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Tang YC, Ponsin K, Graham-Paquin AL, Luthold C, Homsy K, Schindler M, Tran V, Côté JF, Bordeleau F, Khadra A, Bouchard M. Coordination of non-professional efferocytosis and actomyosin contractility during epithelial tissue morphogenesis. Cell Rep 2023; 42:112202. [PMID: 36871220 DOI: 10.1016/j.celrep.2023.112202] [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: 07/28/2021] [Revised: 10/27/2022] [Accepted: 02/15/2023] [Indexed: 03/06/2023] Open
Abstract
In developing embryos, specific cell populations are often removed to remodel tissue architecture for organogenesis. During urinary tract development, an epithelial duct called the common nephric duct (CND) gets shortened and eventually eliminated to remodel the entry point of the ureter into the bladder. Here we show that non-professional efferocytosis (the process in which epithelial cells engulf apoptotic bodies) is the main mechanism that contributes to CND shortening. Combining biological metrics and computational modeling, we show that efferocytosis with actomyosin contractility are essential factors that drive the CND shortening without compromising the ureter-bladder structural connection. The disruption of either apoptosis, non-professional efferocytosis, or actomyosin results in contractile tension reduction and deficient CND shortening. Actomyosin activity helps to maintain tissue architecture while non-professional efferocytosis removes cellular volume. Together our results demonstrate that non-professional efferocytosis with actomyosin contractility are important morphogenetic factors controlling CND morphogenesis.
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Affiliation(s)
- You Chi Tang
- Rosalind and Morris Goodman Cancer Research Institute and Department of Biochemistry, McGill University, Montreal, QC H3A 1A3, Canada.
| | - Khoren Ponsin
- Department of Physiology and Department of Mathematics, McGill University, Montreal, QC H3A 1Y6, Canada
| | - Adda-Lee Graham-Paquin
- Rosalind and Morris Goodman Cancer Research Institute and Department of Biochemistry, McGill University, Montreal, QC H3A 1A3, Canada
| | - Carole Luthold
- CHU de Québec-Université Laval Research Center (Oncology Division), Université Laval Cancer Research Center and Faculty of Medicine, Université Laval, Quebec City, QC G1R 3S3, Canada
| | - Kevin Homsy
- CHU de Québec-Université Laval Research Center (Oncology Division), Université Laval Cancer Research Center and Faculty of Medicine, Université Laval, Quebec City, QC G1R 3S3, Canada
| | - Magdalena Schindler
- Rosalind and Morris Goodman Cancer Research Institute and Department of Biochemistry, McGill University, Montreal, QC H3A 1A3, Canada
| | - Viviane Tran
- Montreal Clinical Research Institute (IRCM), Montréal, QC H2W 1R7, Canada
| | - Jean-François Côté
- Montreal Clinical Research Institute (IRCM), Montréal, QC H2W 1R7, Canada
| | - François Bordeleau
- CHU de Québec-Université Laval Research Center (Oncology Division), Université Laval Cancer Research Center and Faculty of Medicine, Université Laval, Quebec City, QC G1R 3S3, Canada
| | - Anmar Khadra
- Department of Physiology and Department of Mathematics, McGill University, Montreal, QC H3A 1Y6, Canada
| | - Maxime Bouchard
- Rosalind and Morris Goodman Cancer Research Institute and Department of Biochemistry, McGill University, Montreal, QC H3A 1A3, Canada
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Junga A, Siņicins I, Pētersons A, Pilmane M. Evaluation of PGP 9.5, NGFR, TGFβ1, FGFR1, MMP-2, AT2R2, SHH, and TUNEL in Primary Obstructive Megaureter Tissue. J Histochem Cytochem 2022; 70:139-149. [PMID: 34915763 PMCID: PMC8777373 DOI: 10.1369/00221554211063515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Primary obstructive megaureter (POM) morphogenesis is not fully known. The aim of the study was to evaluate the appearance of different factors that might take part in the pathogenesis of POM. Megaureter tissues of 14 children were stained with hematoxylin and eosin as well as with immunohistochemistry for protein gene product 9.5, nerve growth factor receptor, transforming growth factor beta 1 (TGFβ1), fibroblast growth factor receptor 1 (FGFR1), matrix metalloproteinase 2 (MMP-2), angiotensin 2 receptor type 2, and sonic hedgehog (SHH) protein. Apoptosis was detected by terminal dUTP nick-end labeling reaction. POM tissues revealed transitional epithelium with scattered vacuolization, submucosa with inflammatory cells, and focally vacuolized and chaotically organized muscle layers. Apoptosis, appearance of MMP-2, FGFR1, and SHH prevailed, but TGFβ1 positive cell number was lower in patients. Correlation between MMP-2 in epithelium and endothelium, FGFR1 and MMP-2 in epithelium, and TGFβ1 in epithelium and connective tissue in patients was detected. POM morphopathogenesis involves an apoptotic cell death of epithelium and smooth muscle as well as tissue degradation in epithelium and connective tissue of the ureter wall. The decrease of tissue growth through diminished TGFβ1 expression and stimulation of FGFR1 and MMP-2 suggests a disbalance of tissue remodelation in the megaureter wall.
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Affiliation(s)
- Anna Junga
- Anna Junga, Institute of Anatomy and
Anthropology, Riga Stradins University, Kronvalda bulv 9, Riga LV-1010, Latvia.
E-mail:
| | - Ivo Siņicins
- Institute of Anatomy and Anthropology, Riga
Stradins University, Riga, Latvia
| | - Aigars Pētersons
- Department of Children Surgery, Riga Stradins
University, Riga, Latvia
| | - Māra Pilmane
- Institute of Anatomy and Anthropology, Riga
Stradins University, Riga, Latvia
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3
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Adhikari UK, Sakiz E, Habiba U, Mikhael M, Senesi M, David MA, Guillemin GJ, Ooi L, Karl T, Collins S, Tayebi M. Treatment of microglia with Anti-PrP monoclonal antibodies induces neuronal apoptosis in vitro. Heliyon 2021; 7:e08644. [PMID: 35005289 PMCID: PMC8715334 DOI: 10.1016/j.heliyon.2021.e08644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/23/2021] [Accepted: 12/16/2021] [Indexed: 11/04/2022] Open
Abstract
Previous reports highlighted the neurotoxic effects caused by some motif-specific anti-PrPC antibodies in vivo and in vitro. In the current study, we investigated the detailed alterations of the proteome with liquid chromatography–mass spectrometry following direct application of anti-PrPC antibodies on mouse neuroblastoma cells (N2a) and mouse primary neuronal (MPN) cells or by cross-linking microglial PrPC with anti-PrPC antibodies prior to co-culture with the N2a/MPN cells. Here, we identified 4 (3 upregulated and 1 downregulated) and 17 (11 upregulated and 6 downregulated) neuronal apoptosis-related proteins following treatment of the N2a and N11 cell lines respectively when compared with untreated cells. In contrast, we identified 1 (upregulated) and 4 (2 upregulated and 2 downregulated) neuronal apoptosis-related proteins following treatment of MPN cells and N11 when compared with untreated cells. Furthermore, we also identified 3 (2 upregulated and 1 downregulated) and 2 (1 upregulated and 1 downregulated) neuronal apoptosis-related related proteins following treatment of MPN cells and N11 when compared to treatment with an anti-PrP antibody that lacks binding specificity for mouse PrP. The apoptotic effect of the anti-PrP antibodies was confirmed with flow cytometry following labelling of Annexin V-FITC. The toxic effects of the anti-PrP antibodies was more intense when antibody-treated N11 were co-cultured with the N2a and the identified apoptosis proteome was shown to be part of the PrPC-interactome. Our observations provide a new insight into the prominent role played by microglia in causing neurotoxic effects following treatment with anti-PrPC antibodies and might be relevant to explain the antibody mediated toxicity observed in other related neurodegenerative diseases such as Alzheimer. Antibody cross-linking neuronal PrPC induces apoptosis. Antibody cross-linking microglial PrPC induces neuronal apoptosis. Different apoptotic pathways were triggered by specific anti-PrP antibody treatments.
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Roux M, Bouchard M, Kmita M. Multifaceted Hoxa13 function in urogenital development underlies the Hand-Foot-Genital Syndrome. Hum Mol Genet 2020; 28:1671-1681. [PMID: 30649340 DOI: 10.1093/hmg/ddz013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/14/2018] [Accepted: 01/08/2019] [Indexed: 02/05/2023] Open
Abstract
Hand-Foot-Genital syndrome is a rare condition caused by mutations in the HOXA13 gene and characterized by limb malformations and urogenital defects. While the role of Hoxa13 in limb development has been extensively studied, its function during the development of the urogenital system remains elusive mostly due to the embryonic lethality of Hoxa13 homozygous mutant mice. Using a conditional inactivation strategy, we show that mouse fetuses lacking Hoxa13 function develop megaureters, hydronephrosis and malformations of the uterus, reminiscent of the defects characterizing patients with Hand-Foot-Genital syndrome. Our analysis reveals that Hoxa13 plays a critical role in Müllerian ducts fusion and in ureter remodeling by regulating the elimination of the caudal common nephric duct, eventually preventing the separation from the nephric duct. Our data also reveal a specific role for Hoxa13 in the urogenital sinus, which is in part mediated by Gata3, as well as Hoxa13 requirement for the proper organization of the ureter. Finally, we provide evidence that Hoxa13 provides positional and temporal cues during the development of the lower urogenital system, a sine qua non condition for the proper function of the urinary system.
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Affiliation(s)
- Marine Roux
- Genetics and Development Research Unit, Institut de Recherches Cliniques de Montréal, Montreal, Quebec, Canada
| | - Maxime Bouchard
- Goodman Cancer Research Centre and Department of Biochemistry, McGill University, Montreal, Quebec, Canada
| | - Marie Kmita
- Genetics and Development Research Unit, Institut de Recherches Cliniques de Montréal, Montreal, Quebec, Canada.,Department of Experimental Medicine, McGill University, Montreal, Quebec, Canada.,Département de Médecine (Programme de Biologie Moléculaire), Université de Montréal, Montreal, Quebec, Canada
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Zhang Y, Zhang X, Wang X, Wang H, Wu X, Xu H, Shen Q. Gen1 Modulates Metanephric Morphology Through Retinoic Acid Signaling. DNA Cell Biol 2019; 38:263-271. [PMID: 30632787 DOI: 10.1089/dna.2018.4426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Congenital anomalies of the kidney and urinary tract (CAKUT) are the leading cause of end-stage renal disease in children. Our group has discovered that Holliday Junction resolvase gene Gen1 is a potential candidate gene for CAKUT. Gen1 mutant mice showed CAKUT phenotypes similar to those observed in retinoic acid (RA)-deficient models. The expression of Raldh2, which encodes the key enzyme in RA synthesis, was reduced in Gen1 mutant metanephros through RNA sequencing. By real-time reverse transcription-PCR, the expression of both Raldh2 and downstream Ret was reduced in embryonic day (E) 11.5 Gen1 mutant ureters and E13.5 kidneys, and expression of RA receptor alpha was decreased in E13.5 Gen1 mutant ureters and kidneys. Further studies showed that all-trans retinoic acid (ATRA) rescued solitary kidney phenotype and improved ureteric branching; ATRA should be administered after ureteric budding to avoid increasing the incidence of ectopic budding in Gen1 mutants. Luciferase intensity of RA response element was lower in CHO-K1 cells transfected with Gen1 siRNA than in those transfected with scrambled RNA, and this inhibitory effect could be reversed by ATRA. These findings indicate that Gen1 mutation can result in renal malformation through RA signaling and Gen1-loss-induced CAKUT can be partly rescued by ATRA.
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Affiliation(s)
- Ya Zhang
- 1 Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Xin Zhang
- 1 Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Xiaowen Wang
- 2 Department of Nephrology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Herui Wang
- 3 Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Xiaohui Wu
- 1 Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China.,4 State Key Laboratory of Genetic Engineering and National Center for International Research of Development and Disease, Institute of Developmental Biology and Molecular Medicine, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Hong Xu
- 1 Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Qian Shen
- 1 Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
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