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Chen S, Wang H, Du J, Ding Z, Wang T, Zhang L, Yang J, Guan Y, Chen C, Li M, Hei Z, Tao Y, Yao W. Near-infrared light-activatable, analgesic nanocomposite delivery system for comprehensive therapy of diabetic wounds in rats. Biomaterials 2024; 305:122467. [PMID: 38224643 DOI: 10.1016/j.biomaterials.2024.122467] [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: 10/19/2023] [Revised: 12/31/2023] [Accepted: 01/03/2024] [Indexed: 01/17/2024]
Abstract
Impaired angiogenesis, bacterial infection, persistent severe pain, exacerbated inflammation, and oxidative stress injury are intractable problems in the treatment of chronic diabetic ulcer wounds. A strategy that effectively targets all these issues has proven challenging. Herein, an in-situ sprayable nanoparticle-gel composite comprising platinum clusters (Pt) loaded-mesoporous polydopamine (MPDA) nanoparticle and QX-314-loaded fibrin gel (Pt@MPDA/QX314@Fibrin) was developed for diabetic wound analgesia and therapy. The composite shows good local analgesic effect of QX-314 mediated by near-infrared light (NIR) activation of transient receptor potential vanilloid 1 (TRPV1) channel, as well as multifunctional therapeutic effects of rapid hemostasis, anti-inflammation, antioxidation, and antibacterial properties that benefit the fast-healing of diabetic wounds. Furthermore, it demonstrates that the composite, with good biodegradability and biosafety, significantly relieved wound pain by inhibiting the expression of c-Fos in the dorsal root ganglion and the activation of glial cells in the spinal cord dorsal horn. Consequently, our designed sprayable Pt@MPDA/QX314@Fibrin composite with good biocompatibility, NIR activation of TRPV1 channel-mediated QX-314 local wound analgesia and comprehensive treatments, is promising for chronic diabetic wound therapy.
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Affiliation(s)
- Sufang Chen
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China; Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Haixia Wang
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China; Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China; Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, 510630, China
| | - Jingyi Du
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Zhendong Ding
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Tienan Wang
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Linan Zhang
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Jing Yang
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Yu Guan
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Chaojin Chen
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Mingqiang Li
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China; Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China; Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, 510630, China
| | - Ziqing Hei
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China.
| | - Yu Tao
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China; Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China; Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, 510630, China.
| | - Weifeng Yao
- Department of Anesthesiology and Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China.
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2
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Cui Z, Wei H, Goding C, Cui R. Stem cell heterogeneity, plasticity, and regulation. Life Sci 2023; 334:122240. [PMID: 37925141 DOI: 10.1016/j.lfs.2023.122240] [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: 09/08/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/06/2023]
Abstract
As a population of homogeneous cells with both self-renewal and differentiation potential, stem cell pools are highly compartmentalized and contain distinct subsets that exhibit stable but limited heterogeneity during homeostasis. However, their striking plasticity is showcased under natural or artificial stress, such as injury, transplantation, cancer, and aging, leading to changes in their phenotype, constitution, metabolism, and function. The complex and diverse network of cell-extrinsic niches and signaling pathways, together with cell-intrinsic genetic and epigenetic regulators, tightly regulate both the heterogeneity during homeostasis and the plasticity under perturbation. Manipulating these factors offers better control of stem cell behavior and a potential revolution in the current state of regenerative medicine. However, disruptions of normal regulation by genetic mutation or excessive plasticity acquisition may contribute to the formation of tumors. By harnessing innovative techniques that enhance our understanding of stem cell heterogeneity and employing novel approaches to maximize the utilization of stem cell plasticity, stem cell therapy holds immense promise for revolutionizing the future of medicine.
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Affiliation(s)
- Ziyang Cui
- Department of Dermatology and Venerology, Peking University First Hospital, Beijing 100034, China.
| | - Hope Wei
- Department of Biology, Boston University, 5 Cummington Mall, Boston, MA 02215, United States of America
| | - Colin Goding
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford OX37DQ, UK
| | - Rutao Cui
- Skin Disease Research Institute, The 2nd Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
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3
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Konkimalla A, Konishi S, Macadlo L, Kobayashi Y, Farino ZJ, Miyashita N, El Haddad L, Morowitz J, Barkauskas CE, Agarwal P, Souma T, ElMallah MK, Tata A, Tata PR. Transitional cell states sculpt tissue topology during lung regeneration. Cell Stem Cell 2023; 30:1486-1502.e9. [PMID: 37922879 PMCID: PMC10762634 DOI: 10.1016/j.stem.2023.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 06/22/2023] [Accepted: 10/03/2023] [Indexed: 11/07/2023]
Abstract
Organ regeneration requires dynamic cell interactions to reestablish cell numbers and tissue architecture. While we know the identity of progenitor cells that replace lost tissue, the transient states they give rise to and their role in repair remain elusive. Here, using multiple injury models, we find that alveolar fibroblasts acquire distinct states marked by Sfrp1 and Runx1 that influence tissue remodeling and reorganization. Unexpectedly, ablation of alveolar epithelial type-1 (AT1) cells alone is sufficient to induce tissue remodeling and transitional states. Integrated scRNA-seq followed by genetic interrogation reveals RUNX1 is a key driver of fibroblast states. Importantly, the ectopic induction or accumulation of epithelial transitional states induce rapid formation of transient alveolar fibroblasts, leading to organ-wide fibrosis. Conversely, the elimination of epithelial or fibroblast transitional states or RUNX1 loss, leads to tissue simplification resembling emphysema. This work uncovered a key role for transitional states in orchestrating tissue topologies during regeneration.
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Affiliation(s)
- Arvind Konkimalla
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA; Medical Scientist Training Program, Duke University School of Medicine, Durham, NC 27710, USA
| | - Satoshi Konishi
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Lauren Macadlo
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Yoshihiko Kobayashi
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Zachary J Farino
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Naoya Miyashita
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Léa El Haddad
- Division of Pulmonary and Sleep Medicine, Department of Pediatrics, School of Medicine, Duke University, Durham, NC, USA
| | - Jeremy Morowitz
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Christina E Barkauskas
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Duke University School of Medicine, Durham, NC 27710, USA
| | - Pankaj Agarwal
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Tomokazu Souma
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, NC, USA; Duke Regeneration Center, Duke University, Durham, NC 27710, USA
| | - Mai K ElMallah
- Division of Pulmonary and Sleep Medicine, Department of Pediatrics, School of Medicine, Duke University, Durham, NC, USA
| | - Aleksandra Tata
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA.
| | - Purushothama Rao Tata
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA; Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Duke University School of Medicine, Durham, NC 27710, USA; Duke Regeneration Center, Duke University, Durham, NC 27710, USA; Center for Advanced Genomic Technologies, Duke University, Durham, NC 27710, USA; Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA.
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4
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Rong H, Dong Y, Zhao J, Zhang X, Li S, Sun Y, Lu T, Yu S, Hu H. Fetal milieu-simulating hyaluronic acid-dopamine-chondroitin sulfate hydrogel promoting angiogenesis and hair regeneration for wound healing. Int J Biol Macromol 2023; 248:125739. [PMID: 37423445 DOI: 10.1016/j.ijbiomac.2023.125739] [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: 04/06/2023] [Revised: 06/29/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
Wound regeneration with complete functions and skin appendages is still challenging in wound dressing application. Inspired by the efficient wound healing in the fetal environment, we developed a fetal milieu-mimicking hydrogel for accelerating wound healing simultaneously with hair follicle regeneration. To mimic the fetal extracellular matrix (ECM), which contains high content of glycosaminoglycans, hyaluronic acid (HA) and chondroitin sulfate (CS) were selected to fabricate hydrogels. Meanwhile, dopamine (DA) modification endowed hydrogels with satisfactory mechanical properties and multi-functions. The hydrogel encapsulated atorvastatin (ATV) and zinc citrate (ZnCit), namely HA-DA-CS/Zn-ATV, exhibited tissue adhesion, self-healing capacity, good biocompatibility, excellent anti-oxidant ability, high exudate absorption, and hemostasis property. In vitro results revealed that hydrogels exerted significant angiogenesis and hair follicle regeneration efficacy. In vivo results confirmed that hydrogels significantly promoted wound healing, and the closure ratio reached over 94 % after 14 days of hydrogels-treatment. The regenerated skin exhibited a complete epidermis, dense and ordered collagen. Furthermore, the number of neovessels and hair follicles in the HA-DA-CS/Zn-ATV group were 1.57- and 3.05-fold higher than those of the HA-DA-CS group. Thus, HA-DA-CS/Zn-ATV serves as multifunctional hydrogels for simulating the fetal milieu and achieving efficient skin reconstruction with hair follicle regrowth, exhibiting potential in clinical wound healing.
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Affiliation(s)
- Hehui Rong
- School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou 510006, China
| | - Yating Dong
- School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou 510006, China
| | - Junke Zhao
- School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou 510006, China
| | - Xuefei Zhang
- School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou 510006, China; School of Traditional Dai-Thai Medicine, West Yunnan University of Applied Sciences, Jinghong 666100, China
| | - Shuxuan Li
- School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou 510006, China
| | - Yingying Sun
- School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou 510006, China
| | - Tianli Lu
- School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou 510006, China
| | - Shihui Yu
- School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou 510006, China.
| | - Haiyan Hu
- School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Chiral Molecules and Drug Discovery, Sun Yat-sen University, Guangzhou 510006, China.
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5
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Yaqubi M, Groh AMR, Dorion MF, Afanasiev E, Luo JXX, Hashemi H, Sinha S, Kieran NW, Blain M, Cui QL, Biernaskie J, Srour M, Dudley R, Hall JA, Sonnen JA, Arbour N, Prat A, Stratton JA, Antel J, Healy LM. Analysis of the microglia transcriptome across the human lifespan using single cell RNA sequencing. J Neuroinflammation 2023; 20:132. [PMID: 37254100 DOI: 10.1186/s12974-023-02809-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 05/17/2023] [Indexed: 06/01/2023] Open
Abstract
BACKGROUND Microglia are tissue resident macrophages with a wide range of critically important functions in central nervous system development and homeostasis. METHOD In this study, we aimed to characterize the transcriptional landscape of ex vivo human microglia across different developmental ages using cells derived from pre-natal, pediatric, adolescent, and adult brain samples. We further confirmed our transcriptional observations using ELISA and RNAscope. RESULTS We showed that pre-natal microglia have a distinct transcriptional and regulatory signature relative to their post-natal counterparts that includes an upregulation of phagocytic pathways. We confirmed upregulation of CD36, a positive regulator of phagocytosis, in pre-natal samples compared to adult samples in situ. Moreover, we showed adult microglia have more pro-inflammatory signature compared to microglia from other developmental ages. We indicated that adult microglia are more immune responsive by secreting increased levels of pro-inflammatory cytokines in response to LPS treatment compared to the pre-natal microglia. We further validated in situ up-regulation of IL18 and CXCR4 in human adult brain section compared to the pre-natal brain section. Finally, trajectory analysis indicated that the transcriptional signatures adopted by microglia throughout development are in response to a changing brain microenvironment and do not reflect predetermined developmental states. CONCLUSION In all, this study provides unique insight into the development of human microglia and a useful reference for understanding microglial contribution to developmental and age-related human disease.
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Affiliation(s)
- Moein Yaqubi
- Neuroimmunology Unit, Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Adam M R Groh
- Neuroimmunology Unit, Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Marie-France Dorion
- Neuroimmunology Unit, Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Elia Afanasiev
- Neuroimmunology Unit, Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Julia Xiao Xuan Luo
- Department of Microbiology and Immunology, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Hadi Hashemi
- Department of Electrical and Electronic Engineering, Shiraz University of Technology, Shiraz, Fars, Iran
| | - Sarthak Sinha
- Department of Comparative Biology and Experimental Medicine, University of Calgary, Calgary, AB, Canada
| | - Nicholas W Kieran
- Neuroimmunology Unit, Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Manon Blain
- Neuroimmunology Unit, Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Qiao-Ling Cui
- Neuroimmunology Unit, Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Jeff Biernaskie
- Department of Comparative Biology and Experimental Medicine, University of Calgary, Calgary, AB, Canada
| | - Myriam Srour
- Neuroimmunology Unit, Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
- Department of Pediatric Neurosurgery, Montreal Children's Hospital, Montreal, QC, Canada
| | - Roy Dudley
- Neuroimmunology Unit, Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
- Department of Pediatric Neurosurgery, Montreal Children's Hospital, Montreal, QC, Canada
| | - Jeffery A Hall
- Neuroimmunology Unit, Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Joshua A Sonnen
- Departments of Pathology, Neurology and Neurosurgery, McGill University, Montreal, QC, Canada
| | - Nathalie Arbour
- Neuroimmunology Research Laboratory, Centre de Recherche du Centre Hospitalier de L, Université de Montréal (CRCHUM), Montreal, QC, Canada
- Department of Neurosciences, Université de Montréal, Montreal, QC, Canada
| | - Alexandre Prat
- Department of Neurosciences, Université de Montréal, Montreal, QC, Canada
| | - Jo Anne Stratton
- Neuroimmunology Unit, Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Jack Antel
- Neuroimmunology Unit, Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Luke M Healy
- Neuroimmunology Unit, Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada.
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6
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Tomasso A, Koopmans T, Lijnzaad P, Bartscherer K, Seifert AW. An ERK-dependent molecular switch antagonizes fibrosis and promotes regeneration in spiny mice ( Acomys). SCIENCE ADVANCES 2023; 9:eadf2331. [PMID: 37126559 PMCID: PMC10132760 DOI: 10.1126/sciadv.adf2331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Although most mammals heal injured tissues and organs with scarring, spiny mice (Acomys) naturally regenerate skin and complex musculoskeletal tissues. Now, the core signaling pathways driving mammalian tissue regeneration are poorly characterized. Here, we show that, while immediate extracellular signal-regulated kinase (ERK) activation is a shared feature of scarring (Mus) and regenerating (Acomys) injuries, ERK activity is only sustained at high levels during complex tissue regeneration. Following ERK inhibition, ear punch regeneration in Acomys shifted toward fibrotic repair. Using single-cell RNA sequencing, we identified ERK-responsive cell types. Loss- and gain-of-function experiments prompted us to uncover fibroblast growth factor and ErbB signaling as upstream ERK regulators of regeneration. The ectopic activation of ERK in scar-prone injuries induced a pro-regenerative response, including cell proliferation, extracellular matrix remodeling, and hair follicle neogenesis. Our data detail an important distinction in ERK activity between regenerating and poorly regenerating adult mammals and open avenues to redirect fibrotic repair toward regenerative healing.
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Affiliation(s)
- Antonio Tomasso
- Max Planck Institute for Molecular Biomedicine, Röntgenstrasse 20, Münster 48149, Germany
- Cells in Motion Cluster of Excellence-International Max Planck Research School (CiM-IMPRS Graduate Program), Münster 48149, Germany
- Hubrecht Institute-KNAW (Royal Netherlands Academy of Arts and Sciences), Uppsalalaan 8, Utrecht 3584CT, Netherlands
- Department of Biology/Chemistry, Osnabrück University, Barbarastrasse 11, Osnabrück 49076, Germany
- Department of Biology, University of Kentucky, 101 T.H. Morgan Building, Lexington, KY 40506, USA
| | - Tim Koopmans
- Hubrecht Institute-KNAW (Royal Netherlands Academy of Arts and Sciences), Uppsalalaan 8, Utrecht 3584CT, Netherlands
- Department of Biology/Chemistry, Osnabrück University, Barbarastrasse 11, Osnabrück 49076, Germany
| | - Philip Lijnzaad
- Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, Utrecht 3584 CS, Netherlands
| | - Kerstin Bartscherer
- Max Planck Institute for Molecular Biomedicine, Röntgenstrasse 20, Münster 48149, Germany
- Cells in Motion Cluster of Excellence-International Max Planck Research School (CiM-IMPRS Graduate Program), Münster 48149, Germany
- Hubrecht Institute-KNAW (Royal Netherlands Academy of Arts and Sciences), Uppsalalaan 8, Utrecht 3584CT, Netherlands
- Department of Biology/Chemistry, Osnabrück University, Barbarastrasse 11, Osnabrück 49076, Germany
| | - Ashley W Seifert
- Department of Biology, University of Kentucky, 101 T.H. Morgan Building, Lexington, KY 40506, USA
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7
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Li Y, Liu D, Tan F, Yin W, Li Z. Umbilical cord derived mesenchymal stem cell-GelMA microspheres for accelerated wound healing. Biomed Mater 2022; 18. [PMID: 36541452 DOI: 10.1088/1748-605x/aca947] [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: 08/10/2022] [Accepted: 12/06/2022] [Indexed: 12/12/2022]
Abstract
Mesenchymal stem cells (MSCs) are an ideal seed cell for tissue engineering and stem cell transplantation. MSCs combined with biological scaffolds play an important role in promoting the repair of cutaneous wound. However, direct administration of MSCs is challenging for MSCs survival and integration into tissues. Providing MSCs with a biocompatible scaffold can improve MSCs survival, but the effect of gelatin methacrylate (GelMA) loaded MSCs from umbilical cord MSCs (UC-MSCs) in wound healing remains unknown. Here, we investigated the ability of GelMA with UC-MSCs complexes to promote migration and proliferation and the effect on wound healing in mouse models. We discovered that UC-MSCs attached to GelMA and promoted the proliferation and migration of fibroblasts. Both UC-MSCs and UC-MSCs-derived extracellular vesicles accelerated wound healing. MSC + Gelatin methacrylate microspheres (GMs) application decreased expression of transforming growth factor-β(TGF-β) and Type III collagen (Col3)in vivo, leading to new collagen deposition and angiogenesis, and accelerate wound healing and skin tissue regeneration. Taken together, these findings indicate MSC + GMs can promote wound healing by regulating wound healing-related factors in the paracrine. Therefore, our research proves that GelMA is an ideal scaffold for the top management of UC-MSCs in wound healing medical practice.
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Affiliation(s)
- Yanqun Li
- Dongguan Enlife Stem Cell Biotechnology Institute, Zheshang Building, #430 Dongguan Ave., Dongguan, Guangdong 523000, People's Republic of China
| | - Dongyu Liu
- Dongguan Enlife Stem Cell Biotechnology Institute, Zheshang Building, #430 Dongguan Ave., Dongguan, Guangdong 523000, People's Republic of China
| | - Fengming Tan
- Dongguan Enlife Stem Cell Biotechnology Institute, Zheshang Building, #430 Dongguan Ave., Dongguan, Guangdong 523000, People's Republic of China
| | - Wenling Yin
- Dongguan Enlife Stem Cell Biotechnology Institute, Zheshang Building, #430 Dongguan Ave., Dongguan, Guangdong 523000, People's Republic of China
| | - Zhihuan Li
- Dongguan Enlife Stem Cell Biotechnology Institute, Zheshang Building, #430 Dongguan Ave., Dongguan, Guangdong 523000, People's Republic of China
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8
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Pan S, Li S, Zhan Y, Chen X, Sun M, Liu X, Wu B, Li Z, Liu B. Immune status for monitoring and treatment of bladder cancer. Front Immunol 2022; 13:963877. [PMID: 36159866 PMCID: PMC9492838 DOI: 10.3389/fimmu.2022.963877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 08/22/2022] [Indexed: 11/24/2022] Open
Abstract
The high recurrence rate of non-muscle invasive bladder cancer (BC) and poor prognosis of advanced BC are therapeutic challenges that need to be solved. Bacillus Calmette-Guerin (BCG) perfusion was the pioneer immunotherapy for early BC, and the discovery of immune checkpoint inhibitors has created a new chapter in the treatment of advanced BC. The benefit of immunotherapy is highly anticipated, but its effectiveness still needs to be improved. In this review, we collated and analysed the currently available information and explored the mechaisms by which the internal immune imbalance of BC leads to tumour progression. The relationship between immunity and progression and the prognosis of BC has been explored through tests using body fluids such as blood and urine. These analytical tests have attempted to identify specific immuyne cells and cytokines to predict treatment outcomes and recurrence. The diversity and proportion of immune and matrix cells in BC determine the heterogeneity and immune status of tumours. The role and classification of immune cells have also been redefined, e.g., CD4 cells having recognised cytotoxicity in BC. Type 2 immunity, including that mediated by M2 macrophages, Th2 cells, and interleukin (IL)-13, plays an important role in the recurrence and progression of BC. Pathological fibrosis, activated by type 2 immunity and cancer cells, enhances the rate of cancer progression and irreversibility. Elucidating the immune status of BC and clarifying the mechanisms of action of different cells in the tumour microenvironment is the research direction to be explored in the future.
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Affiliation(s)
- Shen Pan
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Shijie Li
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yunhong Zhan
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xiaonan Chen
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ming Sun
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xuefeng Liu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Bin Wu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Zhenhua Li
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Bitian Liu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
- *Correspondence: Bitian Liu, ;
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9
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Vitamin A in Skin and Hair: An Update. Nutrients 2022; 14:nu14142952. [PMID: 35889909 PMCID: PMC9324272 DOI: 10.3390/nu14142952] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/08/2022] [Accepted: 07/16/2022] [Indexed: 12/04/2022] Open
Abstract
Vitamin A is a fat-soluble micronutrient necessary for the growth of healthy skin and hair. However, both too little and too much vitamin A has deleterious effects. Retinoic acid and retinal are the main active metabolites of vitamin A. Retinoic acid dose-dependently regulates hair follicle stem cells, influencing the functioning of the hair cycle, wound healing, and melanocyte stem cells. Retinoic acid also influences melanocyte differentiation and proliferation in a dose-dependent and temporal manner. Levels of retinoids decline when exposed to ultraviolet irradiation in the skin. Retinal is necessary for the phototransduction cascade that initiates melanogenesis but the source of that retinal is currently unknown. This review discusses new research on retinoids and their effects on the skin and hair.
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10
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Wang D, Chen H, Lei L, Chen J, Gao J, Liu J, Li Q, Xie Y, Hu Y, Ni Y. Biofabricated macrophage and fibroblast membranes synergistically promote skin wound healing. BIOENGINEERING & TRANSLATIONAL MEDICINE 2022; 7:e10344. [PMID: 36176601 PMCID: PMC9472019 DOI: 10.1002/btm2.10344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 03/21/2022] [Accepted: 05/14/2022] [Indexed: 12/11/2022]
Abstract
Effective skin wound healing is a complex process involving anti‐inflammation, fibrosis, matrix reconstruction, and angiogenesis. This work aimed to integrate the macrophage‐mediated anti‐inflammation and fibroblast‐assisted matrix reconstruction for enhanced skin wound healing. Herein, we utilized the cytomembranes derived from repolarized M2 macrophages and fibroblasts to prepare the natural biologics. Results showed that the inflammatory M1 macrophages were repolarized to M2 phenotype by the M2 macrophage cytomembranes. As a consequence, the cytomembranes of M2 macrophage could facilitate the wound closure in mice. Furthermore, the addition of fibroblast membranes to the macrophage cytomembranes contributed to a better matrix reconstruction, neovascularization and angiogenesis. Next, we used a transforming growth factor‐β (TGF‐β) inhibitor to attenuate cutaneous scar formation. Therefore, our modality could promote skin wound healing and effectively suppress scar formation in the preclinical murine skin wounds. The cytomembrane biologics might provide a biocompatible and versatile tool for wound healing.
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Affiliation(s)
- Dongqing Wang
- The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine Chongqing Medical University Yuzhong District, Chongqing China
| | - Heying Chen
- The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine Chongqing Medical University Yuzhong District, Chongqing China
| | - Li Lei
- The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine Chongqing Medical University Yuzhong District, Chongqing China
| | - Jun Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics and University of Chinese Academy of Sciences (UCAS), Chinese Academy of Sciences (CAS) Beijing China
| | - Jimin Gao
- Zhejiang Provincial Key Laboratory for Technology & Application of Model Organisms, School of Laboratory Medicine and Life Science Wenzhou Medical University, University Town Wenzhou Zhejiang China
| | - Jiahe Liu
- The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine Chongqing Medical University Yuzhong District, Chongqing China
| | - Qianyin Li
- The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine Chongqing Medical University Yuzhong District, Chongqing China
| | - Yajun Xie
- The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine Chongqing Medical University Yuzhong District, Chongqing China
| | - Yi Hu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics and University of Chinese Academy of Sciences (UCAS), Chinese Academy of Sciences (CAS) Beijing China
| | - Yilu Ni
- The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine Chongqing Medical University Yuzhong District, Chongqing China
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Kim JY, Park M, Ohn J, Seong RH, Chung JH, Kim KH, Jo SJ, Kwon O. Twist2-driven chromatin remodeling governs the postnatal maturation of dermal fibroblasts. Cell Rep 2022; 39:110821. [PMID: 35584664 DOI: 10.1016/j.celrep.2022.110821] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/05/2022] [Accepted: 04/22/2022] [Indexed: 12/17/2022] Open
Abstract
Dermal fibroblasts lose stem cell potency after birth, which prevents regenerative healing. However, the underlying intracellular mechanisms are largely unknown. We uncover the postnatal maturation of papillary fibroblasts (PFs) driven by the extensive Twist2-mediated remodeling of chromatin accessibility. A loss of the regenerative ability of postnatal PFs occurs with decreased H3K27ac levels. Single-cell transcriptomics, assay for transposase-accessible chromatin sequencing (ATAC-seq), and chromatin immunoprecipitation sequencing (ChIP-seq) reveal the postnatal maturation trajectory associated with the loss of the regenerative trajectory in PFs, which is characterized by a marked decrease in chromatin accessibility and H3K27ac modifications. Histone deacetylase inhibition delays spontaneous chromatin remodeling, thus maintaining the regenerative ability of postnatal PFs. Genomic analysis identifies Twist2 as a major regulator within chromatin regions with decreased accessibility during the postnatal period. When Twist2 is genetically deleted in dermal fibroblasts, the intracellular cascade of postnatal maturation is significantly delayed. Our findings reveal the comprehensive intracellular mechanisms underlying intrinsic postnatal changes in dermal fibroblasts.
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Affiliation(s)
- Jin Yong Kim
- Department of Dermatology, Seoul National University College of Medicine, Seoul 03080, Korea; Laboratory of Cutaneous Aging and Hair Research, Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul 03080, Korea; Department of Dermatology, Columbia University, New York 10032, NY, USA
| | - Minji Park
- Department of Dermatology, Seoul National University College of Medicine, Seoul 03080, Korea; Laboratory of Cutaneous Aging and Hair Research, Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul 03080, Korea; Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Jungyoon Ohn
- Department of Dermatology, Seoul National University College of Medicine, Seoul 03080, Korea; Laboratory of Cutaneous Aging and Hair Research, Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul 03080, Korea
| | - Rho Hyun Seong
- Department of Biological Sciences, Institute of Molecular Biology and Genetics, Seoul National University, Seoul 08826, Korea
| | - Jin Ho Chung
- Department of Dermatology, Seoul National University College of Medicine, Seoul 03080, Korea; Laboratory of Cutaneous Aging and Hair Research, Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul 03080, Korea; Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Kyu Han Kim
- Department of Dermatology, Seoul National University College of Medicine, Seoul 03080, Korea; Laboratory of Cutaneous Aging and Hair Research, Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul 03080, Korea
| | - Seong Jin Jo
- Department of Dermatology, Seoul National University College of Medicine, Seoul 03080, Korea; Laboratory of Cutaneous Aging and Hair Research, Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul 03080, Korea.
| | - Ohsang Kwon
- Department of Dermatology, Seoul National University College of Medicine, Seoul 03080, Korea; Laboratory of Cutaneous Aging and Hair Research, Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul 03080, Korea; Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, Korea; Genomic Medicine Institute, Medical Research Center, Seoul National University College of Medicine, Seoul 03080, Korea.
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Production of an Animal Model of Semi-Yin and Semi-Yang Syndrome with Diabetic Ulcers and Study of Its Pathological and Metabolic Features. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6345147. [PMID: 34257687 PMCID: PMC8257356 DOI: 10.1155/2021/6345147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 06/03/2021] [Indexed: 11/17/2022]
Abstract
Background To create an animal model for diabetic ulcers with semi-Yin and semi-Yang (SYSY) syndrome and to study the pathological and metabolic features of SYSY syndrome. Methods Firstly, based on the clinical characteristics of the SYSY syndrome of diabetic ulcer, an animal model of diabetic ulcers with SYSY syndrome being full-thickness skin defects was created by injecting streptozotocin (STZ) intraperitoneally, infecting with Staphylococcus aureus, and gastrically administering senna. Secondly, the content and distribution patterns of collagen fibers, the expression of neutrophils and macrophage markers, angiogenesis, and the expression of IL-1β and IL-10 in the rats with Yang syndrome, Yin syndrome, and SYSY syndrome of diabetic ulcers at different time points were detected. Representative traditional Chinese medicine (TCM) ointment of Yang syndrome, Yin syndrome, and SYSY syndrome was used to treat this animal model. The above indexes in each treatment group were detected. Finally, metabonomics was used to detect and analyze the changes of differential metabolites related to macrophage metabolism in Yang, Yin, and SYSY syndromes at different time points. Results An animal model of diabetic ulcers with SYSY syndrome was established. The pathological features of the SYSY syndrome group were chronic low-grade inflammatory reactions. On the third day, the SYSY syndrome group displayed lower expression of CD16, CD68, CD163, IL-1β, and metabolites related to M1-type macrophages compared with other groups. On the seventh day, the SYSY syndrome group showed lower expression of CD31, IL-10, myeloperoxidase, and metabolites related to M2-type macrophages. Treatment with Chong He Ointment, a representative TCM ointment for SYSY syndrome, reversed the expression levels of these indexes and promoted wound healing in the SYSY group. Conclusion SYSY syndrome presents a persistent pathological state of low inflammation, which may be caused by an insufficient activation of the M1-type metabolic pathway in macrophages in the early acute inflammatory stage, resulting in the incomplete clearance of pathogens and debris and continuous stimulation of macrophages to initiate the M1-type metabolic pathway. CD163, CD31, IL-10, and citric acid can be used as potential specific markers for the recovery and progression of SYSY syndrome.
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