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  1. Fulltext Epigenetic regulation of temozolomide resistance in human cancers with an emphasis on brain tumors: Function of non-coding RNAs
    Rezaee A, Tehrany PM, Tirabadi FJ, Sanadgol N, Karimi AS, Ajdari A, et al.
    Biomed Pharmacother, 2023 Sep;165:115187.
    PMID: 37499452 DOI: 10.1016/j.biopha.2023.115187
    Brain tumors, which are highly malignant, pose a significant threat to health and often result in substantial rates of mortality and morbidity worldwide. The brain cancer therapy has been challenging due to obstacles such as the BBB, which hinders effective delivery of therapeutic agents. Additionally, the emergence of drug resistance further complicates the management of brain tumors. TMZ is utilized in brain cancer removal, but resistance is a drawback. ncRNAs are implicated in various diseases, and their involvement in the cancer is particularly noteworthy. The focus of the current manuscript is to explore the involvement of ncRNAs in controlling drug resistance, specifically in the context of resistance to the chemotherapy drug TMZ. The review emphasizes the function of ncRNAs, particularly miRNAs, in modulating the growth and invasion of brain tumors, which significantly influences their response to TMZ treatment. Through their interactions with various molecular pathways, miRNAs are modulators of TMZ response. Similarly, lncRNAs also associate with molecular pathways and miRNAs, affecting the efficacy of TMZ chemotherapy. Given their functional properties, lncRNAs can either induce or suppress TMZ resistance in brain tumors. Furthermore, circRNAs, which are cancer controllers, regulate miRNAs by acting as sponges, thereby impacting the response to TMZ chemotherapy. The review explores the correlation between ncRNAs and TMZ chemotherapy, shedding light on the underlying molecular pathways involved in this process.
    Matched MeSH terms: Antineoplastic Agents, Alkylating/therapeutic use
  2. Fulltext Intra-arterial chemotherapy for retinoblastoma: Our first three-and-a-half years' experience in Malaysia
    Liu CC, Mohmood A, Hamzah N, Lau JH, Khaliddin N, Rahmat J
    PLoS One, 2020;15(5):e0232249.
    PMID: 32357178 DOI: 10.1371/journal.pone.0232249
    AIM: To report our first three-and-a-half years' experience with intra-arterial chemotherapy (IAC) in managing retinoblastoma (RB).

    METHODS: Single institution, retrospective, interventional case series of 14 retinoblastoma patients managed with IAC from December 2014 to June 2018. Demographics were described. Outcomes measures were tumor response, treatment complications and globe salvage.

    RESULTS: Subjects' mean age at the first administration of IAC was 31.4 months. 57.1% of the eyes were Group D and E retinoblastoma, while 79% were bilateral disease. 93% of the eyes were as secondary treatment. Of 32 IAC cannulations performed, 23 (71.8%) were successful and received chemotherapy drug melphalan. Each eye received a mean of 1.8 (range 1-4) IAC injections. 53% of the eyes showed regression post treatment. After a mean follow up period of 19 months, globe salvage rate was 38%. Most of the adverse effects experienced were localized and transient.

    CONCLUSION: IAC has provided an added recourse in the armamentarium of retinoblastoma treatment in our center. IAC treatment is a viable alternative in the treatment of retinoblastoma to salvage globe, for eyes that would conventionally require enucleation especially in bilateral disease.

    Matched MeSH terms: Antineoplastic Agents, Alkylating/therapeutic use*
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