Publications by authors named "Ki Ryung Choi"

Purpose: To assess the possible negative health effects of human bone marrow-derived mesenchymal stem cells (hBMSCs) on fertility and early embryonic development following intracavernous injections in rats.

Materials And Methods: A total of 88 Crl:CD(SD) male and female rats were equally divided into 4 groups in a random manner: control group (normal saline), low-dose group (2×10 hBMSCs), moderate-dose group (1×10 hBMSCs), and high-dose group (2×10 hBMSCs). hBMSCs or normal saline was injected into the penis of the rats 3 times at 2-week-intervals prior to mating.

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Human bone marrow-derived mesenchymal stem cells (hBM-MSCs) have been studied for their therapeutic potential. However, evaluating the quality of hBM-MSCs before transplantation remains a challenge. We addressed this issue in the present study by investigating deformation, the expression of genes related to reactive oxygen species (ROS) generation, changes in amino acid profiles, and membrane fluidity in hBM-MSCs.

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Many cancer types are serious diseases causing mortality, and new therapeutics with improved efficacy and safety are required. Immuno-(cell)-therapy is considered as one of the promising therapeutic strategies for curing intractable cancer. In this study, we tested R2016, a newly developed heterocyclic quinone derivative, for induction of immunogenic tumor cell death and as a possible novel immunochemotherapeutic.

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Background Aims: Although clinical studies using stem cells to treat erectile dysfunction have been performed or are ongoing, there is little consensus on the optimal protocol. We aimed to develop a protocol optimizing human bone marrow-derived mesenchymal stromal cell (hBMSC) therapy in a rat model of cavernous nerve injury.

Methods: We performed, in order, a dose-finding study, a toxicokinetic study of hBMSCs, and a study to determine the timing and number of cell injections.

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Cancer is one of the leading causes of morbidity and mortality worldwide; therefore there is a need to discover new therapeutic modules with improved efficacy and safety. Immune-(cell) therapy is a promising therapeutic strategy for the treatment of intractable cancers. The effectiveness of certain chemotherapeutics in inducing immunogenic tumor cell death thus promoting cancer eradication has been reported.

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