MINJI PARK¹, CHULHWAN BANG², WON-SOO YUN³, YUN-MI JEONG^3,*

Oncology Research, Vol.32, No.2, pp. 273-282, 2024, DOI:10.32604/or.2023.044362

Abstract Fucoidan, a sulfate polysaccharide obtained from brown seaweed, has various bioactive properties, including anti-inflammatory, anti-cancer, anti-viral, anti-oxidant, anti-coagulant, anti-thrombotic, anti-angiogenic, and anti-Helicobacter pylori properties. However, the effects of low-molecular-weight fucoidan (LMW-F) on melanoma cell lines and three dimensional (3D) cell culture models are not well understood. This study aimed to investigate the effects of LMW-F on A375 human melanoma cells and cryopreserved biospecimens derived from patients with advanced melanoma. Ultrasonic wave was used to fragment fucoidan derived from Fucus vesiculosus into smaller LMW-F. MTT and live/dead assays showed that LMW-F inhibited cell proliferation in both A375 cells and patient-derived melanoma… More >

NADIA Z. SHAABAN¹, NASHWA K. IBRAHIM², HELEN N. SAADA², FATMA H. EL-RASHIDY¹, HEBATALLAH M. SHAABAN³, NERMEEN M. ELBAKARY^2,*, AHMAD S. KODOUS^1,2,*

Oncology Research, Vol.30, No.6, pp. 269-276, 2022, DOI:10.32604/or.2022.027277

Abstract Background: MicroRNAs (miRs) are small (19–25 nucleotides), non-protein coding RNAs that regulate gene expression, and thus play essential roles in cell cycle progression. The evidence has demonstrated that the expression of several miRs is dysregulated in human cancer. Methods: The study includes 179 female patients and 58 healthy women Patients were identified as luminal A, B, Her-2/neu, and basal-like, as well as classified into I, II, and III stages. Analysis of the expression fold change of miR-21 and miR-34a with molecular markers, including the oncogene Bcl-2 (B-cell lymphoma 2) and the tumor suppressor genes BRCA1 (breast cancer susceptibility gene 1),… More >

Teng Liu^*, Juan Xu^†, Hong Li Yan^‡, Feng Chun Cheng^*, Xi Jie Liu^*

Oncology Research, Vol.27, No.7, pp. 773-778, 2019, DOI:10.3727/096504018X15208986577685

Abstract Luteolin, which is found in plant foods, has a range of therapeutic applications. In order to examine the potential roles of luteolin in ovarian teratocarcinoma, the human ovarian teratocarcinoma cell line PA-1 was selected for functional experiments in vitro and in vivo. We demonstrated that luteolin inhibited the proliferation and colony formation of PA-1 cells in vitro. The flow cytometry results suggested that luteolin induced apoptosis of PA-1 cells in a dose-dependent manner. Immunofluorescence and qRT-PCR results showed that the expression of B-cell lymphoma-2 (Bcl-2) was decreased in luteolin-treated cells, whereas the expression of Bcl-2- associated X (Bax) was increased… More >

Qiuyun Luo^*†1, Wentao Pan^*†‡1, Suna Zhou^*†1, Guangfeng Wang^‡, Hanjie Yi^*§, Lin Zhang^*¶, Xianglei Yan^*†, Luping Yuan^*†, Zhenyi Liu^#, Jing Wang^**, Haibo Chen^#, MiaoZhen Qiu^*††, DaJun Yang^*†‡, Jian Sun^*‡‡

Oncology Research, Vol.28, No.4, pp. 331-344, 2020, DOI:10.3727/096504020X15825405463920

Abstract Despite therapeutic advances, the effective treatment for relapsed or refractory diffuse large B-cell lymphoma (DLBCL) remains a major clinical challenge. Evasion of apoptosis through upregulating antiapoptotic B-cell lymphoma-2 (BCL-2) family members and p53 inactivation, and abnormal activation of B-cell receptor signaling pathway are two important pathogenic factors for DLBCL. In this study, our aim is to explore a rational combination of BCL-2 inhibitor plus Bruton’s tyrosine kinase (BTK) blockade or p53 activation for treating DLBCL with the above characteristics. We demonstrated that a novel BCL-2 selective inhibitor APG-2575 effectively suppressed DLBCL with BCL-2 high expression via activating the mitochondrial apoptosis… More >

FEI CHEN^1,2, LIANG WANG^3,*, YUHONG LI^1,2,*

BIOCELL, Vol.46, No.7, pp. 1687-1696, 2022, DOI:10.32604/biocell.2022.018078

Abstract Long noncoding RNAs (lncRNAs) are vital regulators in tumorigenesis and metastasis. However, the pathological role of lncRNAs in hepatocellular carcinoma (HCC) is still unclear. In this study, we filtered out three lncRNAs from The Cancer Genome Atlas (TCGA) data that were screened for basic expression and clinical research. We selected lncRNA-NEAT1 for further study to explore its function in HCC progression and its regulatory mechanism. We identified three differentially expressed lncRNAs (DElncRNAs) in tumor and adjacent normal tissues from the TCGA library using data mining methods: lncRNA-NEAT1, lncRNA-MAGI2-AS3 and lncRNA-HCG11. Their basic expression levels were detected by qPCR. Then, we… More >

Liying Gong^1,2,3, Hongkun Jiang⁴, Guangrong Qiu¹, Kailai Sun^1,*

Congenital Heart Disease, Vol.16, No.5, pp. 499-512, 2021, DOI:10.32604/CHD.2021.015831

Abstract Background: microRNAs are crucial for cardiovascular development and are associated with congenital heart disease (CHD). Recent studies have shown that microRNAs play a role in heart development and is closely related to CHD. The present study investigated the underlying mechanism of microRNA-208a (miR-208a) in “simple” CHD. Material and Methods: Reverse transcription-quantitative PCR (RT-qPCR) demonstrated miR-208a expression levels in children with CHD (n = 27) compared with normal controls (n = 29), in cardiomyocytes from embryo 10 (E10) to post-birth (P7) and organs in adult rats in healthy rats. Apoptosis of H9c2 cells after transfection with miR-208a detected by TUNEL assay.… More >

ANNIE JOUBERT^1*, SUMARI MARAIS¹, CHRISTINE MARITZ²

BIOCELL, Vol.33, No.1, pp. 67-70, 2009, DOI:10.32604/biocell.2009.33.067

Abstract Proteins of the B-cell lymphoma 2 family are crucial for the regulation of apoptosis. B-cell lymphoma 2-associated X is a pro-apoptotic protein, while B-cell lymphoma 2 protein opposes apoptosis. The influence of 1 μM 2-methoxyestradiol was investigated on the expression levels of these two proteins in MCF-7 cells. 2-Methoxyestradiol exposure did not influence B-cell lymphoma 2 protein expression levels after 24 h of exposure. In contrast, B-cell lymphoma 2-associated X protein levels were significantly reduced. An improved differential interference contrasting technique revealed compromised cell density and the presence of a mitotic block in exposed cells. The study proposes that the… More >

NORA MOHAMAD, ALICIA GUTIÉRREZ, MARIEL NÚÑEZ, CLAUDIA COCCA, GABRIELA MARTÍN*, GRACIELA CRICCO, VANINA MEDINA, ELENA RIVERA, ROSA BERGOC*.

BIOCELL, Vol.29, No.2, pp. 149-161, 2005, DOI:10.32604/biocell.2005.29.149

Abstract Apoptosis or programmed cell death (PCD) is a physiological process characteristic of pluricellular organisms leading to self-destruction of the cell. It is therefore involved in development, homeostasis and host defense. However, a significant difference has been shown between mammalian cell apoptosis and non-mammalian cell apoptosis: mitochondria are implicated only in the former. Execution of PCD includes the release of several proapoptotic proteins from the intermembrane space of mitochondria. They could exert their actions through a caspase dependent as well as a caspase independent way. On the other hand, regulation of PCD is mainly given by the Bcl-2 family members, which… More >