Abstract
In this study, we investigated the significance of the stem cell transcription factor PLOD2 in esophageal cancer to enhance our understanding of its occurrence, development, recurrence, metastasis, and potential treatment. We conducted the following experiments: (1) Immunohistochemistry revealed elevated PLOD2 protein levels in esophageal carcinoma compared to adjacent tissues, with higher levels associated with advanced disease stages and lower differentiation. (2) Immunofluorescence demonstrated increased PLOD2 expression in esophageal cancer cell lines TE-1 and Eca- 109, suggesting a connection to cell differentiation. (3) We successfully transfected fluorescently labeled PLOD2 siRNA into cells, achieving a transfection rate of 67.57% and silencing efficiency exceeding 80%. (4) Following transfection, we observed a decreased proliferation rate in PLOD2 siRNA-treated cells, indicating that PLOD2 reduction can slow esophageal cancer growth. These findings emphasize that PLOD2 plays a crucial role in esophageal cancer pathogenesis, particularly in low cell differentiation maintenance. It could serve as a promising target for inducing differentiation in esophageal cancer and evaluating its malignancy. The high PLOD2 expression in esophageal cancer cell lines suggests the presence of tumor stem cells. Moreover, reducing PLOD2 through RNAi technology slows cell proliferation, suggesting that inhibiting PLOD2 may offer a potential therapeutic approach for esophageal cancer treatment.
Published Version
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