biostudies-literatureBessi BWConselho Nacional de Desenvolvimento Científico e TecnológicoCoordenação de Aperfeiçoamento de Pessoal de Nível SuperiorFundação de Amparo à Pesquisa do Estado de São Paulo1531https://www.ebi.ac.uk/biostudies/studies/S-EPMC8234940biostudies-literatureUnknown10(6)The event of cellular reprogramming into pluripotency is influenced by several factors, such as in vitro culture conditions (e.g., culture medium and oxygen concentration). Herein, bovine iPSCs (biPSCs) were generated in different levels of oxygen tension (5% or 20% of oxygen) and supplementation (bFGF or bFGF + LIF + 2i-bFL2i) to evaluate the efficiency of pluripotency induction and maintenance in vitro. Initial reprogramming was observed in all groups and bFL2i supplementation initially resulted in a superior number of colonies. However, bFL2i supplementation in low oxygen led to a loss of self-renewal and pluripotency maintenance. All clonal lines were positive for alkaline phosphatase; they expressed endogenous pluripotency-related genes <i>SOX2</i>, <i>OCT4</i> and <i>STELLA</i>. HoweCellsCattle In Vitro Induced Pluripotent Stem Cells Generated and Maintained in 5 or 20% Oxygen and Different Supplementation.PMC82349400012013/08135-223038.006964/2014-432012/50533-22016/16841-22015/26818-5433133/2018-02017-6162019/10751-0Nogueira MFGBotigelli RCde Moraes PPieri NCGCruz JBde Souza AFBessi BWBarbosa GBressan FFRecchia Kde Castro RVGMachado LSfalseCattle In Vitro Induced Pluripotent Stem Cells Generated and Maintained in 5 or 20% Oxygen and Different Supplementation.The event of cellular reprogramming into pluripotency is influenced by several factors, such as in vitro culture conditions (e.g., culture medium and oxygen concentration). Herein, bovine iPSCs (biPSCs) were generated in different levels of oxygen tension (5% or 20% of oxygen) and supplementation (bFGF or bFGF + LIF + 2i-bFL2i) to evaluate the efficiency of pluripotency induction and maintenance in vitro. Initial reprogramming was observed in all groups and bFL2i supplementation initially resulted in a superior number of colonies. However, bFL2i supplementation in low oxygen led to a loss of self-renewal and pluripotency maintenance. All clonal lines were positive for alkaline phosphatase; they expressed endogenous pluripotency-related genes <i>SOX2</i>, <i>OCT4</i> and <i>STELLA</i>. Howe2021-01-01T00:00:00Z2021 Jun2026-04-08T09:18:18.066Z2022-02-10T18:59:34.475ZS-EPMC82349403420451710.3390/cells10061531