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RISS 인기검색어
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- 저자 : TongYi Jin (검색결과 3 건)
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Vitamin D receptor (VDR) mRNA overexpression is associated with poor prognosis in breast carcinoma
Sang Eun Nam,TongYi Jin,Kyoung Sik Park,Madhuri Saindane,Woo Chul Noh,Young Bum Yoo,Won Seo Park,Ik Jin Yun 대한외과학회 2022 Annals of Surgical Treatment and Research(ASRT) Vol.103 No.4
Purpose: The prognostic value of vitamin D receptor gene (VDR) expression in breast cancer development is unclear. Here, we aimed to investigate whether VDR expression can be used as a prognostic indicator of breast cancer. Methods: We used various public bioinformatics platforms: Oncomine, GEPIA, UALCAN, Kaplan-Meier plotter, UCSC XENA, bc-GenExMiner, WebGestalt, and STRING database. Results: We found that VDR was upregulated in breast cancer in comparison to normal tissues. Overexpression of VDR was significantly associated with worse overall survival in breast cancer. The expression of VDR was related to age, TNM stages, estrogen receptor status, progesterone receptor status, human epidermal growth factor receptor 2 status, basallike (PAM 50) status, triple-negative breast cancer (TNBC) status, and basal-like (PAM 50) & TNBC status (P < 0.05). Increased VDR expression in breast cancer was significantly associated with older age. The 5 hub genes for VDR were NCOA1, EP300, CREBBP, and RXRA. Conclusion: Our investigation offers hints about the prognostic role of VDR in breast cancer. The findings suggest that VDR expression might be used as a marker to determine a breast cancer patient’s prognosis. Nevertheless, further validation is warranted.
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Overexpression of PRAT1 protein is closely related to triple-negative breast cancer
Sang Eun Nam,Young-Sin Ko,Kyoung Sik Park,TongYi Jin,Young-Bum Yoo,Jung-Hyun Yang,Wook-Youn Kim,Hye-Seung Han,So-Dug Lim,Seung Eun Lee,Wan-Seop Kim 대한외과학회 2022 Annals of Surgical Treatment and Research(ASRT) Vol.103 No.2
Purpose: Triple-negative breast cancer (TNBC) is an aggressive subtype of breast cancer with a poor prognosis and a lack of targeted therapy. Overexpression of PRAT1 is thought to be associated with this aggressive subtype of cancer. Here, we performed a comprehensive analysis and assessed the association between overexpression of PRAT1 and TNBC. Methods: First, using different web-based bioinformatics platforms (TIMER 2.0, UALCAN, and GEPIA 2), the expression of was assessed. Then, the expression of the PRAT1 protein and hormone receptors and HER2 status were assessed by immunohistochemical analysis. For samples of tumors with equivocal immunoreactivity, we performed silver in situ hybridization of the HER2 gene to determine an accurate HER2 status. Next, we used the R package and bc-GenExMiner 4.8 to analyze the relationship between PRAT1 expression and clinicopathological parameters in breast cancer patients. Finally, we determined the relationship between PRAT1 overexpression and prognosis in patients. Results: The expression of PRAT1 in breast cancer tissues is significantly higher than in normal tissue. PRAT1 expression was significantly related to worse overall survival (P < 0.05) and was correlated with these clinicopathological features: T stage, N stage, age, high histologic grade, estrogen receptor status, progesterone receptor status, Her-2 status, TNBC status, basal-like status, CK5/6 status, and Ki67 status. Conclusion: PRAT1 was overexpressed in breast cancer compared to normal tissue, and it may be involved in the progression of breast cancer malignancy. This study provides suggestive evidence of the prognostic role of PRAT1 in breast cancer and the therapeutic target for TNBC.
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Selective inhibition of V600E-mutant BRAF gene induces apoptosis in thyroid carcinoma cell lines
Kyoung Sik Park,Madhuri Saindane,Eun Yeol Yang,TongYi Jin,Harikrishna Reddy Rallabandi,Alexander Heil,Sang Eun Nam,Young Bum Yoo,Jung-Hyun Yang,Jong Bin Kim,Seo-Young Park,Won Seo Park,Yeo-Kyu Youn 대한외과학회 2021 Annals of Surgical Treatment and Research(ASRT) Vol.100 No.3
Purpose: Papillary thyroid cancer (PTC) has a high incidence of BRAF<SUP>V600E</SUP> mutation. The purpose of this study was to evaluate the potential relationship between thyroiditis and BRAF<SUP>V600E</SUP> mutation status in patients with PTC. We investigated how a selective inhibitor of BRAF<SUP>V600E</SUP> PLX4032 affects the proliferation and inflammatory cytokine levels of thyroid cancer. Methods: Two thyroid cancer cell lines TPC1 and 8505C were treated with PLX4032, an analysis was done on cell growth, cell cycle, the degree of apoptosis, and levels of inflammatory cytokines. To identify the functional links of BRAF, we used the STRING database. Results: Docking results illustrated PLX4032 blocked the kinase activity by exclusively binding on the serine/threonine kinase domain. STRING results indicated BRAF is functionally linked to mitogen-activated protein kinase. Both cell lines showed a dose-dependent reduction in growth rate but had a different half maximal inhibitory concentration value for PLX4032. The reaction to PLX4032 was more sensitive in the 8505C cells than in the TPC1 cells. PLX4032 induced a G2/M phase arrest in the TPC1 cells and G0/G1 in the 8505C cells. PLX4032 induced apoptosis only in the 8505C cells. With PLX4032, the TPC1 cells showed decreased levels of vascular endothelial growth factor, granulocyte-macrophage colony-stimulating factor, chemokine (C-C motif) ligand 2/monocyte chemoattractant protein 1, whereas the 8505C cells showed significantly decreased levels of IL-8, serpin E1/plasminogen activator inhibitor-1, and matrix metalloproteinase (MMP)-3. Conclusion: PLX4032 was cytotoxic in both TPC1 and 8505C cells and induced apoptosis. In the 8505C cells, inflammatory cytokines such as IL-8 and MMP-3 were down-regulated. These findings suggest the possibility that the BRAF<SUP>V600E</SUP> mutation needs to target inflammatory signaling pathways in the treatment of thyroid cancer.
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