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Liang X, Miao Y, Tong X, Chen J, Liu H, He Z, Liu A, Hu Z. Dental pulp mesenchymal stem cell-derived exosomes inhibit neuroinflammation and microglial pyroptosis in subarachnoid hemorrhage via the miRNA-197-3p/FOXO3 axis. J Nanobiotechnology 2024; 22:426. [PMID: 39030593 PMCID: PMC11264715 DOI: 10.1186/s12951-024-02708-w] [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: 01/19/2024] [Accepted: 07/05/2024] [Indexed: 07/21/2024] Open
Abstract
BACKGROUND Subarachnoid hemorrhage (SAH) is a severe stroke subtype that lacks effective treatment. Exosomes derived from human dental pulp stem cells (DPSCs) are a promising acellular therapeutic strategy for neurological diseases. However, the therapeutic effects of DPSC-derived exosomes (DPSC-Exos) on SAH remain unknown. In this study, we investigated the therapeutic effects and mechanisms of action of DPSC-Exos in SAH. MATERIALS AND METHODS SAH was established using 120 male Sprague-Dawley rats. One hour after SAH induction, DPSC-Exos were administered via tail vein injection. To investigate the effect of DPSC-Exos, SAH grading, short-term and long-term neurobehavioral assessments, brain water content, western blot (WB), immunofluorescence staining, Nissl staining, and HE staining were performed. The role of miR-197-3p/FOXO3 in regulating pyroptosis was demonstrated through miRNA sequencing, bioinformatics analysis, and rescue experiments. The SAH model in vitro was established by stimulating BV2 cells with hemoglobin (Hb) and the underlying mechanism of DPSC-Exos was investigated through WB and Hoechst/PI staining. RESULTS The expressions of pro-inflammatory cytokines (IL-1β, IL-6, and TNF-α) were increased after SAH. DPSC-Exos alleviated brain edema and neuroinflammation by inhibiting the expression of FOXO3 and reducing NLRP3 inflammasome activation, leading to improved neurobehavioral functions at 24 h after SAH. In vitro, the expression of the NLRP3 inflammasome components (NLRP3 and caspase1-p20), GSDMD-N, and IL-18 was inhibited in BV2 cells pretreated with DPSC-Exos. Importantly, DPSC-Exos overexpressing miR-197-3p had a more obvious protective effect than those from NC-transfected DPSCs, while those from DPSCs transfected with the miR-197-3p inhibitor had a weaker protective effect. Functional studies indicated that miR-197-3p bound to the 3'-untranslated region of FOXO3, inhibiting its transcription. Furthermore, the overexpression of FOXO3 reversed the protective effects of miR-197-3p. CONCLUSIONS DPSC-Exos inhibited activation of the NLRP3 inflammasome and related cytokine release via the miR-197-3p/FOXO3 pathway, alleviated neuroinflammation, and inhibited microglial pyroptosis. These findings suggest that using DPSC-Exos is a promising therapeutic strategy for SAH.
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Affiliation(s)
- Xin Liang
- Department of Neurosurgery, Affiliated Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- Department of Neurosurgery, Affiliated Beijing Jishuitan Hospital, Capital Medical University, Beijing, China
| | - Yan Miao
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Xin Tong
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- Cerebrovascular Disease Department, Neurological Disease Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jigang Chen
- Department of burn and plastic surgery, Beijing Children's Hospital, Capital Medical University, Beijing, 100045, China
| | - Hongyi Liu
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- School of Biomedical Engineering, Capital Medical University, Beijing, 100069, China
| | - Zilong He
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Aihua Liu
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China.
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, China.
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China.
- China National Clinical Research Centre for Neurological Diseases, Beijing, 100070, China.
| | - Zhiqiang Hu
- Department of Neurosurgery, Affiliated Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China.
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Chen S, Liang B, Xu J. Unveiling heterogeneity in MSCs: exploring marker-based strategies for defining MSC subpopulations. J Transl Med 2024; 22:459. [PMID: 38750573 PMCID: PMC11094970 DOI: 10.1186/s12967-024-05294-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 05/11/2024] [Indexed: 05/19/2024] Open
Abstract
Mesenchymal stem/stromal cells (MSCs) represent a heterogeneous cell population distributed throughout various tissues, demonstrating remarkable adaptability to microenvironmental cues and holding immense promise for disease treatment. However, the inherent diversity within MSCs often leads to variability in therapeutic outcomes, posing challenges for clinical applications. To address this heterogeneity, purification of MSC subpopulations through marker-based isolation has emerged as a promising approach to ensure consistent therapeutic efficacy. In this review, we discussed the reported markers of MSCs, encompassing those developed through candidate marker strategies and high-throughput approaches, with the aim of explore viable strategies for addressing the heterogeneity of MSCs and illuminate prospective research directions in this field.
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Affiliation(s)
- Si Chen
- Shenzhen University Medical School, Shenzhen University, Shenzhen, 518000, People's Republic of China
| | - Bowei Liang
- Shenzhen University Medical School, Shenzhen University, Shenzhen, 518000, People's Republic of China
| | - Jianyong Xu
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-Implantation, Guangdong Engineering Technology Research Center of Reproductive Immunology for Peri-Implantation, Shenzhen Zhongshan Obstetrics & Gynecology Hospital (formerly Shenzhen Zhongshan Urology Hospital), Fuqiang Avenue 1001, Shenzhen, 518060, Guangdong, People's Republic of China.
- Guangdong Engineering Technology Research Center of Reproductive Immunology for Peri-Implantation, Shenzhen, 518000, People's Republic of China.
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Li X, Zhang D, Yu Y, Wang L, Zhao M. Umbilical cord-derived mesenchymal stem cell secretome promotes skin regeneration and rejuvenation: From mechanism to therapeutics. Cell Prolif 2024; 57:e13586. [PMID: 38148579 PMCID: PMC10984109 DOI: 10.1111/cpr.13586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/31/2023] [Accepted: 11/22/2023] [Indexed: 12/28/2023] Open
Abstract
How to effectively repair cutaneous wounds and promote skin rejuvenation has always been a challenging issue for clinical medicine and medical aesthetics. Current conventional medicines exhibit several drawbacks, including limited therapeutic effects, prolonged treatment periods, and high costs. As a novel cell-free therapy, the umbilical cord-derived mesenchymal stem cell (UCMSC) secretome may offer a promising approach for skin regeneration and rejuvenation. The UCMSC secretome is a collection of all proteins secreted by mesenchymal stem cells, including conditioned media, exosomes, and other substances. The UCMSC secretome has numerous abilities to accelerate acute wound healing, including high fibroblast and keratinocyte proliferative activity, pro-angiogenesis, anti-inflammation, anti-fibrosis, and anti-oxidative stress. Its impact on the four stages of wound healing is manifested by inducing the haemostasis phase, inhibiting the inflammation phase, promoting the proliferation phase, and regulating the remodelling phase. Furthermore, it is highly effective in the treatment of chronic wounds, alopecia, aging, and skin homeostasis disturbance. This review focuses on the clinical therapies and application prospects of the UCMSC secretome, encompassing its source, culture, separation, identification, storage, and pretreatment. Additionally, a discussion on the dosage, administration route, efficacy, and biosafety in the clinical situation is presented. This review aims to provide scientific support for the mechanistic investigation and clinical utilisation of the UCMSC secretome in wound healing and skin rejuvenation.
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Affiliation(s)
- Xixian Li
- Department of Plastic SurgeryThe Second Hospital of Dalian Medical UniversityDalianLiaoningChina
- CAS Key Laboratory of Separation Science for Analytical ChemistryDalian Institute of Chemical Physics, Chinese Academy of SciencesDalianLiaoningChina
| | - Dan Zhang
- Department of Plastic SurgeryThe Second Hospital of Dalian Medical UniversityDalianLiaoningChina
| | - Yang Yu
- CAS Key Laboratory of Separation Science for Analytical ChemistryDalian Institute of Chemical Physics, Chinese Academy of SciencesDalianLiaoningChina
| | - Liang Wang
- Research and Teaching Department of Comparative MedicineDalian Medical UniversityDalianLiaoningChina
| | - Muxin Zhao
- Department of Plastic SurgeryThe Second Hospital of Dalian Medical UniversityDalianLiaoningChina
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Li Y, Zhao L, Li S, Ruan D, Xiong L, Tang J, Hu M, Wang Y, Huang W, Li L, Zhao Z. Skin-derived precursor conditioned medium alleviated photoaging via early activation of TGF-β/Smad signaling pathway by thrombospondin1: In vitro and in vivo studies. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 253:112873. [PMID: 38412778 DOI: 10.1016/j.jphotobiol.2024.112873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 02/29/2024]
Abstract
Photoaging is one major exogenous factor of skin aging. Efficacy and safety of current anti-photoaging therapies remained to be improved. Our previous studies indicated that skin-derived precursors (SKPs) alleviated photodamage by early activation of TGF-β/Smad signaling pathway via thrombospondin1 (TSP1). However, the research concerning SKP conditioned medium (SKP-CM) has never been reported. In the current study, we aimed to explore the anti-photoaging effects of SKP-CM both in vitro and in vivo, and to elucidate the possible mechanisms. Mouse SKP-CM (mSKP-CM) collection was optimized by a comparative method. The concentration of protein and growth factors in mSKP-CM was detected using BCA protein assay kit and growth factor protein chip. The anti-photoaging effects of mSKP-CM and its regulation of key factors in the TGF-β/Smad signaling pathway were explored using UVA + UVB photoaged mouse fibroblasts (mFBs) and nude mice dorsal skin. The research revealed that mSKP-CM contained significantly higher-concentration of protein and growth factors than mouse mesenchymal stem cell conditioned medium (mDMSC-CM). mSKP-CM alleviated mFBs photoaging by restoring cell viability and relieving senescence and death. ELISA, qRT-PCR, and western blot results implied the potential mechanisms were associated with the early activation of TGF-β/Smad signaling pathway by TSP1. In vivo experiments demonstrated that compared with the topical intradermal mDMSC-CM injection and retinoic acid cream application, the photodamaged mice dorsal skin intradermally injected with mSKP-CM showed significantly better improvement. Consistent with the in vitro results, both western blot and immunohistochemistry results confirmed that protein expression of TSP1, smad2/3, p-smad2/3, TGF-β1, and collagen I increased, and matrix metalloproteinases decreased. In summary, both in vitro and in vivo experiments demonstrated that mSKP-CM alleviated photoaging through an early activation of TGF-β/Smad signaling pathway via TSP1. SKP-CM may serve as a novel and promising cell-free therapeutical approach for anti-photoaging treatment and regenerative medicine.
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Affiliation(s)
- Yiming Li
- Department of Dermatology, Sichuan Second Hospital of TCM, Chengdu, Sichuan 610041, China; Laboratory of Ethnopharmacology, Tissue-orientated Property of Chinese Medicine Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Lingyun Zhao
- Department of Dermatology and Venerology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Shiyi Li
- Laboratory of Ethnopharmacology, Tissue-orientated Property of Chinese Medicine Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Danhua Ruan
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Lidan Xiong
- Center of Cosmetics Evaluation, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Jie Tang
- Center of Cosmetics Evaluation, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Meng Hu
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yixin Wang
- Department of Dermatology and Venerology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Wen Huang
- Laboratory of Ethnopharmacology, Tissue-orientated Property of Chinese Medicine Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Li Li
- Department of Dermatology and Venerology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China; Center of Cosmetics Evaluation, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Zhiwei Zhao
- Department of Anatomy, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, China
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Qiu B, Yang E, Zheng Y, Zhang H. Association between SPRY1 and TET3 in skin photoaging and natural aging mechanisms. J Cosmet Dermatol 2023. [PMID: 38054565 DOI: 10.1111/jocd.16115] [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: 06/08/2023] [Revised: 11/13/2023] [Accepted: 11/21/2023] [Indexed: 12/07/2023]
Abstract
BACKGROUND SPRY1 is associated with the invasiveness and prognosis of various tumors, and TET3 affects aging by regulating gene expression. AIMS We investigated the roles of SPRY1 and TET3 in natural skin aging, replicative aging, and photoaging, along with the effect of UVA on genome-wide DNA methylation in HaCaT cells. METHODS TET3 and SPRY1 expression were measured in the skin of patients of different age groups, as well as in vitro human skin, HaCaT cell replicative senescence, and HaCaT and HaCaT-siTET3 cell photoaging models. Senescence was verified using β-galactosidase staining, and DNA damage was detected using immunofluorescence staining for γ-H2A.X. 5-Methyl cytosine (5-mC) content in the genome was determined using ELISA. RESULTS SPRY1 expression increased with age, whereas TET3 expression decreased. Similarly, SPRY1 was upregulated and TET3 was downregulated with increasing cell passages. TET3-siRNA upregulated SPRY1 expression in HaCaT cells. UVA irradiation promoted HaCaT cell senescence and induced cellular DNA damage. SPRY1 was upregulated and TET3 was downregulated upon UVA irradiation. Genome-wide 5-mC content increased upon TET3 silencing and UVA irradiation, indicating a surge in overall methylation. CONCLUSIONS SPRY1 and TET3 are natural skin aging-related genes that counteract to regulate replicative aging and UVA-induced photoaging in HaCaT cells. The cell photoaging model may limit experimental bias caused by different exposure times of skin model samples.
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Affiliation(s)
- Bo Qiu
- Department of Burns & Plastic Surgery, First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - E Yang
- Department of Burns & Plastic Surgery, First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yulian Zheng
- Department of Burns & Plastic Surgery, First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hengshu Zhang
- Department of Burns & Plastic Surgery, First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Branco A, Moniz I, Ramalho-Santos J. Mitochondria as biological targets for stem cell and organismal senescence. Eur J Cell Biol 2023; 102:151289. [PMID: 36696809 DOI: 10.1016/j.ejcb.2023.151289] [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: 12/20/2022] [Revised: 01/19/2023] [Accepted: 01/19/2023] [Indexed: 01/22/2023] Open
Abstract
Organismal aging is impacted by the deterioration of tissue turnover mechanisms due, in part, to the decline in stem cell function. This decline can be related to mitochondrial dysfunction and underlying energetic defects that, in concert, help drive biological aging. Thus, mitochondria have been described as a potential interventional target to hinder the loss of stem cell robustness, and subsequently, decrease tissue turnover decline and age-associated pathologies. In this review, we focused our analysis on the most recent literature on mitochondria and stem cell aging and discuss the potential benefits of targeting mitochondria in preventing stem cell dysfunction and thus influencing aging.
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Affiliation(s)
- Ana Branco
- CNC-Centre for Neuroscience and Cell Biology, CIBB-Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Azinhaga de Santa Comba, Polo 3, 3000-548 Coimbra, Portugal
| | - Inês Moniz
- CNC-Centre for Neuroscience and Cell Biology, CIBB-Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Azinhaga de Santa Comba, Polo 3, 3000-548 Coimbra, Portugal; Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Casa Costa Alemão, Polo 2, 3030-789 Coimbra, Portugal
| | - João Ramalho-Santos
- CNC-Centre for Neuroscience and Cell Biology, CIBB-Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Azinhaga de Santa Comba, Polo 3, 3000-548 Coimbra, Portugal; Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal.
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