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Fan R, Zhang Y, Liu R, Wei C, Wang X, Wu X, Yu X, Li Z, Mao R, Hu J, Zhu N, Liu X, Li Y, Xu M. Exogenous Nucleotides Improve the Skin Aging of SAMP8 Mice by Modulating Autophagy through MAPKs and AMPK Pathways. Nutrients 2024; 16:1907. [PMID: 38931262 PMCID: PMC11206724 DOI: 10.3390/nu16121907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 06/07/2024] [Accepted: 06/15/2024] [Indexed: 06/28/2024] Open
Abstract
The skin, serving as the body's primary defense against external elements, plays a crucial role in protecting the body from infections and injuries, as well as maintaining overall homeostasis. Skin aging, a common manifestation of the aging process, involves the gradual deterioration of its normal structure and repair mechanisms. Addressing the issue of skin aging is increasingly imperative. Multiple pieces of evidence indicate the potential anti-aging effects of exogenous nucleotides (NTs) through their ability to inhibit oxidative stress and inflammation. This study aims to investigate whether exogenous NTs can slow down skin aging and elucidate the underlying mechanisms. To achieve this objective, senescence-accelerated mouse prone-8 (SAMP8) mice were utilized and randomly allocated into Aging, NTs-low, NTs-middle, and NTs-high groups, while senescence-accelerated mouse resistant 1 (SAMR1) mice were employed as the control group. After 9 months of NT intervention, dorsal skin samples were collected to analyze the pathology and assess the presence and expression of substances related to the aging process. The findings indicated that a high-dose NT treatment led to a significant increase in the thickness of the epithelium and dermal layers, as well as Hyp content (p < 0.05). Additionally, it was observed that low-dose NT intervention resulted in improved aging, as evidenced by a significant decrease in p16 expression (p < 0.05). Importantly, the administration of high doses of NTs could improve, in some ways, mitochondrial function, which is known to reduce oxidative stress and promote ATP and NAD+ production significantly. These observed effects may be linked to NT-induced autophagy, as evidenced by the decreased expression of p62 and increased expression of LC3BI/II in the intervention groups. Furthermore, NTs were found to upregulate pAMPK and PGC-1α expression while inhibiting the phosphorylation of p38MAPK, JNK, and ERK, suggesting that autophagy may be regulated through the AMPK and MAPK pathways. Therefore, the potential induction of autophagy by NTs may offer benefits in addressing skin aging through the activation of the AMPK pathway and the inhibition of the MAPK pathway.
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Affiliation(s)
- Rui Fan
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Ying Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Rui Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Chan Wei
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Xiujuan Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Xin Wu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Xiaochen Yu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Zhen Li
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Ruixue Mao
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Jiani Hu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Na Zhu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Xinran Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Yong Li
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Meihong Xu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
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Liu Y, Liu Z, Ren Z, Han Q, Chen X, Han J, Qiu G, Sun C. NDUFA9 and its crotonylation modification promote browning of white adipocytes by activating mitochondrial function in mice. Int J Biochem Cell Biol 2024; 171:106583. [PMID: 38657899 DOI: 10.1016/j.biocel.2024.106583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 04/16/2024] [Accepted: 04/16/2024] [Indexed: 04/26/2024]
Abstract
Protein crotonylation plays a role in regulating cellular metabolism, gene expression, and other biological processes. NDUFA9 (NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 9) is closely associated with the activity and function of mitochondrial respiratory chain complex I. Mitochondrial function and respiratory chain are closely related to browning of white adipocytes, it's speculated that NDUFA9 and its crotonylation are associated with browning of white adipocytes. Firstly, the effect of NDUFA9 on white adipose tissue was verified in white fat browning model mice, and it was found that NDUFA9 promoted mitochondrial respiration, thermogenesis, and browning of white adipose tissue. Secondly, in cellular studies, it was discovered that NDUFA9 facilitated browning of white adipocytes by enhancing mitochondrial function, mitochondrial complex I activity, ATP synthesis, and mitochondrial respiration. Again, the level of NDUFA9 crotonylation was increased by treating cells with vorinostat (SAHA)+sodium crotonate (NaCr) and overexpressing NDUFA9, it was found that NDUFA9 crotonylation promoted browning of white adipocytes. Meanwhile, the acetylation level of NDUFA9 was increased by treating cells with SAHA+sodium acetate (NaAc) and overexpressing NDUFA9, the assay revealed that NDUFA9 acetylation inhibited white adipocytes browning. Finally, combined with the competitive relationship between acetylation and crotonylation, it was also demonstrated that NDUFA9 crotonylation promoted browning of white adipocytes. Above results indicate that NDUFA9 and its crotonylation modification promote mitochondrial function, which in turn promotes browning of white adipocytes. This study establishes a theoretical foundation for the management and intervention of obesity, which is crucial in addressing obesity and related medical conditions in the future.
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Affiliation(s)
- Yuexia Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zunhai Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zeyu Ren
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Qiannan Han
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xinhao Chen
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jialu Han
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Guiping Qiu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Chao Sun
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Teng Y, Cui H, Xu D, Tang H, Gu Y, Tang Y, Tao X, Huang Y, Fan Y. Specific Knockdown of the NDUFS4 Gene Reveals Important Roles of Ferroptosis in UVB-induced Photoaging. Inflammation 2024:10.1007/s10753-024-02057-8. [PMID: 38796804 DOI: 10.1007/s10753-024-02057-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 05/10/2024] [Accepted: 05/17/2024] [Indexed: 05/29/2024]
Abstract
Ultraviolet (UV) irradiation significantly contributes to photoaging. Ferroptosis, an iron-dependent cell death mode recently identified, plays a key role in UVB-induced skin photoaging. This study examines the functions and regulatory mechanisms of ferroptosis in this regard. Characterized by increased intracellular iron and reactive oxygen species (ROS), ferroptosis is associated with mitochondrial function and structure. Through RNA sequencing, we identified NADH: ubiquinone oxidoreductase subunit S4 (NDUFS4), a gene implicated in UVB-mediated photoaging, and explored its role in ferroptosis by NDUFS4 knockdown. In vitro, inhibiting NDUFS4 reduced ferroptosis, decreased ROS and matrix metallopeptidase 1 levels, and increased collagen type I alpha 1 chain, glutathione peroxidase 4 (GPX4), ferritin heavy chain 1, and solute carrier family 7 member 11 levels, suggesting a reinforced ferroptosis protective mechanism. Additionally, NDUFS4 regulates ferroptosis via the mitogen-activated protein kinase (MAPK) pathway, with its knockdown reducing p38 and ERK phosphorylation and elevating GPX4 levels, enhancing ferroptosis resistance. Animal experiments supported these findings, demonstrating that Ferrostatin-1, a ferroptosis inhibitor, significantly mitigated UVB-induced skin photoaging and related protein expression. This study uncovers NDUFS4's novel role in regulating ferroptosis and provides new insights into ferroptosis-mediated UVB-induced skin photoaging.
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Affiliation(s)
- Yan Teng
- Center for Plastic & Reconstructive Surgery, Department of Dermatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Hangzhou, 310014, China
| | - Hong Cui
- Center for Plastic & Reconstructive Surgery, Department of Dermatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Hangzhou, 310014, China
| | - Danfeng Xu
- Center for Plastic & Reconstructive Surgery, Department of Dermatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Hangzhou, 310014, China
| | - Hui Tang
- Graduate School of Clinical Medicine, Bengbu Medical College, Bengbu, China
| | - Yu Gu
- Department of Dermatology, the First People's Hospital of Aksu Prefectu, Aksu, XinJiang, China
| | - Yi Tang
- Center for Plastic & Reconstructive Surgery, Department of Dermatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Hangzhou, 310014, China
| | - Xiaohua Tao
- Center for Plastic & Reconstructive Surgery, Department of Dermatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Hangzhou, 310014, China
| | - Youming Huang
- Center for Plastic & Reconstructive Surgery, Department of Dermatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Hangzhou, 310014, China
| | - Yibin Fan
- Center for Plastic & Reconstructive Surgery, Department of Dermatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital of Hangzhou Medical College, Hangzhou, 310014, China.
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Lee H, Ye S, Kim J, Jun SH, Kang NG. Improvement in Facial Wrinkles Using Materials Enhancing PPARGC1B Expression Related to Mitochondrial Function. Curr Issues Mol Biol 2024; 46:5037-5051. [PMID: 38920974 PMCID: PMC11202557 DOI: 10.3390/cimb46060302] [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: 04/11/2024] [Revised: 05/16/2024] [Accepted: 05/17/2024] [Indexed: 06/27/2024] Open
Abstract
Skin aging is an unavoidable natural phenomenon caused by intrinsic and extrinsic factors. In modern society, the pursuit of a wrinkle-free and aesthetically appealing face has gained considerable prominence. Numerous studies have aimed at mitigating the appearance of facial wrinkles. Antiaging research focused on regulating the function of mitochondria, the main reactive oxygen species-generating organelles, has been extensively conducted. In this study, we investigated the correlation between facial wrinkles and the expression of PPARGC1B, considering the association of this gene with mitochondrial function, to identify its potential as a target for exploring antiaging cosmetic materials. We elucidated the role of PPARGC1B in the skin and identified five bioactive materials that modulated its expression. The effectiveness of these materials was verified through in vitro experiments on human dermal fibroblasts. We prepared cosmetic formulations incorporating the five materials and confirmed their ability to enhance dermal collagen in three-dimensional skin models and reduce facial wrinkles under the eyes and nasolabial fold areas in human subjects. The study findings have significant implications for developing novel antiaging cosmetic formulations by reinforcing mitochondrial functions.
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Affiliation(s)
| | | | | | - Seung-Hyun Jun
- LG Household & Health Care (LG H&H) R&D Center, Seoul 07795, Republic of Korea; (H.L.); (S.Y.); (J.K.)
| | - Nae-Gyu Kang
- LG Household & Health Care (LG H&H) R&D Center, Seoul 07795, Republic of Korea; (H.L.); (S.Y.); (J.K.)
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Zheng H, Liang X, Liu B, Huang X, Shen Y, Lin F, Chen J, Gao X, He H, Li W, Hu B, Li X, Zhang Y. Exosomal miR-9-5p derived from iPSC-MSCs ameliorates doxorubicin-induced cardiomyopathy by inhibiting cardiomyocyte senescence. J Nanobiotechnology 2024; 22:195. [PMID: 38643173 PMCID: PMC11032595 DOI: 10.1186/s12951-024-02421-8] [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: 11/06/2023] [Accepted: 03/18/2024] [Indexed: 04/22/2024] Open
Abstract
Doxorubicin (DOX) is a chemotherapeutic agent widely used for tumor treatment. Nonetheless its clinical application is heavily limited by its cardiotoxicity. There is accumulated evidence that transplantation of mesenchymal stem cell-derived exosomes (MSC-EXOs) can protect against Dox-induced cardiomyopathy (DIC). This study aimed to examine the cardioprotective effects of EXOs isolated from human induced pluripotent stem cell-derived MSCs (iPSC-MSCs) against DIC and explore the potential mechanisms. EXOs were isolated from the cultural supernatant of human BM-MSCs (BM-MSC-EXOs) and iPSC-MSCs (iPSC-MSC-EXOs) by ultracentrifugation. A mouse model of DIC was induced by intraperitoneal injection of Dox followed by tail vein injection of PBS, BM-MSC-EXOs, or iPSC-MSC-EXOs. Cardiac function, cardiomyocyte senescence and mitochondrial dynamics in each group were assessed. In vitro, neonatal mouse cardiomyocytes (NMCMs) were subjected to Dox and treated with BM-MSC-EXOs or iPSC-MSC-EXOs. The mitochondrial morphology and cellular senescence of NMCMs were examined by Mitotracker staining and senescence-associated-β-galactosidase assay, respectively. Compared with BM-MSC-EXOs, mice treated with iPSC-MSC-EXOs displayed improved cardiac function and decreased cardiomyocyte mitochondrial fragmentation and senescence. In vitro, iPSC-MSC-EXOs were superior to BM-MSC-EXOs in attenuation of cardiomyocyte mitochondrial fragmentation and senescence caused by DOX. MicroRNA sequencing revealed a higher level of miR-9-5p in iPSC-MSC-EXOs than BM-MSC-EXOs. Mechanistically, iPSC-MSC-EXOs transported miR-9-5p into DOX-treated cardiomyocytes, thereby suppressing cardiomyocyte mitochondrial fragmentation and senescence via regulation of the VPO1/ERK signal pathway. These protective effects and cardioprotection against DIC were largely reversed by knockdown of miR-9-5p in iPSC-MSC-EXOs. Our results showed that miR-9-5p transferred by iPSC-MSC-EXOs protected against DIC by alleviating cardiomyocyte senescence via inhibition of the VPO1/ERK pathway. This study offers new insight into the application of iPSC-MSC-EXOs as a novel therapeutic strategy for DIC treatment.
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Affiliation(s)
- Huifeng Zheng
- Department of Emergency Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Department of Intensive Care Unit, Chongqing General Hospital, Chongqing, China
| | - Xiaoting Liang
- Translational Medical Center for Stem Cell Therapy and Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
- Shanghai Heart Failure Research Center, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Baojuan Liu
- Department of Emergency Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Xinran Huang
- Department of Emergency Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Ying Shen
- Department of Emergency Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Fang Lin
- Shanghai Heart Failure Research Center, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jiaqi Chen
- Department of Emergency Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Xiaoyan Gao
- Department of Emergency Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Haiwei He
- Department of Emergency Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Weifeng Li
- Department of Emergency Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Bei Hu
- Department of Emergency Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China.
| | - Xin Li
- Department of Emergency Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China.
| | - Yuelin Zhang
- Department of Emergency Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China.
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Lai S, Wu T, Shi C, Wang X, Liu P, Wang L, Yu H. Triple-layered core-shell fiber dressings with enduring platelet conservation and sustained growth factor release abilities for chronic wound healing. Regen Biomater 2024; 11:rbae034. [PMID: 38601330 PMCID: PMC11004556 DOI: 10.1093/rb/rbae034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/08/2024] [Accepted: 03/12/2024] [Indexed: 04/12/2024] Open
Abstract
Platelet-rich plasma (PRP) is one of the most popular biomaterials in regenerative medicine. However, the difficulties encountered in its preservation, and the requirement for on-demand preparation severely limit its application. In addition, its rapid degradation in the wound microenvironment makes the sustained release of growth factors impossible and finally reduces the therapeutic effect on chronic wounds. Here, a multifunctional dressing based on triple-layered core-shell fibers for loading and enduring preservation of PRP was developed using a one-step coaxial bioprinting technique combined with freeze-drying. The platelets were effectively dispersed and immobilized in the core layer of the fiber, leading to a sustained release of growth factors from the PRP. The rate of release can be controlled by adjusting the triple-layered core-shell structure. Simultaneously, the triple-layered core-shell structure can reduce the deactivation of PRP during freezing and storage. The experimental findings suggest that PRP exhibits sustained activity, facilitating the process of wound healing even after a storage period of 180 days. Furthermore, the protective mechanism of PRP by the triple-layered core-shell fiber was investigated, and the conditions for freeze-drying and storage were optimized, further enhancing the long-term storability of PRP. As a result, the multifunctional core-shell fiber dressings developed in this study offer a novel approach for sustained growth factor release and the enduring preservation of active PRP.
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Affiliation(s)
- Simin Lai
- Guangdong–Hong Kong Joint Laboratory for New Textile Materials, School of Textile Science and Engineering, Wuyi University, Jiangmen 529020, China
| | - Tingbin Wu
- Guangdong–Hong Kong Joint Laboratory for New Textile Materials, School of Textile Science and Engineering, Wuyi University, Jiangmen 529020, China
| | - Chenxi Shi
- Guangdong–Hong Kong Joint Laboratory for New Textile Materials, School of Textile Science and Engineering, Wuyi University, Jiangmen 529020, China
| | | | - Pengbi Liu
- Guangdong–Hong Kong Joint Laboratory for New Textile Materials, School of Textile Science and Engineering, Wuyi University, Jiangmen 529020, China
| | - Lihuan Wang
- Guangdong–Hong Kong Joint Laboratory for New Textile Materials, School of Textile Science and Engineering, Wuyi University, Jiangmen 529020, China
| | - Hui Yu
- Guangdong–Hong Kong Joint Laboratory for New Textile Materials, School of Textile Science and Engineering, Wuyi University, Jiangmen 529020, China
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Zaczek A, Lewiński A, Karbownik-Lewińska M, Lehoczki A, Gesing A. Impact of visceral adipose tissue on longevity and metabolic health: a comparative study of gene expression in perirenal and epididymal fat of Ames dwarf mice. GeroScience 2024:10.1007/s11357-024-01131-1. [PMID: 38517641 DOI: 10.1007/s11357-024-01131-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Accepted: 03/09/2024] [Indexed: 03/24/2024] Open
Abstract
Emerging research underscores the pivotal role of adipose tissue in regulating systemic aging processes, particularly when viewed through the lens of the endocrine hypotheses of aging. This study delves into the unique adipose characteristics in an important animal model of aging - the long-lived Ames dwarf (df/df) mice. Characterized by a Prop1df gene mutation, these mice exhibit a deficiency in growth hormone (GH), prolactin, and TSH, alongside extremely low circulating IGF-1 levels. Intriguingly, while surgical removal of visceral fat (VFR) enhances insulin sensitivity in normal mice, it paradoxically increases insulin resistance in Ames dwarfs. This suggests an altered profile of factors produced in visceral fat in the absence of GH, indicating a unique interplay between adipose tissue function and hormonal influences in these models. Our aim was to analyze the gene expression related to lipid and glucose metabolism, insulin pathways, inflammation, thermoregulation, mitochondrial biogenesis, and epigenetic regulation in the visceral (perirenal and epididymal) adipose tissue of Ames dwarf and normal mice. Our findings reveal an upregulation in the expression of key genes such as Lpl, Adrβ3, Rstn, Foxo1, Foxo3a, Irs1, Cfd, Aldh2, Il6, Tnfα, Pgc1α, Ucp2, and Ezh2 in perirenal and Akt1, Foxo3a, PI3k, Ir, Acly, Il6, Ring1a, and Ring 1b in epididymal fat in df/df mice. These results suggest that the longevity phenotype in Ames dwarfs, which is determined by peripubertal GH/IGF-1 levels, may also involve epigenetic reprogramming of adipose tissue influenced by hormonal changes. The increased expression of genes involved in metabolic regulation, tumor suppression, mitochondrial biogenesis, and insulin pathways in Ames dwarf mice highlights potentially beneficial aspects of this model, opening new avenues for understanding the molecular underpinnings of longevity and aging.
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Affiliation(s)
- Agnieszka Zaczek
- Department of Endocrinology of Ageing, Medical University of Lodz, Lodz, Poland
| | - Andrzej Lewiński
- Department of Paediatric Endocrinology, Medical University of Lodz, Lodz, Poland
- Department of Endocrinology and Metabolic Diseases, Polish Mother's Memorial Hospital - Research Institute, Lodz, Poland
| | - Małgorzata Karbownik-Lewińska
- Department of Endocrinology and Metabolic Diseases, Polish Mother's Memorial Hospital - Research Institute, Lodz, Poland
| | - Andrea Lehoczki
- Department of Public Health, Semmelweis University, Budapest, Hungary
- Doctoral School, Health Sciences Program, Semmelweis University, Budapest, Hungary
- Department of Haematology and Stem Cell Transplantation, National Institute for Haematology and Infectious Diseases, South Pest Central Hospital, 1097, Budapest, Hungary
| | - Adam Gesing
- Department of Endocrinology of Ageing, Medical University of Lodz, Lodz, Poland.
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Wei Y, Han Z, Mao X. Injectable Living Probiotic Dressing Built by Droplet-Based Microfluidics and Photo-Cross-Linking to Prevent Pathogenic Infection and Promote Wound Repair. Adv Healthc Mater 2024; 13:e2302423. [PMID: 37843361 DOI: 10.1002/adhm.202302423] [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: 07/28/2023] [Revised: 10/01/2023] [Indexed: 10/17/2023]
Abstract
The treatment of infected wounds faces great challenges due to the emergence of antibiotic resistance and the lack of persistence in drug release. Here, a living probiotic dressing is constructed by integrating droplet-shearing and photo-cross-linking. Saccharomyces boulardii (S. boulardii), the only probiotic used clinically, is encapsulated and attached to a wound under light irradiation. A double-layer hydrogel provides a protective barrier for cell growth and proliferation while preventing the escape of S. boulardii. The living probiotic dressing shows superior biosafety with fibroblast cells. Strikingly, in vitro and in vivo experiments indicate that the living probiotic dressing not only inhibits bacterial survival and colonization, but also alleviates inflammation and accelerates wound closure. More significantly, the living probiotic dressing promotes collagen deposition and neovascularization, which accelerates wound healing. This work can provide new ideas for clinical wound treatment and widen the application of probiotics in tissue engineering.
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Affiliation(s)
- Yunyun Wei
- School of Radiology, Shandong First Medical University and Shandong Academy of Medical Sciences, Tai'an, 271000, China
- Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, China
| | - Ziqiang Han
- School of Laboratory Animal & Shandong Laboratory Animal Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250000, China
| | - Xiaolong Mao
- Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, China
- School of Laboratory Animal & Shandong Laboratory Animal Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250000, China
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Lei X, Xu Z, Huang L, Huang Y, Tu S, Xu L, Liu D. The potential influence of melatonin on mitochondrial quality control: a review. Front Pharmacol 2024; 14:1332567. [PMID: 38273825 PMCID: PMC10808166 DOI: 10.3389/fphar.2023.1332567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 12/31/2023] [Indexed: 01/27/2024] Open
Abstract
Mitochondria are critical for cellular energetic metabolism, intracellular signaling orchestration and programmed death regulation. Therefore, mitochondrial dysfunction is associated with various pathogeneses. The maintenance of mitochondrial homeostasis and functional recovery after injury are coordinated by mitochondrial biogenesis, dynamics and autophagy, which are collectively referred to as mitochondrial quality control. There is increasing evidence that mitochondria are important targets for melatonin to exert protective effects under pathological conditions. Melatonin, an evolutionarily conserved tryptophan metabolite, can be synthesized, transported and metabolized in mitochondria. In this review, we summarize the important role of melatonin in the damaged mitochondria elimination and mitochondrial energy supply recovery by regulating mitochondrial quality control, which may provide new strategies for clinical treatment of mitochondria-related diseases.
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Affiliation(s)
- Xudan Lei
- Radiation Oncology Key Laboratory of Sichuan Province, Department of Experimental Research, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Center, Sichuan Cancer Hospital and Institute, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Zhenni Xu
- Radiation Oncology Key Laboratory of Sichuan Province, Department of Experimental Research, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Center, Sichuan Cancer Hospital and Institute, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Lingxiao Huang
- Radiation Oncology Key Laboratory of Sichuan Province, Department of Experimental Research, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Center, Sichuan Cancer Hospital and Institute, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Yujun Huang
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Siyu Tu
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lu Xu
- Radiation Oncology Key Laboratory of Sichuan Province, Department of Experimental Research, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Center, Sichuan Cancer Hospital and Institute, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Dengqun Liu
- Radiation Oncology Key Laboratory of Sichuan Province, Department of Experimental Research, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Center, Sichuan Cancer Hospital and Institute, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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10
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Lin CY, Wu CY, Wang CC, Lee CH. Exposure to phenols reduces melanogenesis in B16F10 cells and zebrafish. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 266:106806. [PMID: 38134820 DOI: 10.1016/j.aquatox.2023.106806] [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: 10/10/2023] [Revised: 12/04/2023] [Accepted: 12/18/2023] [Indexed: 12/24/2023]
Abstract
Phenols, ubiquitous environmental contaminants found in water, soil, and air, pose risks to organisms even at minimal concentrations, and many are classified as hazardous pollutants. Skin pigmentation is a natural shield against ultraviolet-induced DNA damage and oxidative stress, pivotal in reducing skin cancer incidences. Studies on B16F10 melanoma cells and zebrafish offer valuable insights into potential therapeutic avenues for melanoma in the context of phenol exposure. Upon phenol treatment, there was a marked decrease in melanin content and melanogenesis-associated protein expression, such as tyrosinase and the microphthalmia-associated transcription factor (MITF) in these melanoma cells. Additionally, phenols led to diminished p38 phosphorylation, amplified extracellular signal-regulated kinase (ERK) phosphorylation, and curtailed melanin expression in zebrafish. These observations underscore the detrimental impact of phenols on melanogenesis and propose a mechanism of action centered on the ERK/p38 signaling pathway. Consequently, our data spotlight the adverse effects of phenols on melanogenesis."
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Affiliation(s)
- Chung-Yu Lin
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Chang-Yi Wu
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Chia C Wang
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Aerosol Science Research Center, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Che-Hsin Lee
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Aerosol Science Research Center, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40433, Taiwan; International Ph.D. Program for Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
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11
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Martic I, Papaccio F, Bellei B, Cavinato M. Mitochondrial dynamics and metabolism across skin cells: implications for skin homeostasis and aging. Front Physiol 2023; 14:1284410. [PMID: 38046945 PMCID: PMC10693346 DOI: 10.3389/fphys.2023.1284410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 10/23/2023] [Indexed: 12/05/2023] Open
Abstract
Aging of human skin is a complex process leading to a decline in homeostasis and regenerative potential of this tissue. Mitochondria are important cell organelles that have a crucial role in several cellular mechanisms such as energy production and free radical maintenance. However, mitochondrial metabolism as well as processes of mitochondrial dynamics, biogenesis, and degradation varies considerably among the different types of cells that populate the skin. Disturbed mitochondrial function is known to promote aging and inflammation of the skin, leading to impairment of physiological skin function and the onset of skin pathologies. In this review, we discuss the essential role of mitochondria in different skin cell types and how impairment of mitochondrial morphology, physiology, and metabolism in each of these cellular compartments of the skin contributes to the process of skin aging.
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Affiliation(s)
- Ines Martic
- Institute for Biochemical Aging Research, University of Innsbruck, Innsbruck, Austria
- Center for Molecular Biosciences Innsbruck (CMBI), Innsbruck, Austria
| | - Federica Papaccio
- Laboratory of Cutaneous Physiopathology and Integrated Center for Metabolomics Research, San Gallicano Dermatological Institute, Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Barbara Bellei
- Laboratory of Cutaneous Physiopathology and Integrated Center for Metabolomics Research, San Gallicano Dermatological Institute, Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Maria Cavinato
- Institute for Biochemical Aging Research, University of Innsbruck, Innsbruck, Austria
- Center for Molecular Biosciences Innsbruck (CMBI), Innsbruck, Austria
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12
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Watanabe T, Tahara K, Hirano E. Evaluating the Impact of a Cream Containing Horse Placental Extract on Eye Corner Wrinkles in Healthy Women: Single-Blind Comparative Study. JMIR DERMATOLOGY 2023; 6:e51070. [PMID: 37966883 PMCID: PMC10687675 DOI: 10.2196/51070] [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: 07/20/2023] [Revised: 09/22/2023] [Accepted: 10/17/2023] [Indexed: 11/16/2023] Open
Abstract
BACKGROUND Placental extract has been mostly used in skin care for cosmetic purposes. However, the use of various placental extracts has been limited due to the lack of established and effective application methods. OBJECTIVE In this study, we investigated the antiwrinkle effect of a cream formulation-LNC wrinkle eye cream (LNC-EC)-containing horse placental extract as the main ingredient. METHODS A total of 24 healthy women, aged 37-54 years, with wrinkle grades 1-3, were treated with LNC-EC for 2 weeks. The cream was applied on one-half of the participants' faces, and the results were compared with the untreated half of the face. RESULTS Visual inspection, using the wrinkle grade standard, showed that the area treated with LNC-EC had a significantly lower wrinkle grade than the untreated area when comparing before and after the application of LNC-EC. In addition, replica analysis showed a significant reduction in both the maximum wrinkle width and the number of wrinkles in the LNC-EC-treated area in comparison to the untreated area before and after the application. These results suggest that LNC-EC has an antiwrinkle effect on the corners of the eyes based on parameters like the maximum wrinkle width and the number of wrinkles. CONCLUSIONS LNC-EC, with horse placental extract as its main ingredient, was shown to be effective in improving wrinkles at the eye corners, presumably due to a reduction in the maximum wrinkle width and the number of wrinkles. Interpretation of the results is limited because this study was conducted only in the intervention group. A randomized controlled trial with a placebo control group is necessary to verify the antiwrinkle effects of horse placental extract.
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Affiliation(s)
- Tsuyuko Watanabe
- Medical Affairs Department, Japan Bio Products Co, Ltd, Tokyo, Japan
| | - Kentarou Tahara
- Medical Affairs Department, Japan Bio Products Co, Ltd, Tokyo, Japan
| | - Eiichi Hirano
- Medical Affairs Department, Japan Bio Products Co, Ltd, Tokyo, Japan
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13
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Jia D, Tian Z, Wang R. Exercise mitigates age-related metabolic diseases by improving mitochondrial dysfunction. Ageing Res Rev 2023; 91:102087. [PMID: 37832607 DOI: 10.1016/j.arr.2023.102087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/30/2023] [Accepted: 10/09/2023] [Indexed: 10/15/2023]
Abstract
The benefits of regular physical activity are related to delaying and reversing the onset of ageing and age-related disorders, including cardiomyopathy, neurodegenerative diseases, cancer, obesity, diabetes, and fatty liver diseases. However, the molecular mechanisms of the benefits of exercise or physical activity on ageing and age-related disorders remain poorly understood. Mitochondrial dysfunction is implicated in the pathogenesis of ageing and age-related metabolic diseases. Mitochondrial health is an important mediator of cellular function. Therefore, exercise alleviates metabolic diseases in individuals with advancing ageing and age-related diseases by the remarkable promotion of mitochondrial biogenesis and function. Exerkines are identified as signaling moieties released in response to exercise. Exerkines released by exercise have potential roles in improving mitochondrial dysfunction in response to age-related disorders. This review comprehensive summarizes the benefits of exercise in metabolic diseases, linking mitochondrial dysfunction to the onset of age-related diseases. Using relevant examples utilizing this approach, the possibility of designing therapeutic interventions based on these molecular mechanisms is addressed.
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Affiliation(s)
- Dandan Jia
- School of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China.
| | - Zhenjun Tian
- Institute of Sports and Exercise Biology, Shaanxi Normal University, Xi'an 710119, China
| | - Ru Wang
- School of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China.
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14
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Liu M, Lu F, Feng J. Therapeutic potential of adipose tissue derivatives in skin photoaging. Regen Med 2023; 18:869-883. [PMID: 37743749 DOI: 10.2217/rme-2023-0098] [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] [Indexed: 09/26/2023] Open
Abstract
Photoaging, the primary cause of exogenous skin aging and predominantly caused by ultraviolet radiation, is an essential type of skin aging characterized by chronic skin inflammation. Recent studies have shown that oxidative stress, inflammation, skin barrier homeostasis, collagen denaturation and pigmentation are the main contributors to it. As a composite tissue rich in matrix and vascular components, adipose tissue derivatives have been recently gaining attention as potential therapeutic agents for various human diseases with fat-processing technology upgrades. This review analyzes both 'minimally treated' and 'nonminimally treated' fat derivatives to give an overview of the preclinical and clinical relevance of adipose tissue derivatives for antiphotoaging application, highlighting their good clinical prospects as well as discussing their safety and potential risks.
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Affiliation(s)
- Meiqi Liu
- Department of Plastic & Cosmetic Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, Guangdong 510515, PR China
| | - Feng Lu
- Department of Plastic & Cosmetic Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, Guangdong 510515, PR China
| | - Jingwei Feng
- Department of Plastic & Cosmetic Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, Guangdong 510515, PR China
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15
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Chu C, Wang X, Yang C, Chen F, Shi L, Xu W, Wang K, Liu B, Wang C, Sun D, Ding W. Neutrophil extracellular traps drive intestinal microvascular endothelial ferroptosis by impairing Fundc1-dependent mitophagy. Redox Biol 2023; 67:102906. [PMID: 37812880 PMCID: PMC10579540 DOI: 10.1016/j.redox.2023.102906] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 09/19/2023] [Accepted: 09/25/2023] [Indexed: 10/11/2023] Open
Abstract
Microvascular endothelial damage caused by intestinal ischemia‒reperfusion (II/R) is a primary catalyst for microcirculation dysfunction and enterogenous infection. Previous studies have mainly focused on how neutrophil extracellular traps (NETs) and ferroptosis cause intestinal epithelial injury, and little attention has been given to how NETs, mainly from circulatory neutrophils, affect intestinal endothelial cells during II/R. This study aimed to unravel the mechanisms through which NETs cause intestinal microvascular dysfunction. We first detected heightened local NET infiltration around the intestinal microvasculature, accompanied by increased endothelial cell ferroptosis, resulting in microcirculation dysfunction in both human and animal II/R models. However, the administration of the ferroptosis inhibitor ferrostatin-1 or the inhibition of NETs via neutrophil-specific peptidylarginine deiminase 4 (Pad4) deficiency led to positive outcomes, with reduced intestinal endothelial ferroptosis and microvascular function recovery. Moreover, RNA-seq analysis revealed a significant enrichment of mitophagy- and ferroptosis-related signaling pathways in HUVECs incubated with NETs. Mechanistically, elevated NET formation induced Fundc1 phosphorylation at Tyr18 in intestinal endothelial cells, which led to mitophagy inhibition, mitochondrial quality control imbalance, and excessive mitochondrial ROS generation and lipid peroxidation, resulting in endothelial ferroptosis and microvascular dysfunction. Nevertheless, using the mitophagy activator urolithin A or AAV-Fundc1 transfection could reverse this process and ameliorate microvascular damage. We first demonstrate that increased NETosis could result in intestinal microcirculatory dysfunction and conclude that suppressed NET formation can mitigate intestinal endothelial ferroptosis by improving Fundc1-dependent mitophagy. Targeting NETs could be a promising approach for treating II/R-induced intestinal microcirculatory dysfunction.
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Affiliation(s)
- Chengnan Chu
- Division of Trauma and Acute Care Surgery, Department of Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu Province, China
| | - Xinyu Wang
- Division of Trauma and Acute Care Surgery, Department of Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu Province, China
| | - Chao Yang
- Division of Trauma and Acute Care Surgery, Department of Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu Province, China
| | - Fang Chen
- School of Medicine, Southeast University, Nanjing, 210002, Jiangsu Province, China
| | - Lin Shi
- Institute of Chemicobiology and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei Street, Nanjing, 210094, Jiangsu Province, China
| | - Weiqi Xu
- Division of Trauma and Acute Care Surgery, Department of Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu Province, China
| | - Kai Wang
- Division of Trauma and Acute Care Surgery, Department of Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu Province, China
| | - Baochen Liu
- Division of Trauma and Acute Care Surgery, Department of Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu Province, China
| | - Chenyang Wang
- Key Laboratory of Intestinal Injury, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, Jiangsu, PR China
| | - Dongping Sun
- Institute of Chemicobiology and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei Street, Nanjing, 210094, Jiangsu Province, China
| | - Weiwei Ding
- Division of Trauma and Acute Care Surgery, Department of Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu Province, China.
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16
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Shang R, Miao J. Mechanisms and effects of metformin on skeletal muscle disorders. Front Neurol 2023; 14:1275266. [PMID: 37928155 PMCID: PMC10621799 DOI: 10.3389/fneur.2023.1275266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 10/09/2023] [Indexed: 11/07/2023] Open
Abstract
Skeletal muscle disorders are mostly genetic and include several rare diseases. With disease progression, muscle fibrosis and adiposis occur, resulting in limited mobility. The long course of these diseases combined with limited treatment options affect patients both psychologically and economically, hence the development of novel treatments for neuromuscular diseases is crucial to obtain a better quality of life. As a widely used hypoglycemic drug in clinical practice, metformin not only has anti-inflammatory, autophagy-regulating, and mitochondrial biogenesis-regulating effects, but it has also been reported to improve the symptoms of neuromuscular diseases, delay hypokinesia, and regulate skeletal muscle mass. However, metformin's specific mechanism of action in neuromuscular diseases requires further elucidation. This review summarizes the evidence showing that metformin can regulate inflammation, autophagy, and mitochondrial biogenesis through different pathways, and further explores its mechanism of action in Duchenne muscular dystrophy, statin-associated muscle disorders, and age-related sarcopenia. This review clarifies the directions of future research on therapy for neuromuscular diseases.
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Affiliation(s)
| | - Jing Miao
- Department of Neurology, The First Hospital of Jilin University, Changchun, China
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