Probing Wnt pathway and functional signal in equine melanocytic neoplasms through quantitative proteomics and immunohistochemistry

Abstract Background Equine melanocytic neoplasm (EMN) is a skin tumor commonly observed in grey horses. Limited research has yet to investigate proteomic profiles of EMN, particularly in the early stages and their expression patterns. This study, therefore, aimed to identify signature proteins from...

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Main Authors: Parichart Tesena, Ruethaiwan Vinijkumthorn, Amornthep Kingkaw, Petchpailin Yanyongsirikarn, Khajornpol Phasuk, Sekkarin Ploypetch, Narumon Phaonakrop, Sittiruk Roytrakul, Wanwipa Vongsangnak, Nawarus Prapaiwan
Format: Article
Language:English
Published: BMC 2025-08-01
Series:BMC Veterinary Research
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Online Access:https://doi.org/10.1186/s12917-025-04956-w
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author Parichart Tesena
Ruethaiwan Vinijkumthorn
Amornthep Kingkaw
Petchpailin Yanyongsirikarn
Khajornpol Phasuk
Sekkarin Ploypetch
Narumon Phaonakrop
Sittiruk Roytrakul
Wanwipa Vongsangnak
Nawarus Prapaiwan
author_facet Parichart Tesena
Ruethaiwan Vinijkumthorn
Amornthep Kingkaw
Petchpailin Yanyongsirikarn
Khajornpol Phasuk
Sekkarin Ploypetch
Narumon Phaonakrop
Sittiruk Roytrakul
Wanwipa Vongsangnak
Nawarus Prapaiwan
author_sort Parichart Tesena
collection DOAJ
description Abstract Background Equine melanocytic neoplasm (EMN) is a skin tumor commonly observed in grey horses. Limited research has yet to investigate proteomic profiles of EMN, particularly in the early stages and their expression patterns. This study, therefore, aimed to identify signature proteins from tissue biopsies to distinguish early EMN, severe EMN, and normal groups. Results Using proteomic analysis of 19 tissue samples (normal: n = 6, early EMN: n = 7, severe EMN: n = 6) through LC–MS/MS, 12,310 proteins were identified. Differentially expressed proteins (DEPs) and functional interaction analysis revealed significant overexpression of Wnt signature proteins, e.g., canonical (Wnt2B) and non-canonical (Wnt5B) Wnt signaling in early EMN stages. Immunohistochemical staining (IHC) towards immunolocalizing Wnt signature protein, particularly the Wnt2B functional signal, further verified its higher expression in early EMN compared to other groups. Conclusions These findings suggest that the Wnt pathway and functional insight are key mediators in signal transduction during early EMN, offering potential markers for initial stage detection. This study enhances the understanding of EMN mechanisms and the role of Wnt proteins, with implications for developing future diagnostic and therapeutic strategies.
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spelling doaj-art-8dfcf8f7c13a41bab0f36bce53f624192025-08-20T03:45:57ZengBMCBMC Veterinary Research1746-61482025-08-0121111810.1186/s12917-025-04956-wProbing Wnt pathway and functional signal in equine melanocytic neoplasms through quantitative proteomics and immunohistochemistryParichart Tesena0Ruethaiwan Vinijkumthorn1Amornthep Kingkaw2Petchpailin Yanyongsirikarn3Khajornpol Phasuk4Sekkarin Ploypetch5Narumon Phaonakrop6Sittiruk Roytrakul7Wanwipa Vongsangnak8Nawarus Prapaiwan9Department of Clinical Science and Public Health, Faculty of Veterinary Science, Mahidol UniversityDepartment of Clinical Science and Public Health, Faculty of Veterinary Science, Mahidol UniversityFaculty of Science, Interdisciplinary Graduate Program in Bioscience, Kasetsart UniversityFaculty of Veterinary Science, Equine Clinic, Prasuarthon Small Animal Hospital, Mahidol UniversityVeterinary Medicine Disposal and Animal Husbandry, Sub-Division Patrol Special Operation Division, Mounted Police Sub-DivisionDepartment of Clinical Science and Public Health, Faculty of Veterinary Science, Mahidol UniversityFunctional Proteomics Technology Laboratory, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development AgencyFunctional Proteomics Technology Laboratory, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development AgencyDepartment of Zoology, Faculty of Science, Kasetsart UniversityDepartment of Clinical Science and Public Health, Faculty of Veterinary Science, Mahidol UniversityAbstract Background Equine melanocytic neoplasm (EMN) is a skin tumor commonly observed in grey horses. Limited research has yet to investigate proteomic profiles of EMN, particularly in the early stages and their expression patterns. This study, therefore, aimed to identify signature proteins from tissue biopsies to distinguish early EMN, severe EMN, and normal groups. Results Using proteomic analysis of 19 tissue samples (normal: n = 6, early EMN: n = 7, severe EMN: n = 6) through LC–MS/MS, 12,310 proteins were identified. Differentially expressed proteins (DEPs) and functional interaction analysis revealed significant overexpression of Wnt signature proteins, e.g., canonical (Wnt2B) and non-canonical (Wnt5B) Wnt signaling in early EMN stages. Immunohistochemical staining (IHC) towards immunolocalizing Wnt signature protein, particularly the Wnt2B functional signal, further verified its higher expression in early EMN compared to other groups. Conclusions These findings suggest that the Wnt pathway and functional insight are key mediators in signal transduction during early EMN, offering potential markers for initial stage detection. This study enhances the understanding of EMN mechanisms and the role of Wnt proteins, with implications for developing future diagnostic and therapeutic strategies.https://doi.org/10.1186/s12917-025-04956-wEquine melanocytic neoplasmGrey horsesImmunohistochemistryProteomicsWnt pathway
spellingShingle Parichart Tesena
Ruethaiwan Vinijkumthorn
Amornthep Kingkaw
Petchpailin Yanyongsirikarn
Khajornpol Phasuk
Sekkarin Ploypetch
Narumon Phaonakrop
Sittiruk Roytrakul
Wanwipa Vongsangnak
Nawarus Prapaiwan
Probing Wnt pathway and functional signal in equine melanocytic neoplasms through quantitative proteomics and immunohistochemistry
BMC Veterinary Research
Equine melanocytic neoplasm
Grey horses
Immunohistochemistry
Proteomics
Wnt pathway
title Probing Wnt pathway and functional signal in equine melanocytic neoplasms through quantitative proteomics and immunohistochemistry
title_full Probing Wnt pathway and functional signal in equine melanocytic neoplasms through quantitative proteomics and immunohistochemistry
title_fullStr Probing Wnt pathway and functional signal in equine melanocytic neoplasms through quantitative proteomics and immunohistochemistry
title_full_unstemmed Probing Wnt pathway and functional signal in equine melanocytic neoplasms through quantitative proteomics and immunohistochemistry
title_short Probing Wnt pathway and functional signal in equine melanocytic neoplasms through quantitative proteomics and immunohistochemistry
title_sort probing wnt pathway and functional signal in equine melanocytic neoplasms through quantitative proteomics and immunohistochemistry
topic Equine melanocytic neoplasm
Grey horses
Immunohistochemistry
Proteomics
Wnt pathway
url https://doi.org/10.1186/s12917-025-04956-w
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