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Search Results (18)
  • Open Access

    ARTICLE

    LA-D-B1, a novel Abemaciclib derivative, exerts anti-breast cancer effects through CDK4/6

    LING MA1,#, ZIRUI JIANG1,#, XIAO HOU1, YUTING XU1, ZIYUN CHEN1, SIYI ZHANG1, HANXUE LI1, SHAOJIE MA1, GENG ZHANG2, XIUJUN WANG1,*, JING JI1,*

    BIOCELL, Vol.48, No.5, pp. 847-860, 2024, DOI:10.32604/biocell.2024.050868 - 06 May 2024

    Abstract Background: Regulatory proteins involved in human cellular division and proliferation, cyclin-dependent kinases 4 and 6 (CDK4/6) are overexpressed in numerous cancers, including triple-negative breast cancer (TNBC). TNBC is a common pathological subtype of breast cancer that is prone to recurrence and metastasis, and has a single treatment method. As one of the CDK4/6 inhibitors, abemaciclib can effectively inhibit the growth of breast tumors. In this study, we synthesized LA-D-B1, a derivative of Abemaciclib, and investigated its anti-tumor effects in breast cancer. Methods: Cellular viability was assessed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Cell cloning and… More >

  • Open Access

    ARTICLE

    Antitumor effects of a novel photosensitizer-mediated photodynamic therapy and its influence on the cell transcriptome

    JINGJING CHEN1, DAN WANG2, ZEQUN WANG2, MENGYUAN HAN4, HOUQING YIN2, WENTING ZHOU4, RIBAI YAN5, YAN PAN2,3,*

    Oncology Research, Vol.32, No.5, pp. 911-923, 2024, DOI:10.32604/or.2023.042384 - 23 April 2024

    Abstract Photodynamic therapy (PDT) is a promising cancer treatment. This study investigated the antitumor effects and mechanisms of a novel photosensitizer meso-5-[ρ-diethylene triamine pentaacetic acid-aminophenyl]−10,15,20-triphenyl-porphyrin (DTP) mediated PDT (DTP-PDT). Cell viability, reactive oxygen species (ROS), and apoptosis were measured with a Cell Counting Kit-8 assay, DCFH-DA fluorescent probe, and Hoechst staining, respectively. Cell apoptosis- and autophagy-related proteins were examined using western blotting. RNA sequencing was used to screen differentially expressed mRNAs (DERs), and bioinformatic analysis was performed to identify the major biological events after DTP-PDT. Our results show that DTP-PDT inhibited cell growth and induced ROS… More > Graphic Abstract

    Antitumor effects of a novel photosensitizer-mediated photodynamic therapy and its influence on the cell transcriptome

  • Open Access

    REVIEW

    Stem cell technology for antitumor drug loading and delivery in oncology

    FRANCESCO PETRELLA*, ENRICO MARIO CASSINA, LIDIA LIBRETTI, EMANUELE PIRONDINI, FEDERICO RAVEGLIA, ANTONIO TUORO

    Oncology Research, Vol.32, No.3, pp. 433-437, 2024, DOI:10.32604/or.2023.046497 - 06 February 2024

    Abstract The main aim of antineoplastic treatment is to maximize patient benefit by augmenting the drug accumulation within affected organs and tissues, thus incrementing drug effects and, at the same time, reducing the damage of non-involved tissues to cytotoxic agents. Mesenchymal stromal cells (MSC) represent a group of undifferentiated multipotent cells presenting wide self-renewal features and the capacity to differentiate into an assortment of mesenchymal family cells. During the last year, they have been proposed as natural carriers for the selective release of antitumor drugs to malignant cells, thus optimizing cytotoxic action on cancer cells, while More >

  • Open Access

    ARTICLE

    Réflexions cliniques et éthiques à partir d’une recherche menée en psycho-oncologie sur la communication lors de l’annonce de l’échec d’un traitement antitumoral

    A. Rault, J. Terrasson, A. Brédart, S. Dolbeault

    Psycho-Oncologie, Vol.17, No.2, pp. 79-84, 2023, DOI:10.3166/pson-2022-0213

    Abstract Cet article rend compte des divers questionnements cliniques et éthiques apparus au cours de notre recherche en psycho-oncologie. Celle-ci porte sur la communication entre les oncologues et leurs patients, et les pédiatres-oncologues et les parents d’enfants malades à un moment particulier de la prise en charge : l’annonce de la résistance au traitement antitumoral et l’absence d’alternative curative connue. La mise en place d’une telle étude nécessite de prendre en compte les aspects émotionnels et psychologiques en jeu. Dans un premier temps, nous pré- sentons les interrogations portant sur le recrutement des participants : comment More >

  • Open Access

    REVIEW

    Mechanisms and applications of antitumor immunotherapy of responsive drug-loaded nanoparticles in breast cancer

    LETIAN JIN, HETING CHEN, QI RUAN, RUI LIU, YIFENG FAN, XIUFANG XU, DAJIANG WANG*, JIAHUI LU*

    BIOCELL, Vol.47, No.7, pp. 1483-1498, 2023, DOI:10.32604/biocell.2023.028457 - 21 June 2023

    Abstract During the chemotherapy of tumors, the cytotoxic effect of drugs is vital to kill tumor cells, and the delivery of a chemotherapeutic agent is of great importance for optimal therapeutic effects. The high in vivo clearance rate and low delivery efficiency of conventional chemotherapeutic agents affect the therapeutic effect. In recent years, the responsive drug delivery nanosystem has received increasing concern owing to its excellent biocompatibility, stable delivery performance, and controlled drug release strategies. To lucidly explain the cytocidal and immunotherapeutic effects of such responsive nanosystems in breast cancer, this review discusses the various stimuli and More >

  • Open Access

    ARTICLE

    Gene expression profile analysis reveals the effect of metformin treatment on HepG2 cells

    YI HUANG1,2, CHUNFENG DOU2, XUMING HU2, HENGMI CUI2,*

    BIOCELL, Vol.46, No.4, pp. 961-967, 2022, DOI:10.32604/biocell.2022.018131 - 15 December 2021

    Abstract Metformin is a first-line drug in the fight against type 2 diabetes. In recent years, studies have shown that metformin has some preventive and therapeutic effects on liver cancer, but the effects of metformin on the gene expression of liver cancer cells are not fully known. This study focused on the differences in the gene expression profiles in liver cancer cells treated with or without metformin. A total of 153 differentially expressed genes (DEGs) (FC > 2 and q-values < 0.001) were found, including 77 upregulated genes and 76 downregulated genes. These DEGs are involved in More >

  • Open Access

    REVIEW

    Biomedical overview of melanin. 1. Updating melanin biology and chemistry, physico-chemical properties, melanoma tumors, and photothermal therapy

    ALFONSO BLÁZQUEZ-CASTRO1,2,*, JUAN CARLOS STOCKERT2,3

    BIOCELL, Vol.45, No.4, pp. 849-862, 2021, DOI:10.32604/biocell.2021.015900 - 22 April 2021

    Abstract Melanins (eumelanin, pheomelanin, and allomelanin) represent a very, if not the most, important group of biological pigments. Their biological roles are multiple, from photoprotection to antioxidant activity, heavy metal disposal or the myriad uses of color in organisms across all Phyla. In the first part of this review, eumelanin biology and some chemical aspects will be presented, as well as key physico-chemical features that make this biological pigment so interesting. The principal characteristics of the melanocyte, the melanin-synthesizing cell in mammals, will also be introduced. Transformed melanocytes are the cause of one of the most More >

  • Open Access

    ARTICLE

    Reversal of multidrug resistance and antitumor promoting activity of 3-oxo-6β-hydroxy- β-amyrin isolated from Pistacia integerrima

    ABDUR RAUF1,*, SAUD BAWAZEER2,*, MUSLIM RAZA3, EMAN EL-SHARKAWY4, MD. HABIBUR RAHMAN5,6, MOHAMED A. EL-ESAWI7, GHIAS UDDIN8, BINA S. SIDDIQUI9, ANEES AHMED KHALIL10, JOSEPH MOLNAR11, AKOS CSONKA11, DIÁNA SZABÓ12, HAROON KHAN13, MOHAMMAD S. MUBARAK14, TAIBI BEN HADDA15, MUDYAWATI KAMARUDDIN16, SEEMA PATEL17

    BIOCELL, Vol.45, No.1, pp. 139-147, 2021, DOI:10.32604/biocell.2021.013277 - 26 January 2021

    Abstract The bioactive triterpenoid 3-oxo-6-β-hydroxy-β-amyrin (1) has been isolated from multiple plant sources. In this study, chloroform fraction of Pistacia integerrima extract was processed for the isolation of the compound. The compound identity was confirmed by advanced spectroscopy technique. X-ray crystallography was applied for molecular structure confirmation. In addition, compound 1 was screen for its activity on reversal of MDR (multidrug resistance) mediated by P-gp (P-glycoprotein). This was accomplished by using rhodamine123 exclusion on multidrug-resistant human ABCB1 gene transfected mouse T-lymphoma cell line. Outcomes revealed that MDR reversing effect was comparable to verapamil as positive control inMore >

  • Open Access

    REVIEW

    Sulforaphane: Expected to Become a Novel Antitumor Compound

    Geting Wu*1, Yuanliang Yan†‡1, Yangying Zhou§, Yumei Duan*, Shuangshuang Zeng†‡, Xiang Wang†‡, Wei Lin*, Chunlin Ou*, Jianhua Zhou*, Zhijie Xu*‡

    Oncology Research, Vol.28, No.4, pp. 439-446, 2020, DOI:10.3727/096504020X15828892654385

    Abstract Natural products are becoming increasingly popular in a variety of traditional, complementary, and alternative systems due to their potency and slight side effects. Natural compounds have been shown to be effective against many human diseases, especially cancers. Sulforaphane (SFE) is a traditional Chinese herbal medicine. In recent years, an increasing number of studies have been conducted to evaluate the antitumor effect of SFE. The roles of SFE in cancers are mainly through the regulation of potential biomarkers to activate or inhibit related signaling pathways. SFE has exhibited promising inhibitory effects on breast cancer, lung cancer, More >

  • Open Access

    ARTICLE

    IL-24-Armed Oncolytic Vaccinia Virus Exerts Potent Antitumor Effects via Multiple Pathways in Colorectal Cancer

    Lili Deng*1, Xue Yang†1, Jun Fan*, Yuedi Ding*, Ying Peng*, Dong Xu*, Biao Huang*‡, Zhigang Hu

    Oncology Research, Vol.28, No.6, pp. 579-590, 2020, DOI:10.3727/096504020X15942028641011

    Abstract Colorectal cancer is an aggressive malignancy for which there are limited treatment options. Oncolytic vaccinia virus is being developed as a novel strategy for cancer therapy. Arming vaccinia virus with immunostimulatory cytokines can enhance the tumor cell-specific replication and antitumor efficacy. Interleukin-24 (IL-24) is an important immune mediator, as well as a broad-spectrum tumor suppressor. We constructed a targeted vaccinia virus of Guang9 strain harboring IL-24 (VG9-IL-24) to evaluate its antitumor effects. In vitro, VG9-IL-24 induced an increased number of apoptotic cells and blocked colorectal cancer cells in the G2 /M phase of the cell cycle. More >

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