Publications by authors named "Xiaokai Bi"

Long intergenic nonprotein coding RNA 649 (LINC00649) is a functional regulator in acute myeloid leukaemia. However, the contribution of LINC00649 in colorectal cancer (CRC) has yet to be confirmed. Accordingly, the present investigation was devoted to exploring the detailed functions of LINC00649 and reveal the mechanisms underlying the LINC00649‑induced promotion of CRC progression.

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Objective: To analyze the clinical manifestations and imaging characteristics of pulmonary and extra pulmonary paragonimiasis westermani.

Methods: A retrospective analysis was performed of 30 patients diagnosed by clinical features, laboratory serological tests and surgical pathology.

Results: The symptoms of the lung included mainly chest distress, fever, chest pain, cough and expectoration, and dyspnea.

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Objective: To investigate the correlations of aldehyde dehydrogenase 1 (ALDH1) expression with the molecular subtypes and ATP-binding cassette subfamily G member 2 (ABCG2) in breast cancer.

Methods: The specimens from 179 cases of breast cancer were divided into five molecular subtypes according to the immunological markers (ER, PR, HER2 and CK5/6), which were luminal A, luminal B, Her2-enriched, basal-like and breast-like subtype, respectively. The expressions of ALDH1 and ABCG2 of the specimens were detected with immunohistochemical staining, and the relationship between them as well as their relations with the clinicopathological factors of breast cancer was analyzed.

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Cancer stem cells (CSCs) are predicted to be critical drivers of tumor progression due to their "stemness", but the molecular mechanism of CSCs in regulating metastasis remains to be elucidated. Epithelial-mesenchymal transition (EMT), hypoxia-inducible factor (HIF)-1α, and miR-21, all of which contribute to cell migration for metastasis, are interrelated with CSCs. In the present study, third-sphere forming (3-S) CSC-like cells, which showed elevated CSC surface markers (ALDH1(+) and CD44(+)/CD24(-/low)) and sphereforming capacity as well as migration and invasion capacities, were cultured and isolated from breast cancer MCF-7 parental cells, to evaluate the role of miR-21 in regulating the CSC-like cell biological features, especially EMT.

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Article Synopsis
  • MiR-21 is crucial in breast cancer progression, influencing cell migration and invasion through mechanisms like epithelial-mesenchymal transition (EMT) and cancer stem cell (CSC) characteristics.
  • Research established a breast cancer cell line (MCF-7/miR-21) that showed increased growth, migration, and self-renewal abilities due to miR-21 re-expression.
  • The study found that miR-21 re-expression leads to EMT changes in cell markers and boosts CSC traits, indicating its role in enhancing tumor aggressiveness and potential relapse in breast cancer.
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