1
|
Laitman BM, Charytonowicz D, Zhu AJ, Lynch K, Varelas EA, Burton M, Andreou C, Kore P, Kirke DN, Chen YW, Beaumont KG, Sebra R, Genden EM, Courey MS. High-Resolution Profiling of Human Vocal Fold Cellular Landscapes With Single-Nuclei RNA Sequencing. Laryngoscope 2024; 134:3193-3200. [PMID: 38415934 DOI: 10.1002/lary.31334] [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: 05/17/2023] [Revised: 12/28/2023] [Accepted: 01/23/2024] [Indexed: 02/29/2024]
Abstract
INTRODUCTION The function of the vocal folds (VFs) is determined by the phenotype, abundance, and distribution of differentiated cells within specific microenvironments. Identifying this histologic framework is crucial in understanding laryngeal disease. A paucity of studies investigating VF cellular heterogeneity has been undertaken. Here, we examined the cellular landscape of human VFs by utilizing single-nuclei RNA-sequencing. METHODS Normal true VF tissue was excised from five patients undergoing pitch elevation surgery. Tissue was snap frozen in liquid nitrogen and subjected to cellular digestion and nuclear extraction. Nuclei were processed for single-nucleus sequencing using the 10X Genomics Chromium platform. Sequencing reads were assembled using cellranger and analyzed with the scanpy package in python. RESULTS RNA sequencing revealed 18 global cell clusters. While many were of epithelial origin, expected cell types, such as fibroblasts, immune cells, muscle cells, and endothelial cells were present. Subcluster analysis defined unique epithelial, immune, and fibroblast subpopulations. CONCLUSION This study evaluated the cellular heterogeneity of normal human VFs by utilizing single-nuclei RNA-sequencing. With further confirmation through additional spatial sequencing and microscopic imaging, a novel cellular map of the VFs may provide insight into new cellular targets for VF disease. LEVEL OF EVIDENCE NA Laryngoscope, 134:3193-3200, 2024.
Collapse
Affiliation(s)
- Benjamin M Laitman
- Department of Otolaryngology, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, U.S.A
| | | | - Ashley J Zhu
- Icahn School of Medicine at Mount Sinai, New York, New York, 10029, U.S.A
| | - Katie Lynch
- Icahn School of Medicine at Mount Sinai, New York, New York, 10029, U.S.A
| | - Eleni A Varelas
- Department of Otolaryngology, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, U.S.A
| | - Madeline Burton
- Department of Otolaryngology, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, U.S.A
| | - Christina Andreou
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, U.S.A
| | - Pragati Kore
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, U.S.A
| | - Diana N Kirke
- Department of Otolaryngology, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, U.S.A
| | - Ya-Wen Chen
- Department of Otolaryngology, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, U.S.A
| | - Kristin G Beaumont
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, U.S.A
| | - Robert Sebra
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, U.S.A
| | - Eric M Genden
- Department of Otolaryngology, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, U.S.A
| | - Mark S Courey
- Department of Otolaryngology, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, U.S.A
| |
Collapse
|
2
|
Hamilton NJI, Tait A, Weil B, Daniels J. The Use of a Dehydrated Cellularized Collagen Matrix to Replace Fibrotic Vocal Fold Mucosa. Laryngoscope 2024; 134:882-893. [PMID: 37681762 DOI: 10.1002/lary.31034] [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: 05/09/2023] [Revised: 08/01/2023] [Accepted: 08/07/2023] [Indexed: 09/09/2023]
Abstract
OBJECTIVES Fibrosis of the vocal fold lamina propria reduces vocal cord vibration resulting in a chronically hoarse voice. We describe a novel approach using umbilical cord-derived mesenchymal stem cells in a dehydrated collagen matrix (cellogen) to reconstruct the delicate balance of extracellular matrix within the vocal fold lamina propria whilst limiting the host inflammatory response to the implant. METHODS Human umbilical cord-derived mesenchymal stem-cells were embedded in bovine type I collagen hydrogel and dehydrated using the RAFT™ 3D culture system. The extracellular matrix, cellular viability and composition, paracrine profile, and genomic profile were assessed and the scaffold engrafted onto the hind muscle of NUDE mice. RESULTS The cells retained stem-cell markers following fabrication and secreted collagen III, fibronectin, and glycosaminoglycans within the scaffold. Electron microscopy showed the scaffold consisted of single strands of protein with interspersed bundles of a similar size to native vocal fold lamina propria. The use of the dehydration step improved cell viability and upregulated the expression of genes important in wound healing and matrix organization compared with unmodified collagen hydrogel carriers. The cells were shown to secrete exosomes and cytokines and, following engraftment within an immunocompromised mouse model, appeared to modulate the host inflammatory response compared with controls. CONCLUSION This article provides a scalable cell-protein scaffold that with further modifications could provide a replacement for lost or damaged vocal fold mucosa. Further investigations are required to assess the mechanical properties of the scaffold and inhibit the differentiation of the umbilical cord-derived stem-cells following implantation. Laryngoscope, 134:882-893, 2024.
Collapse
Affiliation(s)
- Nick J I Hamilton
- Head & Neck Academic Centre, UCL Division of Surgery and Interventional Sciences, University College London, London, UK
- Royal National Ear Nose & Throat Hospital, University College London Hospitals NHS Trust, London, UK
| | - Angela Tait
- Centre for Cell, Gene & Tissue Therapy, Royal Free London NHS Foundation Trust, London, UK
| | - Ben Weil
- Centre for Cell, Gene & Tissue Therapy, Royal Free London NHS Foundation Trust, London, UK
| | - Julie Daniels
- Cells for Sight, Institute of Ophthalmology, University College London, London, UK
| |
Collapse
|
3
|
Jin J, Chen Z, Cao Z, Zhou S, Zhang X, Yao H. Epstein-Barr virus-associated leiomyosarcoma of the larynx in an adult patient with human immunodeficiency virus infection: Case report and review of the literature. Head Neck 2022; 44:2886-2903. [PMID: 36069494 PMCID: PMC9826281 DOI: 10.1002/hed.27184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/07/2022] [Accepted: 08/18/2022] [Indexed: 01/11/2023] Open
Abstract
We investigated the clinical features, treatment, and prognosis of laryngeal leiomyosarcoma (LLMS) and Epstein-Barr virus-associated (EBV-associated) LMS. We report a case of EBV-associated LLMS in an adult patient with HIV infection. We also conducted a review of the English-language literature on LLMS and EBV-associated leiomyosarcoma. To the best of our knowledge, 62 cases of LLMS and EBV-associated leiomyosarcoma have been reported to date. Of patients with LLS, 18.9% had distant metastases and 17.0% had local recurrence. The overall 5-year survival rate was 64.0%. Distant metastases affected the survival of patients with LLMS (p = 0.04). EBV-positive patients had a low survival rate (p = 0.01). Among patients with EBV-associated LMS, 8.2% had distant metastases and recurrence and the overall 5-year survival rate was 50.0%. EBV-associated LLMS is rare. The EBV infection might be a poor prognostic factor of LLMS.
Collapse
Affiliation(s)
- Jian‐Di Jin
- Department of Infection, The First Affiliated HospitalZhejiang University School of MedicineHangzhou CityP.R. China
| | - Zhe Chen
- Department of Otolaryngology, The First Affiliated HospitalZhejiang University School of MedicineHangzhou CityP.R. China
| | - Zai‐Zai Cao
- Department of Otolaryngology, The First Affiliated HospitalZhejiang University School of MedicineHangzhou CityP.R. China
| | - Shui‐Hong Zhou
- Department of Otolaryngology, The First Affiliated HospitalZhejiang University School of MedicineHangzhou CityP.R. China
| | - Xiu‐Ming Zhang
- Department of Pathology, The First Affiliated HospitalZhejiang University School of MedicineHangzhou CityP.R. China
| | - Hong‐Tian Yao
- Department of Pathology, The First Affiliated HospitalZhejiang University School of MedicineHangzhou CityP.R. China
| |
Collapse
|
4
|
Energy metabolism of cells in the macula flava of the newborn vocal fold from the aspect of mitochondrial microstructure. J Laryngol Otol 2021; 135:779-784. [PMID: 34448687 DOI: 10.1017/s0022215121001614] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE Cells in the vocal fold of maculae flavae are likely to be tissue stem cells. Energy metabolism of the cells in newborn maculae flavae was investigated from the aspect of mitochondrial microstructure. METHOD Five normal newborn vocal folds were investigated under transmission electron microscopy. RESULTS Mitochondria consisted of a double membrane bounded body containing matrices and a system of cristae. However, these membranes were ambiguous. In each mitochondrion, the lamellar cristae were sparse. Intercristal space was occupied by a mitochondrial matrix. Some mitochondria had fused to lipid droplets and rough endoplasmic reticulum, and both the mitochondrial outer and inner membranes had incarcerated and disappeared. CONCLUSION The features of the mitochondria of the cells in the newborn maculae flavae showed that their metabolic activity and oxidative phosphorylation were low. The metabolism of the cells in the newborn maculae flavae seems to be favourable to maintain the stemness and undifferentiation of the cells.
Collapse
|
5
|
Sato K, Chitose S, Sato K, Sato F, Ono T, Umeno H. Role of colony-forming tissue stem cells in the macula flava of the human vocal fold in vivo. Laryngoscope Investig Otolaryngol 2021; 6:283-290. [PMID: 33869760 PMCID: PMC8035955 DOI: 10.1002/lio2.550] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 01/15/2021] [Accepted: 03/12/2021] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES Our previous investigations showed that tissue stem cells in the maculae flavae (a stem cell niche) form colonies in vivo like stem cells in vitro. However, the roles of colony-forming cells in the maculae flavae in vivo have not yet been determined.This study investigated the metabolism of the colony-forming tissue stem cells in the maculae flavae of the human adult vocal fold. STUDY DESIGN Histologic analysis of the human vocal folds. METHODS Three normal human adult vocal folds were investigated under transmission electron microscopy and light microscopy including immunohistochemistry. RESULTS Mitochondrial cristae of the colony-forming cells in the maculae flavae were sparse. Hence, the microstructural features of the mitochondria suggested that their metabolic activity and oxidative phosphorylation were low. Colony-forming cells strongly expressed glucose transporter-1 and glycolytic enzymes (hexokinase II, glyceraldehyde-3-phosphate dehydrogenase and lactate dehydrogenase A). The colony-forming cells did not express phosphofructokinase-1 but did express glucose-6-phosphate dehydrogenase indicating the cells relied more on the pentose phosphate pathway. Since the colony-forming cells expressed lactate dehydrogenase A, cells seemed to rely more on anaerobic glycolysis in an anaerobic microenvironment. CONCLUSIONS The present study is consistent with the hypothesis that the colony-forming tissue stem cells in the maculae flavae of the human adult vocal fold seemed to rely more on anaerobic glycolysis using the pentose phosphate pathway for energy supply in vivo. Microstructural features of the mitochondria and expressed glycolytic enzymes of the colony-forming cells in the maculae flavae suggested that the oxidative phosphorylation activity was low.In an anaerobic microenvironment in vivo, there is likely a complex cross-talk regarding the metabolism between the colony-forming aggregated cells along the adhesion machinery and chemical signaling pathways, which reduces toxic oxygen species and is favorable to maintaining the stemness and undifferentiated states of the tissue stem cells. LEVEL OF EVIDENCE NA.
Collapse
Affiliation(s)
- Kiminori Sato
- Department of Otolaryngology‐Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Shun‐ichi Chitose
- Department of Otolaryngology‐Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Kiminobu Sato
- Department of Otolaryngology‐Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Fumihiko Sato
- Department of Otolaryngology‐Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Takeharu Ono
- Department of Otolaryngology‐Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Hirohito Umeno
- Department of Otolaryngology‐Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| |
Collapse
|
6
|
Sato K, Chitose S, Sato K, Sato F, Ono T, Umeno H. Glycolytic activity of the tissue stem cells in the macula flava of the human vocal fold. Laryngoscope Investig Otolaryngol 2021; 6:122-128. [PMID: 33614940 PMCID: PMC7883606 DOI: 10.1002/lio2.525] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/11/2020] [Accepted: 01/15/2021] [Indexed: 02/01/2023] Open
Abstract
OBJECTIVES In our previous studies, the features of the mitochondria of tissue stem cells in the maculae flavae of the human vocal fold suggested that their metabolic activity and oxidative phosphorylation was low. This study investigated the metabolic activity, especially glycolysis of the tissue stem cells in the maculae flavae of the human adult vocal fold. STUDY DESIGN Histologic analysis of the human vocal folds. METHODS Three normal human adult vocal folds obtained from autopsy cases were investigated using immunohistochemistry. RESULTS Among the three phenotypes of cells in the human adult maculae flavae, the vocal fold stellate cell-like cells strongly expressed glucose transporter-1. Three phenotypes of cells in the human adult maculae flavae expressed glycolytic enzymes (hexokinase II, glyceraldehyde-3-phosphate dehydrogenase and lactate dehydrogenase A) indicating the tissue stem cells in the maculae flavae relied more on glycolysis. The cells did not express phosphofructokinase-1 but did express glucose-6-phosphate dehydrogenase indicating the cells relied more on the pentose phosphate pathway. The cells expressed lactate dehydrogenase A indicating the maculae flavae of the human adult vocal fold was likely to be an anaerobic microenvironment. CONCLUSIONS The present study is consistent with the hypothesis that the tissue stem cells in the maculae flavae of the human vocal fold seem to rely more on anaerobic glycolysis, especially by the pentose phosphate pathway, for energy supply. The metabolism of the tissue stem cells in the maculae flavae of the human adult vocal fold is likely to prevent toxic reaction oxygen species and be favorable to maintaining the stemness and undifferentiated states of the tissue stem cells in the stem cells system. LEVEL OF EVIDENCE NA.
Collapse
Affiliation(s)
- Kiminori Sato
- Department of Otolaryngology‐Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Shun‐ichi Chitose
- Department of Otolaryngology‐Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Kiminobu Sato
- Department of Otolaryngology‐Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Fumihiko Sato
- Department of Otolaryngology‐Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Takeharu Ono
- Department of Otolaryngology‐Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Hirohito Umeno
- Department of Otolaryngology‐Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| |
Collapse
|
7
|
Sato K, Chitose S, Sato F, Sato K, Ono T, Umeno H. Heterogeneity and hierarchy of the tissue stem cells in the human newborn vocal fold mucosa. Laryngoscope Investig Otolaryngol 2020; 5:903-910. [PMID: 33134538 PMCID: PMC7585242 DOI: 10.1002/lio2.470] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 08/21/2020] [Accepted: 09/18/2020] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES There is growing evidence that the cells in the maculae flavae (MFe) are tissue stem cells and the MFe are a stem cell niche of the human vocal fold mucosa. Heterogeneity and hierarchy of tissue stem cells in the MFe of newborn vocal fold were investigated in vivo. STUDY DESIGN Histologic analysis of the human vocal folds. METHODS Five normal human newborn vocal folds were investigated under transmission electron microscopy and light microscopy. RESULTS Cobblestone-like polygonal cells, vocal fold stellate cell-like cells, and fibroblast-like spindle cells were intermingled in the newborn MFe in vivo, indicating that the cells in the MFe had heterogeneity. However, cobblestone-like polygonal cells were predominant. Free ribosomes were well developed in the cytoplasm. The cells in some cases formed gap junctions with each other. The cells in some cases were attached to other cells and formed cell junctions with each other. These findings indicated cells in the newborn maculae flavae possessed features of mesenchymal cells (cells in mesenchyme). Colony-forming-unit-like cell aggregate was observed, indicating the cells in the newborn MFe had stemness. The cobblestone-like polygonal cells expressed SSEA-3 (a human pluripotent stem cell marker), indicating they were at the top of a cellular hierarchy in the stem cell system. CONCLUSIONS The cells in the MFe of the human newborn vocal fold mucosa had heterogeneity and hierarchy in the stem cell system in vivo. At birth, newborn maculae flavae are ready to start the growth of the vocal fold mucosa as a vibrating tissue.
Collapse
Affiliation(s)
- Kiminori Sato
- Department of Otolaryngology—Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Shun‐ichi Chitose
- Department of Otolaryngology—Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Fumihiko Sato
- Department of Otolaryngology—Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Kiminobu Sato
- Department of Otolaryngology—Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Takeharu Ono
- Department of Otolaryngology—Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Hirohito Umeno
- Department of Otolaryngology—Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| |
Collapse
|
8
|
Sato K, Chitose S, Sato K, Sato F, Kurita T, Umeno H. Metabolic activity of cells in the macula flava of the human vocal fold from the aspect of mitochondrial microstructure. Laryngoscope Investig Otolaryngol 2019; 4:405-409. [PMID: 31453349 PMCID: PMC6703107 DOI: 10.1002/lio2.285] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 05/28/2019] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES There is growing evidence to suggest that the cells in the maculae flavae of the vocal fold mucosa are tissue stem cells of the human vocal fold. This study investigated the metabolic activity of the cells in the maculae flavae of the human vocal fold from the aspect of mitochondrial microstructure. STUDY DESIGN Histologic analysis of the human vocal folds. METHODS Five normal human adult vocal folds obtained from autopsy cases were investigated under transmission electron microscopy. RESULTS Mitochondria were randomly distributed in the cytoplasm of the cells. The morphological features of the mitochondria consisted of a double-membrane-bounded body containing matrices and a system of cristae. In each mitochondria, the lamellar cristae were sparse. The intercristal space was occupied by a mitochondrial matrix which contained electron-dense matrix granules, mitochondrial DNA, and ribonucleoprotein granules. Some mitochondria spread out over or fused to the surface of a lipid droplet in the cytoplasm. In addition, both the mitochondrial outer and inner membranes and the membranes of the lipid droplets had disappeared. Some close association between mitochondria and rough endoplasmic reticulum was present. CONCLUSIONS The features of the mitochondria of the cells in the maculae flavae of the human vocal fold suggested that their metabolic activity and oxidative phosphorylation were low and that they may have shifted to the utilization of lipids to some extent for their metabolic needs. LEVEL OF EVIDENCE NA.
Collapse
Affiliation(s)
- Kiminori Sato
- Department of Otolaryngology–Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Shun‐Ichi Chitose
- Department of Otolaryngology–Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Kiminobu Sato
- Department of Otolaryngology–Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Fumihiko Sato
- Department of Otolaryngology–Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Takashi Kurita
- Department of Otolaryngology–Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| | - Hirohito Umeno
- Department of Otolaryngology–Head and Neck SurgeryKurume University School of MedicineKurumeJapan
| |
Collapse
|
9
|
Barui A, Datta P. Biophysical factors in the regulation of asymmetric division of stem cells. Biol Rev Camb Philos Soc 2018; 94:810-827. [PMID: 30467934 DOI: 10.1111/brv.12479] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 10/14/2018] [Accepted: 10/18/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Ananya Barui
- Centre for Healthcare Science and TechnologyIndian Institute of Engineering Science and Technology, Shibpur Howrah West Bengal 711103 India
| | - Pallab Datta
- Centre for Healthcare Science and TechnologyIndian Institute of Engineering Science and Technology, Shibpur Howrah West Bengal 711103 India
| |
Collapse
|
10
|
Silva WN, Prazeres PHDM, Paiva AE, Lousado L, Turquetti AOM, Barreto RSN, de Alvarenga EC, Miglino MA, Gonçalves R, Mintz A, Birbrair A. Macrophage-derived GPNMB accelerates skin healing. Exp Dermatol 2018; 27:630-635. [PMID: 29505115 PMCID: PMC6013359 DOI: 10.1111/exd.13524] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2018] [Indexed: 12/22/2022]
Abstract
Healing is a vital response important for the re-establishment of the skin integrity following injury. Delayed or aberrant dermal wound healing leads to morbidity in patients. The development of therapies to improve dermal healing would be useful. Currently, the design of efficient treatments is stalled by the lack of detailed knowledge about the cellular and molecular mechanisms involved in wound healing. Recently, using state-of-the-art technologies, it was revealed that macrophages signal via GPNMB to mesenchymal stem cells, accelerating skin healing. Strikingly, transplantation of macrophages expressing GPNMB improves skin healing in GPNMB-mutant mice. Additionally, topical treatment with recombinant GPNMB restored mesenchymal stem cells recruitment and accelerated wound closure in the diabetic skin. From a drug development perspective, this GPNMB is a new candidate for skin healing.
Collapse
Affiliation(s)
- Walison N. Silva
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Ana E. Paiva
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Luiza Lousado
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Anaelise O. M. Turquetti
- Anatomy of Domestic and Wild Animals Program, Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP, Brazil
| | - Rodrigo S. N. Barreto
- Anatomy of Domestic and Wild Animals Program, Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP, Brazil
| | - Erika Costa de Alvarenga
- Department of Natural Sciences, Federal University of São João del Rei, São João Del Rey, MG, Brazil
| | - Maria A. Miglino
- Anatomy of Domestic and Wild Animals Program, Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP, Brazil
| | - Ricardo Gonçalves
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, NY, USA
| | - Alexander Birbrair
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
- Anatomy of Domestic and Wild Animals Program, Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP, Brazil
| |
Collapse
|