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Open AccessArticle

Comprehensive Proteomics Analysis of In Vitro Canine Oviductal Cell-Derived Extracellular Vesicles

by 1,*,†, 1,† and 2,3,4,*
1
Center for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, CA 94143, USA
2
Department of Physiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
3
Department of Animal Production, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia
4
King Faisal Specialist Hospital & Research Centre, Department of Comparative Medicine, Riyadh 11211, Saudi Arabia
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editors: Monica De Los Reyes and Nucharin Songsasen
Animals 2021, 11(2), 573; https://doi.org/10.3390/ani11020573
Received: 30 November 2020 / Revised: 25 January 2021 / Accepted: 26 January 2021 / Published: 23 February 2021
(This article belongs to the Special Issue New Insights in Canine Reproduction)
As the dog shows unique and peculiar reproductive characteristics, assisted reproductive techniques such as in vitro maturation and in vitro fertilization have not been well-established compared with those of other mammals. Our recent work demonstrated the interplay between in vitro oviductal cell-derived extracellular vesicles (OC-EVs) and cumulus-oocyte complexes in dogs. Here, we provided for the first time a comprehensive proteomic analysis of OC-EVs. A total of 398 proteins were identified in all OC-EVs samples. A functional enrichment analysis indicated that these core proteins were involved in the key cellular metabolic process related to oocyte maturation and embryonic development. The current comprehensive description of the canine OC-EVs proteome would provide a fundamental resource for further understanding canine reproductive physiology, the interaction of sperms with female counterparts during fertilization, early pregnancy, and establishing an efficient system of in vitro embryo production.
Dogs (Canis lupus familiaris) have unique and peculiar reproductive characteristics. While the interplay between in vitro oviductal cell-derived extracellular vesicles (OC-EVs) and cumulus-oocyte complexes in dogs has begun to be elucidated, no study has yet provided extensive information on the biological content and physiological function of OC-EVs and their role in canine oocyte development. Here, we aimed to provide the first comprehensive proteomic analysis of OC-EVs. We identified 398 proteins as present in all OC-EVs samples. The functional enrichment analysis using Gene Ontology terms and an Ingenuity Pathway Analysis revealed that the identified proteins were involved in several cellular metabolic processes, including translation, synthesis, expression, and protein metabolism. Notably, the proteins were also involved in critical canonical pathways with essential functions in oocyte and embryo development, such as ERK/MAPK, EIF2, PI3K/AKT, and mTOR signaling. These data would be an important resource for studying canine reproductive physiology and establishing a successful in vitro embryo production system in dogs. View Full-Text
Keywords: canine oviduct; exosomes; extracellular vesicles; proteomics canine oviduct; exosomes; extracellular vesicles; proteomics
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MDPI and ACS Style

Lee, S.H.; Lira-Albarrán, S.; Saadeldin, I.M. Comprehensive Proteomics Analysis of In Vitro Canine Oviductal Cell-Derived Extracellular Vesicles. Animals 2021, 11, 573. https://doi.org/10.3390/ani11020573

AMA Style

Lee SH, Lira-Albarrán S, Saadeldin IM. Comprehensive Proteomics Analysis of In Vitro Canine Oviductal Cell-Derived Extracellular Vesicles. Animals. 2021; 11(2):573. https://doi.org/10.3390/ani11020573

Chicago/Turabian Style

Lee, Seok H.; Lira-Albarrán, Saúl; Saadeldin, Islam M 2021. "Comprehensive Proteomics Analysis of In Vitro Canine Oviductal Cell-Derived Extracellular Vesicles" Animals 11, no. 2: 573. https://doi.org/10.3390/ani11020573

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