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Boretto M, Geurts MH, Gandhi S, Ma Z, Staliarova N, Celotti M, Lim S, He GW, Millen R, Driehuis E, Begthel H, Smabers L, Roodhart J, van Es J, Wu W, Clevers H. Epidermal growth factor receptor (EGFR) is a target of the tumor-suppressor E3 ligase FBXW7. Proc Natl Acad Sci U S A 2024; 121:e2309902121. [PMID: 38483988 PMCID: PMC10962967 DOI: 10.1073/pnas.2309902121] [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: 06/12/2023] [Accepted: 01/08/2024] [Indexed: 03/19/2024] Open
Abstract
FBXW7 is an E3 ubiquitin ligase that targets proteins for proteasome-mediated degradation and is mutated in various cancer types. Here, we use CRISPR base editors to introduce different FBXW7 hotspot mutations in human colon organoids. Functionally, FBXW7 mutation reduces EGF dependency of organoid growth by ~10,000-fold. Combined transcriptomic and proteomic analyses revealed increased EGFR protein stability in FBXW7 mutants. Two distinct phosphodegron motifs reside in the cytoplasmic tail of EGFR. Mutations in these phosphodegron motifs occur in human cancer. CRISPR-mediated disruption of the phosphodegron motif at T693 reduced EGFR degradation and EGF growth factor dependency. FBXW7 mutant organoids showed reduced sensitivity to EGFR-MAPK inhibitors. These observations were further strengthened in CRC-derived organoid lines and validated in a cohort of patients treated with panitumumab. Our data imply that FBXW7 mutations reduce EGF dependency by disabling EGFR turnover.
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Affiliation(s)
- Matteo Boretto
- Organoid group, Oncode Institute, Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences and University Medical Center, 3584CTUtrecht, the Netherlands
| | - Maarten H. Geurts
- Organoid group, Oncode Institute, Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences and University Medical Center, 3584CTUtrecht, the Netherlands
| | - Shashank Gandhi
- Organoid group, Oncode Institute, Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences and University Medical Center, 3584CTUtrecht, the Netherlands
- Department of Molecular and Cellular Biology, Miller Institute for Basic Research in Science, University of California, Berkeley, CA94720
| | - Ziliang Ma
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore138648, Singapore
- Department of Pharmacy, National University of Singapore, Singapore117543, Singapore
- Department of Biomolecular Mass Spectrometry and Proteomics, Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CHUtrecht, the Netherlands
| | - Nadzeya Staliarova
- Department of Biomolecular Mass Spectrometry and Proteomics, Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CHUtrecht, the Netherlands
| | - Martina Celotti
- Organoid group, Oncode Institute, Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences and University Medical Center, 3584CTUtrecht, the Netherlands
| | - Sangho Lim
- Organoid group, Oncode Institute, Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences and University Medical Center, 3584CTUtrecht, the Netherlands
| | - Gui-Wei He
- Organoid group, Oncode Institute, Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences and University Medical Center, 3584CTUtrecht, the Netherlands
| | - Rosemary Millen
- Organoid group, Oncode Institute, Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences and University Medical Center, 3584CTUtrecht, the Netherlands
| | - Else Driehuis
- Organoid group, Oncode Institute, Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences and University Medical Center, 3584CTUtrecht, the Netherlands
| | - Harry Begthel
- Organoid group, Oncode Institute, Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences and University Medical Center, 3584CTUtrecht, the Netherlands
| | - Lidwien Smabers
- Department of Medical Oncology, University Medical Center Utrecht, 3584 CXUtrecht, the Netherlands
| | - Jeanine Roodhart
- Department of Medical Oncology, University Medical Center Utrecht, 3584 CXUtrecht, the Netherlands
| | - Johan van Es
- Organoid group, Oncode Institute, Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences and University Medical Center, 3584CTUtrecht, the Netherlands
| | - Wei Wu
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore138648, Singapore
- Department of Pharmacy, National University of Singapore, Singapore117543, Singapore
- Department of Biomolecular Mass Spectrometry and Proteomics, Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CHUtrecht, the Netherlands
| | - Hans Clevers
- Organoid group, Oncode Institute, Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences and University Medical Center, 3584CTUtrecht, the Netherlands
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Wu M, Mu C, Yang H, Wang Y, Ma P, Li S, Wang Z, Lan T. 8-Br-cGMP suppresses tumor progression through EGFR/PLC γ1 pathway in epithelial ovarian cancer. Mol Biol Rep 2024; 51:140. [PMID: 38236447 DOI: 10.1007/s11033-023-09037-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 11/28/2023] [Indexed: 01/19/2024]
Abstract
BACKGROUND Cyclic guanosine monophosphate (cGMP)-dependent protein kinase I (PKG-I), a serine/threonine kinase, is important in tumor development. The present study determines that the cGMP/PKG I pathway is essential for promoting cell proliferation and survival in human ovarian cancer cells, whereas cGMP analog has been shown to lead to growth inhibition and apoptosis of various cancer cells. The role of cGMP/PKG I pathway in epithelial ovarian cancer (EOC), therefore, remains controversial. We investigated the effect of cGMP/PKG I pathway and the underlying mechanism in EOC. METHODS AND RESULTS The results showed that exogenous 8-Bromoguanosine-3', 5'-cyclic monophosphate (8-Br-cGMP) (cGMP analog) could antagonize the effects by EGF, including suppressing proliferation, invasion and migration of EOC cells. In vivo, 8-Br-cGMP hampered the growth of the xenograft tumor. Additionally, the expressions of epidermal growth factor receptor (EGFR), matrix metallopeptidase 9 (MMP9), proliferating cell nuclear antigen and Ki67 in xenograft tumor were decreased after 8-Br-cGMP intervention. Further research demonstrated that 8-Br-cGMP decreased the phosphorylation of EGFR (Y992) and downstream proteins phospholipase Cγ1 (PLC γ1) (Y783), calmodulin kinase II (T286) and inhibited cytoplasmic Ca2+ release as well as PKC transferring to cell membrane. It's worth noting that the inhibition was 8-Br-cGMP dose-dependent and 8-Br-cGMP showed similar inhibitory effect on EOC cells compared with U-73122, a specific inhibitor of PLC γ1. CONCLUSIONS The activation of endogenous PKG I by addition of exogenous 8-Br-cGMP could inhibit EOC development probably via EGFR/PLCγ1 signaling pathway. 8-Br-cGMP/PKG I provide a new insight and strategy for EOC treatment.
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Affiliation(s)
- Min Wu
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu, China
- Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Chunyan Mu
- Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou Medical University, Xuzhou, Jiangsu, China
- School of Medical Technology, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, People's Republic of China
| | - Huiwen Yang
- Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou Medical University, Xuzhou, Jiangsu, China
- School of Medical Technology, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, People's Republic of China
| | - Yue Wang
- Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou Medical University, Xuzhou, Jiangsu, China
- School of Medical Technology, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, People's Republic of China
| | - Ping Ma
- Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou Medical University, Xuzhou, Jiangsu, China
- School of Medical Technology, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, People's Republic of China
- Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Shibao Li
- Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou Medical University, Xuzhou, Jiangsu, China
- School of Medical Technology, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, People's Republic of China
- Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Zhongcheng Wang
- Department of Pathophysiology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, People's Republic of China.
| | - Ting Lan
- Xuzhou Key Laboratory of Laboratory Diagnostics, Xuzhou Medical University, Xuzhou, Jiangsu, China.
- School of Medical Technology, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, People's Republic of China.
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Feng S, Sanford JA, Weber T, Hutchinson-Bunch CM, Dakup PP, Paurus VL, Attah K, Sauro HM, Qian WJ, Wiley HS. A Phosphoproteomics Data Resource for Systems-level Modeling of Kinase Signaling Networks. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.03.551714. [PMID: 37577496 PMCID: PMC10418157 DOI: 10.1101/2023.08.03.551714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Building mechanistic models of kinase-driven signaling pathways requires quantitative measurements of protein phosphorylation across physiologically relevant conditions, but this is rarely done because of the insensitivity of traditional technologies. By using a multiplexed deep phosphoproteome profiling workflow, we were able to generate a deep phosphoproteomics dataset of the EGFR-MAPK pathway in non-transformed MCF10A cells across physiological ligand concentrations with a time resolution of <12 min and in the presence and absence of multiple kinase inhibitors. An improved phosphosite mapping technique allowed us to reliably identify >46,000 phosphorylation sites on >6600 proteins, of which >4500 sites from 2110 proteins displayed a >2-fold increase in phosphorylation in response to EGF. This data was then placed into a cellular context by linking it to 15 previously published protein databases. We found that our results were consistent with much, but not all previously reported data regarding the activation and negative feedback phosphorylation of core EGFR-ERK pathway proteins. We also found that EGFR signaling is biphasic with substrates downstream of RAS/MAPK activation showing a maximum response at <3ng/ml EGF while direct substrates, such as HGS and STAT5B, showing no saturation. We found that RAS activation is mediated by at least 3 parallel pathways, two of which depend on PTPN11. There appears to be an approximately 4-minute delay in pathway activation at the step between RAS and RAF, but subsequent pathway phosphorylation was extremely rapid. Approximately 80 proteins showed a >2-fold increase in phosphorylation across all experiments and these proteins had a significantly higher median number of phosphorylation sites (~18) relative to total cellular phosphoproteins (~4). Over 60% of EGF-stimulated phosphoproteins were downstream of MAPK and included mediators of cellular processes such as gene transcription, transport, signal transduction and cytoskeletal arrangement. Their phosphorylation was either linear with respect to MAPK activation or biphasic, corresponding to the biphasic signaling seen at the level of the EGFR. This deep, integrated phosphoproteomics data resource should be useful in building mechanistic models of EGFR and MAPK signaling and for understanding how downstream responses are regulated.
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Affiliation(s)
- Song Feng
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352 USA
| | - James A. Sanford
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352 USA
| | - Thomas Weber
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352 USA
| | | | - Panshak P. Dakup
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352 USA
| | - Vanessa L. Paurus
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352 USA
| | - Kwame Attah
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352 USA
| | - Herbert M. Sauro
- Department of Bioengineering, University of Washington, Seattle, WA
| | - Wei-Jun Qian
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352 USA
| | - H. Steven Wiley
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99352 USA
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Alessandro SD, Paradiso E, Lazzaretti C, Sperduti S, Perri C, Antoniani F, Righi S, Simoni M, Brigante G, Casarini L. Intracellular cGMP increase is not involved in thyroid cancer cell death. PLoS One 2023; 18:e0283888. [PMID: 36996255 PMCID: PMC10062617 DOI: 10.1371/journal.pone.0283888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 03/20/2023] [Indexed: 04/01/2023] Open
Abstract
INTRODUCTION Type 5 phosphodiesterase (PDE5) inhibitors (PDE5i) lead to intracellular cyclic-guanosine monophosphate (cGMP) increase and are used for clinical treatment of erectile dysfunction. Studies found that cGMP may up/downregulate the growth of certain endocrine tumor cells, suggesting that PDE5i could impact cancer risk. AIM We evaluated if PDE5i may modulate thyroid cancer cell growth in vitro. MATERIALS AND METHODS We used malignant (K1) and benign (Nthy-ori 3-1) thyroid cell lines, as well as the COS7 cells as a reference model. Cells were treated 0-24 h with the PDE5i vardenafil or the cGMP analog 8-br-cGMP (nM-μM range). cGMP levels and caspase 3 cleavage were evaluated by BRET, in cGMP or caspase 3 biosensor-expressing cells. Phosphorylation of the proliferation-associated extracellularly-regulated kinases 1 and 2 (ERK1/2) was evaluated by Western blotting, while nuclear fragmentation by DAPI staining. Cell viability was investigated using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. RESULTS Both vardenafil and 8-br-cGMP effectively induced dose-dependent cGMP BRET signals (p≤0.05) in all the cell lines. However, no differences in caspase 3 activation occurred comparing PDE5i-treated vs untreated cells, at all concentrations and time-points tested (p>0.05). These results match those obtained upon cell treatment with 8-br-cGMP, which failed in inducing caspase 3 cleavage in all the cell lines (p>0.05). Moreover, they reflect the lack of nuclear fragmentation. Interestingly, the modulation of intracellular cGMP levels with vardenafil or the analog did not impact cell viability of both malignant and benign thyroid tumor cell lines, nor the phosphorylation of ERK1/2 (p>0.05). CONCLUSIONS This study demonstrates that increased cGMP levels are not linked to cell viability or death in K1 and Nthy-ori 3-1 cell lines, suggesting that PDE5i do not impact the growth of thyroid cancer cells. Since different results were previously published, further investigations are recommended to clarify the impact of PDE5i on thyroid cancer cells.
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Affiliation(s)
- Sara D' Alessandro
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
- International PhD School in Clinical and Experimental Medicine (CEM), University of Modena and Reggio Emilia, Modena, Italy
| | - Elia Paradiso
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Clara Lazzaretti
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Samantha Sperduti
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
- Center for Genomic Research, University of Modena and Reggio Emilia, Modena, Italy
| | - Carmela Perri
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Francesco Antoniani
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Sara Righi
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Manuela Simoni
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
- Center for Genomic Research, University of Modena and Reggio Emilia, Modena, Italy
- Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria di Modena, Modena, Italy
| | - Giulia Brigante
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
- Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria di Modena, Modena, Italy
| | - Livio Casarini
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
- Center for Genomic Research, University of Modena and Reggio Emilia, Modena, Italy
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Barrón-Gallardo CA, Garcia-Chagollán M, Morán-Mendoza AJ, Delgadillo-Cristerna R, Martínez-Silva MG, Villaseñor-García MM, Aguilar-Lemarroy A, Jave-Suárez LF. A gene expression signature in HER2+ breast cancer patients related to neoadjuvant chemotherapy resistance, overall survival, and disease-free survival. Front Genet 2022; 13:991706. [PMID: 36338974 PMCID: PMC9634254 DOI: 10.3389/fgene.2022.991706] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 10/11/2022] [Indexed: 11/27/2022] Open
Abstract
Breast cancer ranks first in terms of mortality and incidence rates worldwide among women. The HER2+ molecular subtype is one of the most aggressive subtypes; its treatment includes neoadjuvant chemotherapy and the use of a HER2 antibody. Some patients develop resistance despite positive results obtained using this therapeutic strategy. Objective. To identify prognostic markers for treatment and survival in HER2+ patients. Methods. Patients treated with neoadjuvant chemotherapy were assigned to sensitive and resistant groups based on their treatment response. Differentially expressed genes (DEGs) were identified using RNA-seq analysis. KEGG pathway, gene ontology, and interactome analyses were performed for all DEGs. An enrichment analysis Gene set enrichment analysis was performed. All DEGs were analyzed for overall (OS) and disease-free survival (DFS). Results. A total of 94 DEGs were related to treatment resistance. Survival analysis showed that 12 genes (ATF6B, DHRS13, DIRAS1, ERAL1, GRIN2B, L1CAM, IRX3, PRTFDC1, PBX2, S100B, SLC9A3R2, and TNXB) were good predictors of disease-free survival, and eight genes (GNG4, IL22RA2, MICA, S100B, SERPINF2, HLA-A, DIRAS1, and TNXB) were good predictors of overall survival (OS). Conclusion: We highlighted a molecular expression signature that can differentiate the treatment response, overall survival, and DFS of patients with HER2+ breast cancer.
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Affiliation(s)
- Carlos A. Barrón-Gallardo
- Programa de Doctorado en Ciencias Biomédicas, Centro Universitario de Ciencias de La Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - Mariel Garcia-Chagollán
- Instituto de Investigación en Ciencias Biomédicas (IICB), Centro Universitario de Ciencias de La Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - Andres J. Morán-Mendoza
- Hospital de Ginecología, Centro Médico Nacional de Occidente, Instituto Mexicano Del Seguro Social (IMSS), Guadalajara, Mexico
| | - Raul Delgadillo-Cristerna
- Departamento de Radiología e Imagen, Centro Médico Nacional de Occidente, Instituto Mexicano Del Seguro Social (IMSS), Guadalajara, Mexico
| | - María G. Martínez-Silva
- Departamento de Anatomía Patológica, Centro Médico Nacional de Occidente, Instituto Mexicano Del Seguro Social (IMSS), Guadalajara, Mexico
| | - María M. Villaseñor-García
- División de Inmunología, Centro de Investigación Biomédica de Occidente, Instituto Mexicano Del Seguro Social (IMSS), Guadalajara, Mexico
| | - Adriana Aguilar-Lemarroy
- División de Inmunología, Centro de Investigación Biomédica de Occidente, Instituto Mexicano Del Seguro Social (IMSS), Guadalajara, Mexico
- *Correspondence: Adriana Aguilar-Lemarroy, ; Luis F. Jave-Suárez,
| | - Luis F. Jave-Suárez
- División de Inmunología, Centro de Investigación Biomédica de Occidente, Instituto Mexicano Del Seguro Social (IMSS), Guadalajara, Mexico
- *Correspondence: Adriana Aguilar-Lemarroy, ; Luis F. Jave-Suárez,
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Pang J, Li G, Qian H, Wu Y, Chen Y. Secretory PKG II blocks activation of PDGFRβ via Ser254 in gastric cancer cells. Cell Biol Int 2022; 46:747-754. [PMID: 35066967 PMCID: PMC9305209 DOI: 10.1002/cbin.11766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/28/2021] [Accepted: 01/08/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Ji Pang
- Department of Physiology, School of Medicine, Jiangsu UniversityZhenjiang CityJiangsu Province212013People's Republic of China
| | - Guorui Li
- Department of Physiology, School of Medicine, Jiangsu UniversityZhenjiang CityJiangsu Province212013People's Republic of China
| | - Hai Qian
- Department of Physiology, School of Medicine, Jiangsu UniversityZhenjiang CityJiangsu Province212013People's Republic of China
| | - Yan Wu
- Department of Physiology, School of Medicine, Jiangsu UniversityZhenjiang CityJiangsu Province212013People's Republic of China
| | - Yongchang Chen
- Department of Physiology, School of Medicine, Jiangsu UniversityZhenjiang CityJiangsu Province212013People's Republic of China
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7
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Mertz JL, Sripathi SR, Yang X, Chen L, Esumi N, Zhang H, Zack DJ. Proteomic and phosphoproteomic analyses identify liver-related signaling in retinal pigment epithelial cells during EMT. Cell Rep 2021; 37:109866. [PMID: 34686321 DOI: 10.1016/j.celrep.2021.109866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/03/2021] [Accepted: 09/30/2021] [Indexed: 02/06/2023] Open
Abstract
Epithelial-mesenchymal transition (EMT) of the retinal pigment epithelium (RPE) is associated with several blinding retinal diseases. Using proteomics and phosphoproteomics studies of human induced pluripotent stem cell-derived RPE monolayers with induced EMT, we capture kinase/phosphatase signaling cascades 1 h and 12 h after induction to better understand the pathways mediating RPE EMT. Induction by co-treatment with transforming growth factor β and tumor necrosis factor alpha (TGNF) or enzymatic dissociation perturbs signaling in many of the same pathways, with striking similarity in the respective phosphoproteomes at 1 h. Liver hyperplasia and hepatocyte growth factor (HGF)-MET signaling exhibit the highest overall enrichment. We also observe that HGF and epidermal growth factor signaling, two cooperative pathways inhibited by EMT induction, regulate the RPE transcriptional profile.
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Affiliation(s)
- Joseph L Mertz
- Department of Ophthalmology, Stem Cell Ocular Regenerative Medicine Center, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
| | - Srinivasa R Sripathi
- Department of Ophthalmology, Stem Cell Ocular Regenerative Medicine Center, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Xue Yang
- Department of Ophthalmology, Stem Cell Ocular Regenerative Medicine Center, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Lijun Chen
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Noriko Esumi
- Department of Ophthalmology, Stem Cell Ocular Regenerative Medicine Center, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Hui Zhang
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Donald J Zack
- Department of Ophthalmology, Stem Cell Ocular Regenerative Medicine Center, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; Department of Molecular Biology and Genetics, Department of Genetic Medicine, Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
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