Yazar "Saebfar, Hamidreza" seçeneğine göre listele

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    Doxorubicin-loaded graphene oxide nanocomposites in cancer medicine: stimuli-responsive carriers, co-delivery and suppressing resistance
    (2022) Ashrafizadeh, Milad; Saebfar, Hamidreza; Gholami, Mohammad Hossein; Hushmandi, Kiavash; Zabolian, Amirhossein; Zarrabi, Ali
    Introduction: The application of doxorubicin (DOX) in cancer therapy has been limited due to its drug resistance and poor internalization. Graphene oxide (GO) nanostructures have the capacity for DOX delivery while promoting its cytotoxicity in cancer. Areas covered: The favorable characteristics of GO nanocomposites, preparation method, and application in cancer therapy are described. Then, DOX resistance in cancer is discussed. The GO-mediated photothermal therapy and DOX delivery for cancer suppression are described. Preparation of stimuli-responsive GO nanocomposites, surface functionalization, hybrid nanoparticles, and theranostic applications are emphasized in DOX chemotherapy. Expert opinion: Graphene oxide nanoparticle-based photothermal therapy maximizes the anti-cancer activity of DOX against cancer cells. Apart from DOX delivery, GO nanomaterials are capable of loading anti-cancer agents and genetic tools to minimize drug resistance and enhance the cytolytic impact of DOX in cancer eradication. To enhance DOX accumulation in cancer cells, stimuli-responsive (redox-, light-, enzyme- and pH-sensitive) GO nanoparticles have been developed for DOX delivery. Further development of targeted delivery of DOX-loaded GO nanomaterials against cancer cells may be achieved by surface modification of polymers such as polyethylene glycol, hyaluronic acid, and chitosan. Doxorubicin-loaded GO nanoparticles have demonstrated theranostic potential for simultaneous diagnosis and therapy. Hybridization of GO with other nanocarriers such as silica and gold nanoparticles further broadens their potential anti-cancer therapy applications.
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    Noncoding RNAs and their therapeutics in paclitaxel chemotherapy: Mechanisms of initiation, progression, and drug sensitivity
    (Wiley, 2022) Mahabady, Mahmood K.; Mirzaei, Sepideh; Saebfar, Hamidreza; Gholami, Mohammad H.; Zabolian, Amirhossein; Hushmandi, Kiavash; Hashemi, Farid; Tajik, Fatemeh; Hashemi, Mehrdad; Kumar, Alan P.; Aref, Amir R.; Zarrabi, Ali; Khan, Haroon; Hamblin, Michael R.; Ertas, Yavuz Nuri; Samarghandian, Saeed
    The identification of agents that can reverse drug resistance in cancer chemotherapy, andenhance the overall efficacy is of great interest. Paclitaxel (PTX) belongs to taxane family hat exerts an antitumor effect by stabilizing microtubules and inhibiting cell cycleprogression. However, PTX resistance often develops in tumors due to the over-expression of drug transporters and tumor?promoting pathways. Noncoding RNAs(ncRNAs) are modulators of many processes in cancer cells, such as apoptosis, migration,differentiation, and angiogenesis. In the present study, we summarize the effects ofncRNAs on PTX chemotherapy. MicroRNAs (miRNAs) can have opposite effects on PTXresistance (stimulation or inhibition) via influencing YES1, SK2, MRP1, and STAT3.Moreover, miRNAs modulate the growth and migration rates of tumor cells in regulatingPTX efficacy. PIWI?interacting RNAs, small interfering RNAs, and short?hairpin RNAs areother members of ncRNAs regulating PTX sensitivity of cancer cells. Long noncodingRNAs (LncRNAs) are similar to miRNAs and can modulate PTX resistance/sensitivity bytheir influence on miRNAs and drug efflux transport. The cytotoxicity of PTX againsttumor cells can also be affected by circular RNAs (circRNAs) and limitation is thatoncogenic circRNAs have been emphasized and experiments should also focus on onco?suppressor circRNAs.
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    Overcoming doxorubicin resistance in cancer: siRNA-loaded nanoarchitectures for cancer gene therapy
    (2022) Deldar Abad Paskeh, Mahshid; Saebfar, Hamidreza; Mahabady, Mahmood Khaksary; Orouei, Sima; Hushmandi, Kiavash; Zarrabi, Ali
    Gene therapy can be used as a cancer therapy by affecting signaling networks participating in the aggressive behavior of tumors. Small interfering RNA (siRNA) is a genetic tool employed for gene silencing. The siRNA molecules have a length of 21-22 nucleotides, and are synthetic, short non-coding RNAs. The siRNA molecule should be loaded into the RISC complex to carry out its function to degrade mRNA and reduce protein expression. By targeting oncogenic pathways, siRNA can also promote chemosensitivity and reduce resistance. Doxorubicin (DOX) is an anthracycline family member capable of triggering cell cycle arrest via binding to topoisomerase II and inhibiting DNA replication. The present review focuses on the design of siRNA for increasing DOX sensitivity and overcoming resistance. Molecular pathways such as STAT3, Notch1, Mcl-1 and Nrf2 can be down-regulated by siRNA to promote DOX sensitivity. Furthermore, siRNA can be used to suppress the activity of P-glycoprotein as a cell membrane transporter of drugs, leading to enhanced accumulation of DOX. The co-delivery of DOX and siRNA both incorporated into nanoparticles can increase the intracellular accumulation in cancer cells, and protect siRNA against degradation by enzymes. Furthermore, the circulation time of DOX is lengthened to boost cytotoxicity against cancer cells. The surface modification of nanocarriers with ligands such as RGD or folate increases their selectivity towards cancer cells. Moreover, smart nanostructures, including pH-, redox- and light-responsive are optimized for siRNA and DOX delivery and tumor treatment.