Generation of allogenic chimera carrying mutations in PDX1 and TP53 genes via phytohemagglutinin-mediated blastomere aggregation in pigs

TV Nguyen, K Takebayashi, LTK Do, Z Namula… - In Vitro Cellular & …, 2024 - Springer
The generation of genetically engineered pig models that develop pancreas-specific tumors
has the potential to advance studies and our understanding of pancreatic cancer in humans …

Slow freezing cryopreservation of Korean bovine blastocysts with an additional sucrose pre-equilibration step

S Jung, H Sul, D Oh, YG Jung, J Lee… - Frontiers in Veterinary …, 2024 - frontiersin.org
Introduction Embryo cryopreservation is a valuable technique used for preserving genetic
resources for long periods. However, the survival rate of embryos is dependent on the …

GRP78 acts as a cAMP/PKA signaling modulator through the MC4R pathway in porcine embryonic development

G Heo, SH Lee, JD Kim, GH Lee, JM Sim… - The FASEB …, 2023 - Wiley Online Library
Abstract Glucose‐regulated protein 78 (GRP78) binds to and stabilizes melanocortin 4
receptor (MC4R), which activates protein kinase A (PKA) by regulating G proteins. GRP78 is …

Optimization of embryonic stage for aggregation to generate chimeric pigs using gene-edited blastomeres

K Takebayashi, M Wittayarat, M Hirata, Q Lin… - In Vitro Cellular & …, 2024 - Springer
The high mortality rate and increasing incidence of cancer are major issues (Bray et al.
2018, Chowdhury et al. 2020). Pigs show anatomical/physiological characteristics to those …

Tetraploid embryo aggregation produces high-quality blastocysts with an increased trophectoderm in pigs

J Lee, L Cai, M Kim, H Choi, D Oh, A Jawad… - Frontiers in Cell and …, 2023 - frontiersin.org
Tetraploid complementation is an ideal method for demonstrating the differentiation potential
of pluripotent stem cells. In this study, we selected the most efficient tetraploid production …

Developmental competence of chimeric porcine embryos through the aggregation of parthenogenetic embryos and somatic cell nuclear transfer embryos

J Lee, L Cai, M Kim, H Choi, D Oh… - Korean Journal of …, 2023 - koreascience.kr
The efficiency of somatic cell nuclear transfer (NT) in pigs is low and requires enhancement.
We identified the most efficient method for zona pellucida (ZP) removal and blastomere …