Exploring the enkephalinergic differentiation potential in adult stem cells for cell therapy and drug screening implications.
Stem cell therapy is one of the most promising treatments in neuroregenerative medicine. Considering the role of the endogenous opioid system in controlling the pathophysiology of neurological disorders and behavioral aberrations, current studies have focused on enkephalins as a part of the opioid system. Due to high capability of unrestricted somatic stem cells (USSCs) and human mesenchymal stem cells (hMSCs) for cell therapy and transplantation; here, we examined their enkephalinergic differentiation potential through Ikaros-related pathways in order to develop in vitro models to help drug screening and stem cell therapy for the opioid-related disorders. The authenticity of the stem cells was verified by differentiation experiments along with flow cytometry for surface markers. Later, we confirmed their neurogenic differentiation with semiquantitative and quantitative transcriptional and translational evaluations of the enkephalinergic-related genes such as proenkephalin, CREBZF, Ikaros, and prodynorphin. Our findings supported the enkephalinergic differentiation of these stem cells. Noteworthy, USSCs showed higher potential for differentiating into enkephalinergic neurons under Ikaros activation than hMSCs, which makes them appropriate for neurological therapeutic applications. In conclusion, this study suggests a powerful in vitro model for neurogenesis that may help clarification of enkephalinergic differentiation and related signaling networks along with neural drug screening. Such investigations may be beneficial to ameliorate the neural-related therapeutic approaches.
Stem Cell Biology Department, Stem Cell Technology Research Center, Tehran, Iran.
Maryam
M
Hafizi
Behnaz
B
Bakhshandeh
Masoud
M
Soleimani
Amir
A
Atashi
D050976:Basic-Leucine Zipper Transcription Factors / Q000235:genetics / Q000378:metabolism; D015415:Biomarkers / Q000378:metabolism; D004353:Drug Evaluation, Preclinical; D004399:Dynorphins / Q000378:metabolism*; D004745:Enkephalins / Q000235:genetics / Q000378:metabolism*; D005434:Flow Cytometry; D006801:Humans; D051740:Ikaros Transcription Factor / Q000235:genetics / Q000378:metabolism / Q000502:physiology; D045164:Mesenchymal Stem Cell Transplantation; D059630:Mesenchymal Stem Cells / Q000166:cytology / Q000378:metabolism; D055495:Neurogenesis; D009474:Neurons / Q000166:cytology* / Q000378:metabolism; D011498:Protein Precursors / Q000235:genetics / Q000378:metabolism*; D015398:Signal Transduction; D033581:Stem Cell Transplantation; D013234:Stem Cells / Q000166:cytology* / Q000378:metabolism
D050976:Basic-Leucine Zipper Transcription Factors; D015415:Biomarkers; C411104:CREBZF protein, human; D004745:Enkephalins; D011498:Protein Precursors; C029992:proenkephalin; D051740:Ikaros Transcription Factor; D004399:Dynorphins