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  • Open Access

    ARTICLE

    SORBS1 Knockdown Resists S/G2 Arrest and Apoptosis Caused by Polyphyllin H-Induced DNA Damage in Pancreatic Cancer

    Xinxin Hu1,2,#, Yuye Xue3,#, Fei Fang4, Jie Li2, Xiaofeng Yuan2, Guang Cheng5, Hailong Yuan3, Yongqiang Zhang2, Yuefei Zhou5, Shuangwu Yang5, Pengcheng Qiu2,*, Yunyang Lu2, Haifeng Tang2,*

    Oncology Research, Vol.33, No.9, pp. 2491-2506, 2025, DOI:10.32604/or.2025.064454 - 28 August 2025

    Abstract Objectives: The Sorbin and SH3 domain containing 1 (SORBS1), a protein linked to insulin signaling CBL interaction, was investigated for its role in pancreatic cancer apoptosis. This study explored polyphyllin H (PPH)’s ability to restore SORBS1-knockdown-mediated repair functions. Methods: PANC-1 cells were divided into Blank, overexpression (OE), and knockdown groups. CCK-8 assays assessed proliferation and drug toxicity. Western blot and flow cytometry analyzed SORBS1 levels and PPH effects. Comet assays quantified DNA damage. Subcutaneous xenograft tumors in nude mice (Blank vs. knockdown) were treated with PPH to evaluate in vivo efficacy. SORBS1-H2AX gene correlation was analyzed… More > Graphic Abstract

    SORBS1 Knockdown Resists S/G2 Arrest and Apoptosis Caused by Polyphyllin H-Induced DNA Damage in Pancreatic Cancer

  • Open Access

    ARTICLE

    SLFN11 Deficiency-Induced Gemcitabine Resistance Is Overcome by Agents Targeting the DNA Damage Response in Pancreatic Cancer Cells

    Jae Hyeong Kim1, Yuna Youn1, Jin-Hyeok Hwang1,2,*

    BIOCELL, Vol.49, No.4, pp. 681-700, 2025, DOI:10.32604/biocell.2025.062144 - 30 April 2025

    Abstract Objectives: SLFN11 (Schlafen-11) enhances sensitivity to DNA-damaging agents (DDAs) and DNA damage response (DDR) inhibitors in various cancer types. However, its function in pancreatic cancer (PC) remains largely unknown. This research aims to investigate the expression patterns of SLFN11 and other SLFN family members in PC and their correlation with drug sensitivity. Methods: SLFN11 expression and genetic alterations were analyzed using publicly available datasets (TCGA and GTEx). Functional studies, including cell cycle, apoptosis assays, and proliferation assays, were performed in SLFN11-knockdown and SLFN11-knockout (KO) PC cells. The relationship between SLFN11 expression and drug responsiveness was assessed via the CellMiner… More >

  • Open Access

    ARTICLE

    Total Phenolic and Flavonoid Contents of Cymbocarpum widemannii and Their Antioxidant, Antimicrobial, DNA Damaging Activities

    Mehmet Fidan1, Behcet Inal2,*, Mesut Sırrı3, Bülent Hallaç4, Ulutas Mehmet Sefa1

    Phyton-International Journal of Experimental Botany, Vol.94, No.3, pp. 781-791, 2025, DOI:10.32604/phyton.2025.062171 - 31 March 2025

    Abstract The use of conventional herbal medicines is a rapidly expanding phenomenon in developed nations. For instance, 30%–50% of all drug use in China is attributed to traditional herbal preparations. Current study evaluated the antioxidant (DPPH, FRAP), total phenolic and flavonoid content, antibacterial activity, and DNA damage protective potential of aqueous and methanolic extracts obtained from the aerial parts and roots of Cymbocarpum wiedemannii Boiss., an endemic plant in Turkey. In antioxidant analyses, the methanolic extract of the aerial parts showed the highest %DPPH (73.38) and IC50 (3.46 mg/mL) values. The FRAP analysis revealed the highest iron-reducing… More > Graphic Abstract

    Total Phenolic and Flavonoid Contents of <i>Cymbocarpum widemannii</i> and Their Antioxidant, Antimicrobial, DNA Damaging Activities

  • Open Access

    ARTICLE

    LncRNA HOTAIR promotes DNA damage repair and radioresistance by targeting ATR in colorectal cancer

    HAIQING HU1,#,*, HAO YANG2,#, SHUAISHUAI FAN3, XUE JIA3, YING ZHAO3, HONGRUI LI3

    Oncology Research, Vol.32, No.8, pp. 1335-1346, 2024, DOI:10.32604/or.2024.044174 - 17 July 2024

    Abstract Long non-coding RNAs (lncRNAs) have been implicated in cancer progression and drug resistance development. Moreover, there is evidence that lncRNA HOX transcript antisense intergenic RNA (HOTAIR) is involved in colorectal cancer (CRC) progression. The present study aimed to examine the functional role of lncRNA HOTAIR in conferring radiotherapy resistance in CRC cells, as well as the underlying mechanism. The relative expression levels of HOTAIR were examined in 70 pairs of CRC tumor and para-cancerous tissues, as well as in radiosensitive and radioresistant samples. The correlations between HOTAIR expression levels and clinical features of patients with… More >

  • Open Access

    ARTICLE

    New insights into ATR inhibition in muscle invasive bladder cancer: The role of apolipoprotein B mRNA editing catalytic subunit 3B

    HYUNHO KIM1, UIJU CHO2, SOOK HEE HONG3, HYUNG SOON PARK1, IN-HO KIM3, HO JUNG AN1, BYOUNG YONG SHIM1, JIN HYOUNG KANG3,*

    Oncology Research, Vol.32, No.6, pp. 1021-1030, 2024, DOI:10.32604/or.2024.048919 - 23 May 2024

    Abstract Background: Apolipoprotein B mRNA editing catalytic polypeptide (APOBEC), an endogenous mutator, induces DNA damage and activates the ataxia telangiectasia and Rad3-related (ATR)-checkpoint kinase 1 (Chk1) pathway. Although cisplatin-based therapy is the mainstay for muscle-invasive bladder cancer (MIBC), it has a poor survival rate. Therefore, this study aimed to evaluate the efficacy of an ATR inhibitor combined with cisplatin in the treatment of APOBEC catalytic subunit 3B (APOBEC3B) expressing MIBC. Methods: Immunohistochemical staining was performed to analyze an association between APOBEC3B and ATR in patients with MIBC. The APOBEC3B expression in MIBC cell lines was assessed… More >

  • Open Access

    ARTICLE

    Flavonoids in safflower extract reduce cisplatin-induced damage to human follicle dermal papilla cells by inhibiting DNA damage and Rad17/Chk1/Cdc25C signaling

    FU-MING TSAI1, PING-HSUN LU2,3, LU-KAI WANG4, CHAN-YEN KUO1, MAO-LIANG CHEN1, CHUN-HUA WANG5,6,*

    BIOCELL, Vol.47, No.8, pp. 1793-1802, 2023, DOI:10.32604/biocell.2023.030093 - 28 August 2023

    Abstract Background: Cisplatin is a chemotherapeutic agent commonly used clinically for the treatment of various human cancers. Patients often reduce the use of cisplatin due to its side effects, which in turn affects its treatment. This study explored the mechanism of action of safflower extract as an adjuvant traditional Chinese medicine for chemotherapy. Methods: Primary human follicle dermal papilla cells (HFDPCs) were used as target cells for cisplatin-induced damage to hair cells. Western blotting was used to investigate the molecular targets of cisplatin and safflower extract in causing HFDPCs damage. Cell survival and cell cycle were… More >

  • Open Access

    ARTICLE

    Blue LED promotes the chemosensitivity of human hepatoma to Sorafenib by inducing DNA damage

    TONG WANG1,4,#, JINHUAN HONG1,5,#, JIAJIE XIE1,5, QIAN LIU4, JINRUI YUE1,5, XUTING HE1,5, SHIYU GE4, TAO LI4, GUOXIN LIU4, BENZHI CAI1,3,5, LINQIANG LI2,*, YE YUAN1,3,5,*

    BIOCELL, Vol.47, No.8, pp. 1811-1820, 2023, DOI:10.32604/biocell.2023.029120 - 28 August 2023

    Abstract Background: Phototherapies based on sunlight, infrared, ultraviolet, visible, and laser-based treatments present advantages like high curative effects, small invasion, and negligible adverse reactions in cancer treatment. We aimed to explore the potential therapeutic effects of blue light emitting diode (LED) in human hepatoma cells and decipher the underlying cellular and molecular mechanisms. Methods: Wound healing and transwell assays were employed to probe the inhibition of the invasion and migration of hepatocellular carcinoma cells in the presence of blue LED. The sphere-forming test was used to evaluate the effect of LED blue light irradiation on cancer… More > Graphic Abstract

    Blue LED promotes the chemosensitivity of human hepatoma to Sorafenib by inducing DNA damage

  • Open Access

    ARTICLE

    mTORC2 promotes pancreatic cancer progression and parp inhibitor resistance

    CHIWEN BU1,2, LIGANG ZHAO1, LISHAN WANG1, ZEQIAN YU1, JIAHUA ZHOU1,*

    Oncology Research, Vol.31, No.4, pp. 495-503, 2023, DOI:10.32604/or.2023.029309 - 25 June 2023

    Abstract Pancreatic cancer is one of the most aggressive cancers with a median survival time of less than 5 months, and conventional chemotherapeutics are the main treatment strategy. Poly(ADP-ribose) polymerase (PARP) inhibitors have been recently approved for BRCA1/2-mutant pancreatic cancer, opening a new era for targeted therapy for this disease. However, most pancreatic cancer patients carry wild-type BRCA1/2 with resistance to PARP inhibitors. Here, we reported that mammalian target of rapamycin complex 2 (mTORC2) kinase is overexpressed in pancreatic cancer tissues and promotes pancreatic cancer cell growth and invasion. Moreover, we found that knockdown of the More > Graphic Abstract

    mTORC2 promotes pancreatic cancer progression and parp inhibitor resistance

  • Open Access

    ARTICLE

    Development of a prognostic signature for esophageal cancer based on a novel 7-DNA damage repair genes signature

    JIAMING ZHAN, WEIHUA WANG, YANLEI TANG, NING ZHOU, DAOWEN JIANG*

    BIOCELL, Vol.46, No.12, pp. 2601-2613, 2022, DOI:10.32604/biocell.2022.021300 - 10 August 2022

    Abstract Esophageal cancer (EC) was an aggressive malignant neoplasm characterized by high morbidity and poor prognosis. Identifying the changes in DNA damage repair genes helps to better understand the mechanisms of carcinoma progression. In this study, by comparing EC samples and normal samples, we found a total of 132 DDR expression with a significant difference. Moreover, we revealed higher expression of POLN, PALB2, ATM, PER1, TOP3B and lower expression of HMGB1, UBE2B were correlated to longer OS in EC. In addition, a prognostic risk score based on 7 DDR gene expression (POLN, HMGB1, TOP3B, PER1, UBE2B,… More >

  • Open Access

    ARTICLE

    Effect of UV Radiation and Other Abiotic Stress Factors on DNA of Different Wild Plant Species Grown in Three Successive Seasons in Alpine and Subalpine Regions

    Svetla P. Gateva1,*, Gabriele Jovtchev1, Tsveta V. Angelova1, Tzvetana P. Nonova2, Nikolay Tyutyundzhiev3, Elena G. Geleva2, Kostadin Katrandzhiev1, Nina A. Nikolova2, Dimitar Dimitrov4, Christo V. Angelov2

    Phyton-International Journal of Experimental Botany, Vol.91, No.2, pp. 293-313, 2022, DOI:10.32604/phyton.2022.016397 - 26 September 2021

    Abstract Plants in natural ecosystems are exposed to a combination of UV radiation, ionizing radiation (IR) and other abiotic factors. These factors change with the altitude. We investigated DNA alterations of some wild plants of different plant families in natural ecosystems at three altitudes in Rila Mountain, Bulgaria (1500, 1782, and 2925 m above sea level (a.s.l.) exposed to UV radiation, IR and other abiotic stresses, to assess the tolerance of plant species to the changing environmental conditions in three successive growth seasons. For this purpose, physicochemical, cytogenetic, and molecular methods were applied. DNA damage was assessed… More >

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