acute neuroprotection as well as functional benefits. However, there is little information about the regenerative effects of this transplantation method in the delayed phase of stroke. We hypothesized that repeated intranasal deliveries of bone marrow stromal cells (BMSCs) would be feasible and could enhance delayed neurovascular repair and functional recovery after ischemic stroke. RESULTS Reverse transcription polymerase chain reaction and immunocytochemistry were performed to analyze the expression of regenerative factors including SDF-1α, CXCR4, VEGF and FAK in BMSCs. Ischemic stroke targeting the somatosensory cortex was induced in adult C57BL/6 mice by permanently occluding the right middle cerebral artery and temporarily occluding both common carotid arteries. Hypoxic preconditioned (HP) BMSCs (HP-BMSCs) with increased expression of surviving factors HIF-1α and Bcl-xl (1 × 106 cells/100 μl per mouse) or cell media were administered intranasally at 3, 4, 5, and 6 days after stroke. Mice received daily BrdU (50 mg/kg) injections until sacrifice. BMSCs were prelabeled with Hoechst 33342 and detected within the peri-infarct area 6 and 24 h after transplantation. In immunohistochemical staining, significant increases in NeuN/BrdU and Glut-1/BrdU double positive cells were seen in stroke mice received HP-BMSCs compared to those received regular BMSCs. HP-BMSC transplantation significantly increased local cerebral blood flow and improved performance in the adhesive removal test. CONCLUSIONS This study suggests that delayed and repeated intranasal deliveries of HP-treated BMSCs is an effective treatment to encourage regeneration after stroke.
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Affiliation(s)
- Monica J. Chau
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA 30322 USA
| | - Todd C. Deveau
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA 30322 USA
| | - Xiaohuan Gu
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA 30322 USA
| | - Yo Sup Kim
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA 30322 USA
| | - Yun Xu
- Department of Neurology, Nanjing University School of Medicine, Nanjing, China
| | - Shan Ping Yu
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA 30322 USA
- Center for Visual and Neurocognitive Rehabilitation, Veteran’s Affair Medical Center, Atlanta, GA USA
| | - Ling Wei
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA 30322 USA
- Department of Neurology, Emory University School of Medicine, Atlanta, GA 30322 USA
- Woodruff Memorial Research Building, Suite 617, Emory University School of Medicine, 101 Woodruff Circle, Atlanta, GA 30322 USA
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