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Search Results (43)
  • Open Access

    REVIEW

    Mechanistic Insights into the Role of Melatonin in Cancer Cell Chemoresistance

    Russel J. Reiter1,*, Ramaswamy Sharma2,*, Walter Manucha3, Walter Balduini4, Doris Loh5, Demetrios A. Spandidos6, Alejandro Romero7, Vasiliki E. Georgakopoulou8, Wei Zhu9

    BIOCELL, Vol.49, No.11, pp. 2033-2067, 2025, DOI:10.32604/biocell.2025.067661 - 24 November 2025

    Abstract The development of cancer cell resistance to conventional treatments continues to be a major obstacle in the successful treatment of tumors of many types. The discovery of a highly efficient direct and indirect free radical scavenger, melatonin, in the mitochondrial matrix may be a factor in determining both the occurrence of cancer cell drug insensitivity as well as radioresistance. This relates to two of the known hallmarks of cancer, i.e., exaggerated free radical generation in the mitochondria and the development of Warburg type metabolism (glycolysis). The hypothesis elaborated in this report assumes that the high… More >

  • Open Access

    RETRACTION

    Retraction: Knockdown of Rap1b Enhances Apoptosis and Autophagy in Gastric Cancer Cells via the PI3K/Akt/mTOR Pathway

    Oncology Research Editorial Offfce

    Oncology Research, Vol.33, No.8, pp. 2177-2177, 2025, DOI:10.32604/or.2025.070133 - 18 July 2025

    Abstract This article has no abstract. More >

  • Open Access

    RETRACTION

    Retraction: Overexpression of the Long Noncoding RNA FOXD2-AS1 Promotes Cisplatin Resistance in Esophageal Squamous Cell Carcinoma Through the miR-195/Akt/mTOR Axis

    Oncology Research Editorial Office

    Oncology Research, Vol.33, No.6, pp. 1509-1509, 2025, DOI:10.32604/or.2024.062048 - 29 May 2025

    Abstract This article has no abstract. More >

  • Open Access

    ARTICLE

    Resveratrol Preserves Mitochondrial DNA Integrity and Long-Term Memory without Decreasing Amyloid-β Levels in Alzheimer’s Disease Mouse Models

    ARTEM P. GUREEV1, IRINA S. SADOVNIKOVA1, EKATERINA V. CHERNYSHOVA1, EKATERINA P. KRUTSKIKH1, IRINA B. PEVZNER2, LJUBAVA D. ZOROVA2, VERONIKA V. NESTEROVA1, POLINA I. BABENKOVA1, EGOR Y. PLOTNIKOV2,*

    BIOCELL, Vol.49, No.5, pp. 873-892, 2025, DOI:10.32604/biocell.2025.063557 - 27 May 2025

    Abstract Background: Mitochondrial dysfunction plays a critical role in the pathogenesis of Alzheimer’s disease (AD). Resveratrol is a promising compound for the treatment of various neurodegenerative diseases, including AD. Aims: To investigate mitochondrial damage and the effects of resveratrol on inflammation, cognitive function, and mitochondrial quality control in APP/PS1 mice. Methods: Comparative analysis of mitochondrial DNA (mtDNA) damage was conducted between 10-month-old APP/PS1 mice and age-matched C57BL/6 mice. Assessments included measurement of amyloid-β levels, inflammatory markers, swimming distance in the Morris water maze, and gut microbiome composition. Resveratrol’s effects on cytokine expression, mtDNA levels in plasma, and… More >

  • Open Access

    REVIEW

    Evaluating Oncogenic Drivers and Therapeutic Potential of the PI3K/AKT/mTOR Pathway in Hepatocellular Carcinoma: An Overview of Clinical Trials

    Ayda Baghery Saghchy Khorasani1, Mahda Delshad2, Mohammad-Javad Sanaei2,3, Atieh Pourbagheri-Sigaroodi2, Ali Pirsalehi4, Davood Bashash2,*

    BIOCELL, Vol.49, No.4, pp. 539-562, 2025, DOI:10.32604/biocell.2025.059970 - 30 April 2025

    Abstract Hepatocellular carcinoma (HCC) is the most common primary liver tumor and the third leading cause of cancer-related mortality globally. The phosphatidylinositol-3 kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signaling pathway is critically involved in HCC pathogenesis, stimulating uncontrolled cell proliferation, survival, and tumor progression. The overactivation of this pathway is strongly linked to poor prognosis, making it a crucial target for therapeutic intervention. The oncogenic roles of PI3K/AKT/mTOR components in HCC have been highlighted, noting that class I PI3K deregulation, phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA) upregulation, and mTOR overexpression could be associated… More >

  • Open Access

    ARTICLE

    DAPK2 promotes autophagy to accelerate the progression of ossification of the posterior longitudinal ligament through the mTORC1 complex

    LEI SHI1,#, JIANSHI YIN2,#, YU CHEN1, JIANGANG SHI1, JINHAO MIAO1,*

    BIOCELL, Vol.48, No.9, pp. 1389-1400, 2024, DOI:10.32604/biocell.2024.049562 - 04 September 2024

    Abstract Background: Ossification of the posterior longitudinal ligament (OPLL) is a prevalent condition in orthopedics. While death-associated protein kinase 2 (DAPK2) is known to play roles in cellular apoptosis and autophagy, its specific contributions to the advancement of OPLL are not well understood. Methods: Ligament fibroblasts were harvested from patients diagnosed with OPLL. Techniques such as real-time reverse transcriptase-polymerase chain reaction (RT-qPCR) and Western blot analysis were employed to assess DAPK2 levels in both ligament tissues and cultured fibroblasts. The extent of osteogenic differentiation in these cells was evaluated using an alizarin red S (ARS) staining. Additionally,… More >

  • Open Access

    ARTICLE

    ROR2 promotes invasion and chemoresistance of triple-negative breast cancer cells by activating PI3K/AKT/mTOR signaling

    XIA DA1, HAN GE2, JUNFENG SHI3, CHUNHUA ZHU1, GUOZHU WANG1, YUAN FANG4,*, JIN XU1,*

    Oncology Research, Vol.32, No.7, pp. 1209-1219, 2024, DOI:10.32604/or.2024.045433 - 20 June 2024

    Abstract Objective: This study aimed to investigate the role of receptor tyrosine kinase-like orphan receptor 2 (ROR2) in triple-negative breast cancer (TNBC). Methods: ROR2 expression in primary TNBC and metastatic TNBC tissues was analyzed by immunohistochemical staining and PCR. ROR2 expression in TNBC cell lines was detected by PCR and Western blot analysis. The migration, invasion and chemosensitivity of TNBC cells with overexpression or knockdown of ROR2 were examined. Results: ROR2 expression was high in metastatic TNBC tissues. ROR2 knockdown suppressed the migration, invasion and chemoresistance of TNBC cells. ROR2 overexpression in MDA-MB-435 cells promoted the migration, More >

  • Open Access

    ARTICLE

    UBE2T mediates the stemness properties of breast cancer cells through the mTOR signaling pathway

    JIAWEI YIN1, YONGSHENG WANG2,3, GUANGWEI WEI4, MINGXIN WEN3,*

    BIOCELL, Vol.48, No.6, pp. 959-970, 2024, DOI:10.32604/biocell.2024.049349 - 10 June 2024

    Abstract Objectives: This study aimed to reveal the role and possible mechanism of the ubiquitin-conjugating enzyme 2T (UBE2T) in the biological activities of breast cancer stem cells (BCSCs). Methods: The specific protein and gene expression were quantified by Western blotting and quantitative real-time polymerase chain reaction, the proportion of BCSCs was examined by flow cytometry, and the self-renewal and proliferation of BCSCs were verified by serial sphere formation and soft agar. Results: Increasing expression of UBE2T was drastically found in breast cancer than that in adjacent tissues. Furthermore, UBE2T overexpression significantly increased the proportion of BCSCs in More >

  • Open Access

    ARTICLE

    Suppression of cell pyroptosis by omeprazole through PDE4-mediated autophagy in gastric epithelial cells

    LIPING YE1,2,3,#, HUIYAN SUN4,#, XINHUA LIANG2,#, WENXU PAN2, LI XIANG2,3, WENJUN DU2, LANLAN GENG2, WANFU XU2,3,*, SITANG GONG1,2,3,*

    BIOCELL, Vol.47, No.12, pp. 2709-2719, 2023, DOI:10.32604/biocell.2023.044295 - 27 December 2023

    Abstract Introduction: Helicobacter pylori is a risk factor for the development of peptic ulcers with autophagy dysfunction. Omeprazole was widely known as the first-line regimen for H. pylori-associated gastritis. Objectives: The objective of this work was to assess the role of omeprazole on cell pyroptosis and autophagy. Methods: The clinical samples were collected. Quantitative polymerase chain reaction, western blotting, enzyme linked immunosorbent assay, and immunofluorescence (IF) analysis were conducted to reveal the mechanism of omeprazole on cell pyroptosis and autophagy. Results: The results revealed that omeprazole could decrease cell pyroptosis, which was attributed to the downregulation of cleaved caspase-1 expression,… More >

  • Open Access

    ARTICLE

    Anti-proliferative effect of Annona extracts on breast cancer cells

    MARIA-LUISA VEISAGA1,2, MARIAM AHUMADA2, STACY SORIANO2, LEONARDO ACUNA3, WEI ZHANG3, IVY LEUNG2, ROBERT BARNUM2, MANUEL A. BARBIERI1,2,3,4,5,*

    BIOCELL, Vol.47, No.8, pp. 1835-1852, 2023, DOI:10.32604/biocell.2023.029076 - 28 August 2023

    Abstract Backgorund: Fruits and seed extracts of Annona montana have significant cytotoxic potential in several cancer cells. This study evaluates the effect of A. montana leaves hexane extract on several signaling cascades and gene expression in metastatic breast cancer cells upon insulin-like growth factor-1 (IGF-1) stimulation. Methods: MTT assay was performed to determine the proliferation of cancer cells. Propidium iodide staining and flow cytometry analysis of Annexin V binding was utilized to measure the progression of the cell cycle and the induction of apoptosis. Protein expression and phosphorylation were determined by western blotting analysis to examine the underlying cellular mechanism… More >

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