Chloroquine lysing the endosome

Discussion in 'Canadian Pharmacy Online' started by krat, 20-Mar-2020.

  1. vbirj Guest

    Chloroquine lysing the endosome


    Chloroquine has been extensively used in mass drug administrations, which may have contributed to the emergence and spread of resistance. It is recommended to check if chloroquine is still effective in the region prior to using it.

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    Chloroquine was shown to inhibit LPS-induced activation of extracellular signal-regulated kinase ERK 1/2 in human PBMCs and the expression of the TNF-α promoter-driven reporter gene in human monocytic THP-1 cells, suggesting that chloroquine blocks transcription of the TNF-α gene by interfering in LPS-induced activation of the ERK1/2 signalling pathway. The chloroquine-induced decrease in IL-1β and IL-6 mRNA has not been studied in detail, and the underlying mechanism is unknown. The TLR pathway is then activated, and IFN-α is secreted by these activated pDCs. As chloroquine could potentially inhibit the acidification of the endosome, where the most important steps in pDC activation occurs, it might have potential uses as an anti-AIDS drug by acting to inhibit immune activation and slow disease progression. Chloroquine is the generic form of the brand-name prescription medicine Aralen, which is used to prevent and treat malaria — a mosquito-borne disease caused by a parasite — and to treat amebiasis, an infection of the intestines caused by a parasite.

    The Centers for Disease Control and Prevention recommend against treatment of malaria with chloroquine alone due to more effective combinations. In areas where resistance is present, other antimalarials, such as mefloquine or atovaquone, may be used instead.

    Chloroquine lysing the endosome

    Chloroquine Indications, Side Effects, Warnings -, Inhibitory effects of chloroquine on the. - PubMed Central PMC

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  7. Effect of chloroquine treatment on the levels of endosome-binding proteins in PC12 cells. PC12 cells were treated with 1 μM chloroquine for 5 days. A Cell lysates were subjected to Western blotting using CTB-HRP and specific antibodies.

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    Chloroquine promotes escape of polyplexes or lipoplexes from endosome via increasing endosomal pH and hindering endosome fusion with lysosome. To date, chloroquine has been widely used to elucidate the uptake mechanism of non-viral nucleic acid delivery systems Legendre and Szoka Jr 1992 ; Simeoni, Morris et al. 2003 ; Lehto, Abes et al. 2010. Chemical treatment of cells with an endosomal trafficking inhibitor that blocks endosome progression, bafilomycin A1, resulted in a significant decrease in eTE. However, treatment of cells with lysosomotropic agents chloroquine and ammonium chloride had little effects on eTE. Since chloroquine inhibited SARS-CoV infection when added before or after infection, we hypothesized that another common lysosomotropic agent, NH 4 Cl, might also function in a similar manner. Ammonium chloride has been widely used in studies addressing endosome-mediated virus entry.

     
  8. CatFish User

    Download PDF Many systemic medications may cause retinal toxicity. Mechanism of action of hydroxychloroquine as an antirheumatic. Hydroxychloroquine - Wikipedia Two generic drugs being tested in U. S. in race to find.
     
  9. S2din XenForo Moderator

    Hydroxychloroquine-Induced Pigmentation in Patients With. Hydroxychloroquine-induced pigmentation lesions usually begin after a few months or years of treatment. When we compared our patients with the controls, we found no significant association with the duration of HCQ treatment or with the cumulative dose of HCQ.

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