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  1. Book ; Online: The Fibroblast Growth Factor Signaling Pathway in Metabolic Regulation, Development, Disease and Repair After Injury

    Wang, Zhouguang / Li, Xiaokun / Lin, Li / Bellusci, Saverio / Zhang, Jin-San

    2020  

    Keywords Science: general issues ; Pharmacology ; FGF (fibroblast growth factor) ; regeneration ; development ; metabolic regulation ; ischema-reperfusion injury
    Size 1 electronic resource (203 pages)
    Publisher Frontiers Media SA
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021230888
    ISBN 9782889661282 ; 2889661288
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Article ; Online: Capacitive-Coupling-Responsive Hydrogel Scaffolds Offering Wireless In Situ Electrical Stimulation Promotes Nerve Regeneration.

    Wu, Ping / Xu, Chao / Zou, Xianghui / Yang, Kun / Xu, Yanping / Li, Xueyao / Li, Xiaokun / Wang, Zhouguang / Luo, Zhiqiang

    Advanced materials (Deerfield Beach, Fla.)

    2024  Volume 36, Issue 14, Page(s) e2310483

    Abstract: Electrical stimulation (ES) has shown beneficial effects in repairing injured tissues. However, current ES techniques that use tissue-traversing leads and bulky external power suppliers have significant limitations in translational medicine. Hence, ... ...

    Abstract Electrical stimulation (ES) has shown beneficial effects in repairing injured tissues. However, current ES techniques that use tissue-traversing leads and bulky external power suppliers have significant limitations in translational medicine. Hence, exploring noninvasive in vivo ES to provide controllable electrical cues in tissue engineering is an imminent necessity. Herein, a conductive hydrogel with in situ electrical generation capability as a biodegradable regeneration scaffold and wireless ES platform for spinal cord injury (SCI) repair is demonstrated. When a soft insulated metal plate is placed on top of the injury site as a wireless power transmitter, the conductive hydrogel implanted at the injury site can serve as a wireless power receiver, and the capacitive coupling between the receiver and transmitter can generate an alternating current in the hydrogel scaffold owing to electrostatic induction effect. In a complete transection model of SCI rats, the implanted conductive hydrogels with capacitive-coupling in situ ES enhance functional recovery and neural tissue repair by promoting remyelination, accelerating axon regeneration, and facilitating endogenous neural stem cell differentiation. This facile wireless-powered electroactive-hydrogel strategy thus offers on-demand in vivo ES with an adjustable timeline, duration, and strength and holds great promise in translational medicine.
    MeSH term(s) Rats ; Animals ; Nerve Regeneration ; Axons ; Hydrogels/pharmacology ; Spinal Cord Injuries/therapy ; Electric Stimulation ; Tissue Scaffolds
    Chemical Substances Hydrogels
    Language English
    Publishing date 2024-01-14
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1474949-X
    ISSN 1521-4095 ; 0935-9648
    ISSN (online) 1521-4095
    ISSN 0935-9648
    DOI 10.1002/adma.202310483
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: GnRH pulse frequency and irregularity play a role in male aging.

    Wang, Zhouguang / Wu, Wenhe / Kim, Min Soo / Cai, Dongsheng

    Nature aging

    2021  Volume 1, Issue 10, Page(s) 904–918

    Abstract: Gonadotropin-releasing hormone (GnRH) has a role in hypothalamic control of aging, but the underlying patterns and relationship with downstream reproductive hormones are still unclear. Here we report that hypothalamic GnRH pulse frequency and ... ...

    Abstract Gonadotropin-releasing hormone (GnRH) has a role in hypothalamic control of aging, but the underlying patterns and relationship with downstream reproductive hormones are still unclear. Here we report that hypothalamic GnRH pulse frequency and irregularity increase before GnRH pulse amplitude slowly decreases during aging. GnRH is inhibited by nuclear factor (NF)-κB, and GnRH pulses were controlled by oscillations in the transcriptional activity of NF-κB. Exposure to testosterone under pro-inflammatory conditions stimulated both NF-κB oscillations and GnRH pulses. While castration of middle-aged mice induced short-term anti-aging effects, preventing elevation of luteinizing hormone (LH) levels after castration led to long-term anti-aging effects and lifespan extension, indicating that high-frequency GnRH pulses and high-magnitude LH levels coordinately mediate aging. Reprogramming the endogenous GnRH pulses of middle-aged male mice via an optogenetic approach revealed that increasing GnRH pulses frequency causes LH excess and aging acceleration, while lowering the frequency of and stabilizing GnRH pulses can slow down aging. In conclusion, GnRH pulses are important for aging in male mice.
    MeSH term(s) Male ; Mice ; Animals ; Gonadotropin-Releasing Hormone/pharmacology ; Luteinizing Hormone ; Follicle Stimulating Hormone ; NF-kappa B ; Aging ; Orchiectomy
    Chemical Substances Gonadotropin-Releasing Hormone (33515-09-2) ; Luteinizing Hormone (9002-67-9) ; Follicle Stimulating Hormone (9002-68-0) ; NF-kappa B
    Language English
    Publishing date 2021-10-07
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ISSN 2662-8465
    ISSN (online) 2662-8465
    DOI 10.1038/s43587-021-00116-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Author Correction: GnRH pulse frequency and irregularity play a role in male aging.

    Wang, Zhouguang / Wu, Wenhe / Kim, Min Soo / Cai, Dongsheng

    Nature aging

    2021  Volume 1, Issue 11, Page(s) 1068

    Language English
    Publishing date 2021-10-11
    Publishing country United States
    Document type Published Erratum
    ISSN 2662-8465
    ISSN (online) 2662-8465
    DOI 10.1038/s43587-021-00137-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: In Situ Nanofiber Patch Boosts Postoperative Hepatocellular Carcinoma Immune Activation by Trimodal Combination Therapy.

    Zhao, Yanan / Liu, Yiming / Liu, Zaoqu / Ren, Kewei / Jiao, Dechao / Ren, Jianzhuang / Wu, Ping / Li, Xiaokun / Wang, Zhouguang / Han, Xinwei

    ACS nano

    2023  Volume 18, Issue 1, Page(s) 245–263

    Abstract: Poor clinical efficacy associated with postoperative hepatocellular carcinoma (HCC) often results from recurrence and metastasis. Hence, research has focused on establishing an effective multimodal therapy. However, complex combinations of active ... ...

    Abstract Poor clinical efficacy associated with postoperative hepatocellular carcinoma (HCC) often results from recurrence and metastasis. Hence, research has focused on establishing an effective multimodal therapy. However, complex combinations of active ingredients require multiple functions in therapeutic systems. Herein, a portable nanofiber patch composing germanium phosphorus (GeP) and anlotinib (AL) was designed to form a versatile platform for molecularly targeted photothermal-immune checkpoint blockade (ICB) trimodal combination therapy. The patches possess hydrophilic, satisfactory mechanical, and excellent photothermal conversion properties. Moreover, they achieve a penetrating and sustained drug release. The near-infrared light-assisted GeP-induced temperature increase regulates AL release, downregulating the expression of vascular-related factor receptors, triggering immunogenic cell death of tumor cells, and inducing dendritic cell maturation. Simultaneously, ICB therapy (programmed cell death ligand 1, PD-L1) was introduced to improve treatment outcomes. Notably, this trimodal combination therapy significantly inhibits vascular hypergrowth, enhances effector T-cell infiltration, and sensitizes the PD-L1 antibody response, boosting immunotherapy to suppress residual HCC recurrence and metastasis. Further validation of the genome sequencing results revealed cell pathways related primarily to regulatory immune effects. This study demonstrates the use of an effective and practical nanofiber patch to improve multimodal therapy of postoperative HCC, with high clinical translation value.
    MeSH term(s) Humans ; Carcinoma, Hepatocellular/drug therapy ; Liver Neoplasms/drug therapy ; B7-H1 Antigen ; Nanofibers/therapeutic use ; Combined Modality Therapy ; Immunotherapy/methods ; Tumor Microenvironment
    Chemical Substances B7-H1 Antigen
    Language English
    Publishing date 2023-12-20
    Publishing country United States
    Document type Journal Article
    ISSN 1936-086X
    ISSN (online) 1936-086X
    DOI 10.1021/acsnano.3c05829
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Multifunctional Biodegradable Conductive Hydrogel Regulating Microenvironment for Stem Cell Therapy Enhances the Nerve Tissue Repair.

    Xu, Chao / Wu, Ping / Yang, Kun / Mu, Congpu / Li, Binbin / Li, Xiaokun / Wang, Zhouguang / Liu, Zhongyuan / Wang, Xinyu / Luo, Zhiqiang

    Small (Weinheim an der Bergstrasse, Germany)

    2023  , Page(s) e2309793

    Abstract: The nerve guidance conduits incorporated with stem cells, which can differentiate into the Schwann cells (SCs) to facilitate myelination, shows great promise for repairing the severe peripheral nerve injury. The innovation of advanced hydrogel materials ... ...

    Abstract The nerve guidance conduits incorporated with stem cells, which can differentiate into the Schwann cells (SCs) to facilitate myelination, shows great promise for repairing the severe peripheral nerve injury. The innovation of advanced hydrogel materials encapsulating stem cells, is highly demanded for generating supportive scaffolds and adaptive microenvironment for nerve regeneration. Herein, this work demonstrates a novel strategy in regulating regenerative microenvironment for peripheral nerve repair with a biodegradable conductive hydrogel scaffold, which can offer multifunctional capabilities in immune regulation, enhancing angiogenesis, driving SCs differentiation, and promoting axon regrowth. The biodegradable conductive hydrogel is constructed by incorporation of polydopamine-modified silicon phosphorus (SiP@PDA) nanosheets into a mixture of methacryloyl gelatin and decellularized extracellular matrix (GelMA/ECM). The biomimetic electrical microenvironment performs an efficacious strategy to facilitate macrophage polarization toward a pro-healing phenotype (M2), meanwhile the conductive hydrogel supports vascularization in regenerated tissue through sustained Si element release. Furthermore, the MSCs 3D-cultured in GelMA/ECM-SiP@PDA conductive hydrogel exhibits significantly increased expression of genes associated with SC-like cell differentiation, thus facilitating the myelination and axonal regeneration. Collectively, both the in vitro and in vivo studies demonstrates that the rationally designed biodegradable multifunctional hydrogel significantly enhances nerve tissues repair.
    Language English
    Publishing date 2023-12-26
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2168935-0
    ISSN 1613-6829 ; 1613-6810
    ISSN (online) 1613-6829
    ISSN 1613-6810
    DOI 10.1002/smll.202309793
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Regulation of muscle and metabolic physiology by hypothalamic erythropoietin independently of its peripheral action.

    Wang, Zhouguang / Khor, Sinan / Cai, Dongsheng

    Molecular metabolism

    2019  Volume 32, Page(s) 56–68

    Abstract: Objective: The glycoprotein hormone erythropoietin (EPO) is required for erythropoiesis, and the kidney is the primary site of adult EPO synthesis. Limited evidence has suggested that EPO could be detectable in the brain under certain conditions, but it ...

    Abstract Objective: The glycoprotein hormone erythropoietin (EPO) is required for erythropoiesis, and the kidney is the primary site of adult EPO synthesis. Limited evidence has suggested that EPO could be detectable in the brain under certain conditions, but it remains unknown if the brain might have its own EPO system for biological functions that are independent of peripheral EPO production and action. We performed this study to address this question using mice under normal conditions versus pathophysiological conditions including aging and dietary obesity.
    Methods: EPO expression was measured in different brain regions as well as in the cerebrospinal fluid. Hypothalamic ventricular EPO was administered to physiologically examine possible therapeutic effects on the conditions of aging and dietary obesity. Body weight, body composition, insulin tolerance, and glucose tolerance were measured to assess the central effects of EPO on metabolic physiology, and muscle strength and histology were analyzed to assess the central effects of EPO on muscle function. In addition, β2-adrenergic receptor knockout bone marrow transplant was employed to determine the potential role of bone marrow in linking the brain to some of these peripheral functions.
    Results: This study revealed that EPO is expressed in the ventromedial hypothalamus in addition to a few other brain regions and is present in the cerebrospinal fluid. Unlike blood EPO concentration, which increased with aging and dietary obesity, hypothalamic EPO decreased in these disease conditions. Therapeutically, aged mice were chronically treated with EPO in the hypothalamic ventricle, showing an increase in lean mass, while body weight and fat mass decreased as a result of a moderate reduction of food intake. Both muscle and metabolic functions were improved by this central treatment, and mechanistically, adrenergic signals to the bone marrow played a role in conveying hypothalamic EPO to these peripheral actions. Dietary obesity was also studied, showing that hypothalamic EPO treatment caused a reduction in food intake and obesity, leading to improved metabolic functions related to decreased fat as well as increased lean mass.
    Conclusions: Hypothalamic EPO plays a role in the central regulation of muscle and metabolic physiology, while its decline contributes to aging and obesity physiology in a manner that is independent of peripheral EPO.
    MeSH term(s) Animals ; Diet, High-Fat/adverse effects ; Erythropoietin/administration & dosage ; Erythropoietin/metabolism ; Glucose Tolerance Test ; Hypothalamus/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Muscles/metabolism ; Obesity/chemically induced ; Obesity/metabolism
    Chemical Substances Erythropoietin (11096-26-7)
    Language English
    Publishing date 2019-12-06
    Publishing country Germany
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2708735-9
    ISSN 2212-8778 ; 2212-8778
    ISSN (online) 2212-8778
    ISSN 2212-8778
    DOI 10.1016/j.molmet.2019.12.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Age-dependent decline of hypothalamic HIF2α in response to insulin and its contribution to advanced age-associated metabolic disorders in mice.

    Wang, Zhouguang / Khor, Sinan / Cai, Dongsheng

    The Journal of biological chemistry

    2019  Volume 294, Issue 13, Page(s) 4946–4955

    Abstract: Hypoxia-inducible factor-2α (HIF2α) is a nuclear transcription factor that plays a critical role in cell survival including metabolic adaptation under hypoxia as well as normoxia, but whether HIF2α contributes to the control of whole-body metabolic ... ...

    Abstract Hypoxia-inducible factor-2α (HIF2α) is a nuclear transcription factor that plays a critical role in cell survival including metabolic adaptation under hypoxia as well as normoxia, but whether HIF2α contributes to the control of whole-body metabolic balance is unclear. In this study, we found that the hypothalamic HIF2α protein level rapidly increases in young mice that are centrally stimulated with insulin. However, this insulin-induced HIF2α up-regulation is substantially attenuated in mice of advanced age. This attenuation is comparable with the effect of high-calorie feeding in young mice. Of note, unlike high-calorie feeding conditions, age-dependent HIF2α attenuation occurs without impaired activation of the hypothalamic IR/IRS-2/AKT/FOXO1 pathway in response to insulin. Molecular and physiological analyses revealed that hypothalamic HIF2α contributes to the action of central insulin in regulation of proopiomelanocortin (
    MeSH term(s) Aging/genetics ; Aging/metabolism ; Aging/pathology ; Animals ; Basic Helix-Loop-Helix Transcription Factors/genetics ; Basic Helix-Loop-Helix Transcription Factors/metabolism ; Gene Expression Regulation ; Glucose Intolerance/genetics ; Glucose Intolerance/metabolism ; Glucose Intolerance/pathology ; Hypothalamus/metabolism ; Hypothalamus/pathology ; Insulin/genetics ; Insulin/metabolism ; Mice ; Mice, Transgenic ; Pro-Opiomelanocortin/biosynthesis ; Pro-Opiomelanocortin/genetics ; Signal Transduction
    Chemical Substances Basic Helix-Loop-Helix Transcription Factors ; Insulin ; endothelial PAS domain-containing protein 1 (1B37H0967P) ; Pro-Opiomelanocortin (66796-54-1)
    Language English
    Publishing date 2019-02-01
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2997-x
    ISSN 1083-351X ; 0021-9258
    ISSN (online) 1083-351X
    ISSN 0021-9258
    DOI 10.1074/jbc.RA118.005429
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Mesenchymal stem cell-derived extracellular vesicles in skin wound healing: roles, opportunities and challenges.

    Ding, Jia-Yi / Chen, Min-Jiang / Wu, Ling-Feng / Shu, Gao-Feng / Fang, Shi-Ji / Li, Zhao-Yu / Chu, Xu-Ran / Li, Xiao-Kun / Wang, Zhou-Guang / Ji, Jian-Song

    Military Medical Research

    2023  Volume 10, Issue 1, Page(s) 36

    Abstract: Skin wounds are characterized by injury to the skin due to trauma, tearing, cuts, or contusions. As such injuries are common to all human groups, they may at times represent a serious socioeconomic burden. Currently, increasing numbers of studies have ... ...

    Abstract Skin wounds are characterized by injury to the skin due to trauma, tearing, cuts, or contusions. As such injuries are common to all human groups, they may at times represent a serious socioeconomic burden. Currently, increasing numbers of studies have focused on the role of mesenchymal stem cell (MSC)-derived extracellular vesicles (EVs) in skin wound repair. As a cell-free therapy, MSC-derived EVs have shown significant application potential in the field of wound repair as a more stable and safer option than conventional cell therapy. Treatment based on MSC-derived EVs can significantly promote the repair of damaged substructures, including the regeneration of vessels, nerves, and hair follicles. In addition, MSC-derived EVs can inhibit scar formation by affecting angiogenesis-related and antifibrotic pathways in promoting macrophage polarization, wound angiogenesis, cell proliferation, and cell migration, and by inhibiting excessive extracellular matrix production. Additionally, these structures can serve as a scaffold for components used in wound repair, and they can be developed into bioengineered EVs to support trauma repair. Through the formulation of standardized culture, isolation, purification, and drug delivery strategies, exploration of the detailed mechanism of EVs will allow them to be used as clinical treatments for wound repair. In conclusion, MSC-derived EVs-based therapies have important application prospects in wound repair. Here we provide a comprehensive overview of their current status, application potential, and associated drawbacks.
    MeSH term(s) Humans ; Skin ; Soft Tissue Injuries ; Extracellular Vesicles ; Mesenchymal Stem Cells ; Wound Healing
    Language English
    Publishing date 2023-08-17
    Publishing country England
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 2768940-2
    ISSN 2054-9369 ; 2054-9369
    ISSN (online) 2054-9369
    ISSN 2054-9369
    DOI 10.1186/s40779-023-00472-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Editorial: The Fibroblast Growth Factor Signaling Pathway in Metabolic Regulation, Development, Disease, and Repair After Injury.

    Wang, Zhouguang / Lin, Li / Zhang, Jin-San / Zhong, Xingxing / Bellusci, Saverio / Li, Xiaokun

    Frontiers in pharmacology

    2020  Volume 11, Page(s) 586654

    Language English
    Publishing date 2020-09-08
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2587355-6
    ISSN 1663-9812
    ISSN 1663-9812
    DOI 10.3389/fphar.2020.586654
    Database MEDical Literature Analysis and Retrieval System OnLINE

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