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Matrix metalloproteinase-2 delivery to extracellular vesicles produced by HPV-positive cervical cancer cells enhances metastasis via the Akt pathway
Cell Biol Int. 2023 Jun 5. doi: 10.1002/cbin.12054. Online ahead of print.ABSTRACTHere, we aimed to analyze the effects of matrix metalloproteinase-2 (MMP-2) delivery to extracellular vesicles (EVs) secreted by human papillomavirus (HPV)-associated cervical cancer cells on human umbilical vein endothelial cell (HUVEC) angiogenesis. First, MMP-2 expression was compared among SiHa (HPV16), HeLa (HPV18), and C-33A (negative) cells. Then, EVs were isolated from these cells, and MMP-2 expression in the EVs was compared. SiHa and HeLa cells were transfected with MMP-2 or control siRNA. HUVECs were treated with EVs isolating from...
Source: Cell Biology International - June 5, 2023 Category: Cytology Authors: Jianan Sun Junjun Mou Yunmei Zhang Kang Yuan Ying Yang Qing Tang Source Type: research

HPV E6 promotes cell proliferation of cervical cancer cell by accelerating accumulation of RBM15 dependently of autophagy inhibition
This study explored the role of methyltransferase components in HPV-related cervical cancer and the mechanism. The levels of methyltransferase components and autophagy, ubiquitylation of RBM15 protein and the co-localization of lysosomal markers LAMP2A and RBM15 were measured. CCK-8 assay, flow cytometry, clone formation experiment and immunofluorescence assay were conducted to measure cell proliferation. The mouse tumor model was developed to study the cell growth in vivo. The binding of RBM15 to c-myc mRNA and m6A modifcation of c-myc mRNA were analyzed. The expressions of METTL3, RBM15 and WTAP were higher in HPV-positi...
Source: Cell Biology International - May 16, 2023 Category: Cytology Authors: Gang Nie Bo Tang Mingfen Lv Danyang Li Tian Li Rongying Ou Yunsheng Xu Juan Wen Source Type: research

Significance of Oct-4 transcription factor as a pivotal therapeutic target for CD44 < sup > + < /sup > /24 < sup > - < /sup > mammary tumor initiating cells:  Aiming at the root of the recurrence
In this study, we have attempted to identify previously unrecognized CSC survival factors that can be used as druggable targets for bCSCs apoptosis regulators isolated from the TNBC line, MDA MB 468. After a thorough literature review, Oct-4 was identified as the most promising marker for its unique abundance in cancer and absence in normal cells and the contribution of Oct-4 to the sustenance of cancer cells. We then validated a very high expression of Oct-4 in the MDA MB 468 bCSCs population using flow-cytometry. The loss of Oct-4 was carried out using small interfering RNA (siRNA)-mediated knockdown in the bCSCs, follow...
Source: Cell Biology International - December 27, 2022 Category: Cytology Authors: Utsav Sen Shanooja Shanavas Apoorva H Nagendra Muhammad Nihad Debajit Chaudhury Hari K Rachamalla Rajkumar Banerjee Sudheer Shenoy P Bipasha Bose Source Type: research

Calycosin suppresses colorectal cancer progression by targeting ER β, upregulating PTEN, and inhibiting PI3K/Akt signal pathway
In this study, we analyzed the effect of calycosin on the viability and apoptosis of human CRC HCT116 and SW480 cells via MTT assay, flow cytometry assay, and caspase-3/7 activity assay. The protein expressions of estrogen receptor β (ERβ), PTEN, and PI3K/Akt signal pathways were determined by Western blot analysis. And then, the alterations of biological behavior in CRC cells transfected with ERβ siRNA were analyzed. Mouse xenograft models were further performed to detect the antitumor effect in vivo. The results show that calycosin reduces CRC cell viability, induces cell apoptosis, and suppresses xenograft tumor grow...
Source: Cell Biology International - July 17, 2022 Category: Cytology Authors: Lin Zhu Sha Liu Yi-Fan Liao Yan-Mei Sheng Ji-Chun He Zheng-Xue Cai Qiong Man Yi-Ying Wu Source Type: research

ANKHD1 contributes to the malignant phenotype of triple-negative breast cancer cells
Cell Biol Int. 2022 Jul 16. doi: 10.1002/cbin.11844. Online ahead of print.ABSTRACTAnkyrin repeat and KH domain-containing protein 1, ANKHD1, has been identified as a regulator of signaling pathways and cellular processes of relevance in carcinogenesis. However, the role of ANKHD1 in breast cancer remains unclear. The aim of the present study was to characterize the expression pattern and involvement of ANKHD1 in the malignant phenotype of breast cancer cell lines and to investigate the clinical relevance of ANKHD1 in a breast cancer context. Gene and protein expressions were assessed in the cell lines by quantitative reve...
Source: Cell Biology International - July 17, 2022 Category: Cytology Authors: Bruna O de Almeida Larissa C de Almeida Leticia V Costa-Lotufo Jo ão A Machado-Neto Source Type: research

Calycosin suppresses colorectal cancer progression by targeting ER β, upregulating PTEN, and inhibiting PI3K/Akt signal pathway
In this study, we analyzed the effect of calycosin on the viability and apoptosis of human CRC HCT116 and SW480 cells via MTT assay, flow cytometry assay, and caspase-3/7 activity assay. The protein expressions of estrogen receptor β (ERβ), PTEN, and PI3K/Akt signal pathways were determined by Western blot analysis. And then, the alterations of biological behavior in CRC cells transfected with ERβ siRNA were analyzed. Mouse xenograft models were further performed to detect the antitumor effect in vivo. The results show that calycosin reduces CRC cell viability, induces cell apoptosis, and suppresses xenograft tumor grow...
Source: Cell Biology International - July 17, 2022 Category: Cytology Authors: Lin Zhu Sha Liu Yi-Fan Liao Yan-Mei Sheng Ji-Chun He Zheng-Xue Cai Qiong Man Yi-Ying Wu Source Type: research

ANKHD1 contributes to the malignant phenotype of triple-negative breast cancer cells
Cell Biol Int. 2022 Jul 16. doi: 10.1002/cbin.11844. Online ahead of print.ABSTRACTAnkyrin repeat and KH domain-containing protein 1, ANKHD1, has been identified as a regulator of signaling pathways and cellular processes of relevance in carcinogenesis. However, the role of ANKHD1 in breast cancer remains unclear. The aim of the present study was to characterize the expression pattern and involvement of ANKHD1 in the malignant phenotype of breast cancer cell lines and to investigate the clinical relevance of ANKHD1 in a breast cancer context. Gene and protein expressions were assessed in the cell lines by quantitative reve...
Source: Cell Biology International - July 17, 2022 Category: Cytology Authors: Bruna O de Almeida Larissa C de Almeida Leticia V Costa-Lotufo Jo ão A Machado-Neto Source Type: research

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