LINC01023 Promotes the Hepatoblastoma Tumorigenesis via miR-378a-5p/WNT3 Axis.

Hepatoblastoma is the most common type of hepatic tumors occurring in children between 0 and 5 years. And the exact pathophysiology of the disease is still mysterious. Accumulating studies on LncRNA have shown its pivotal role in the development and progression of distinct human cancers. However, the role of LINC01023 in hepatoblastoma is unknown. The relative expression of LINC01023, miR-378a-5p, and Wnt3 on hepatoblastoma tissue and cell lines was determined by quantitative polymerase chain reaction (qRT-PCR). The effect of LINC01023 downregulation and upregulation on cell proliferation, colony formation and apoptosis activities in HUH6 and HepG2 Cells was assessed by CKK8, clonogenic and flow cytometry analysis, respectively. Dual luciferase, RNA immunoprecipitation (RIP), and RNA pull-down were performed to confirm the interaction between LINC01023 and miR-378a-5p. Similarly, Dual luciferase assay was performed to confirmed the interaction between Wnt3 and miR-378a-5p. The xenograft tumorgenicity test was performed to elucidate the tumorgenicity potential of LINC01023. LINC01023 was significantly upregulated in hepatoblastoma tissue and cell lines rather than in adjacent normal hepatic tissue and QSG7701 cell lines. LINC01023 silencing attenuated cell proliferation, colony formation and increased cell apoptosis. Conversely, LINC01023 upregulation results in significant increase in cell proliferation, and colony formation activities however, a significant reduction in apoptosis activity was reported. Interaction between the LINC01023 and WNT3 was confirmed by dual luciferase assay. Xenograft animal tumorgenicity test confirmed the in-vivo tumorigenesis potential of LINC01203. To the best of our knowledge, this study is the first study demonstrating the role of LINC01023 in hepatoblastoma tumorigenesis through the LINC01023/miR-378a-5p/Wnt3 axis. It could be a potential therapeutic target and a prognostic biomarker in hepatoblastoma.

Clinical and Histopathological Presentation of Abnormal Uterine Bleeding in Perimenopausal Women in Tertiary Center of Nepal.

BACKGROUND: Abnormal uterine bleeding is defined as any bleeding outside of normal menstruation pattern with excessive duration, frequency, and amount and it is a common problem among women of reproductive age group with varied presentations. The aim of the study was to correlate the histopathological finding in patients with abnormal dysfunctional uterine bleeding with the presenting clinical feature. METHODS: A prospective cross sectional study was carried out at Paropakar Maternity and Women's Hospital, Thapathali, Kathmandu during the period of one year (February 2019 to January 2020). It included 77 perimenopausal women with abnormal uterine bleeding who presented in gynecology outpatient department and planned for dilatation and curettage. Then the participants were counselled and informed consent was taken. Histopathological reports reviewed and analysis done. RESULTS: The most common age group of women presenting with abnormal uterine bleeding was 40 to 44 years and the commonest clinical feature was menorrhagia (31/77, 40.3%) followed by menometrorrhagia (18/77, 23.4%). Majority of women were multiparous, parity 3 to 4 (38/77, 49.4%). Proliferative endometrium (29/77, 37.7%) was most common histopathological findings followed by secretory endometrium (24/77, 31.2%). Proliferative endometrium was more commonly associated with menorrhagia and menometrorrhagia whereas secretory endometrium with metrorrhagia (P-value 0.000). CONCLUSIONS: Menorrhagia and Menometrorrhagia are the most common clinical presentation among perimenopausal women with AUB, whereas proliferative endometrium and secretory endometrium were the common histopathological findings respectively.Accurate diagnosis is crucial for a selection of relevant treatment and avoidance of unnecessary major surgical procedure.