Lysosomotropic agent chloroquine

Discussion in 'Online Canadian Pharmacy' started by Igor_Dolbin, 27-Feb-2020.

  1. senders Well-Known Member

    Lysosomotropic agent chloroquine


    Note: based on a RGCC chemosensitivity analysis I have seen at a German clinic, Hydroxychloroquine has been effective in killing the cancer cells of 5 out 7 patients that were tested. It is one of very few available drugs that inhibits autophagy, a mechanism associated with its anticancer properties.

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    The CD163 scavenger receptor pathway for HbHp complexes is an essential mechanism of protection against the toxicity of extracellular hemoglobin Hb, which can accumulate in the vasculature and within tissues during hemolysis. Chloroquine is a lysosomotropic agent, which has been extensively used as an antimalarial drug in the past, before parasite resistance started to limit its efficacy in. Lysosomotropic agents e.g. chloroquine, accumulate preferentially in the lysosomes of cells in the body. These agents tend to have both lipophilic or amphiphilic compounds with basic moieties. Once inside the acidic environment of the lysosome, the drug becomes protonated and trapped in the organelle 2. Treatment of cells with the macrolide antibiotic bafilomycin A1, an inhibitor of vacuolar V-ATPase, or with the lysosomotropic agent chloroquine, has been shown to pharmacologically inhibit autophagy as evidenced by an accumulation of autophagosomes, which in turn causes Bax-dependent apoptosis. However, bafilomycin A1 has also been reported to inhibit chloroquine-induced apoptosis.

    In cancer, authophagy is the process used by cancer cells to “self-eat” in order to survive. Specifically, if authophagy is prolonged this will become a lethal process to cancer. duing chemotheraphy, radiotheraphy, etc.) authophagy is used by cancer cells to survive. However, note that Chloroquine has other properties as well that may be very well related to anti cancer mechanism, such as zinc ionophore, and others (see below the section on mechanisms).

    Lysosomotropic agent chloroquine

    Enhanced plasmid DNA transfection with lysosomotropic agents., Lysosomal Trapping Lysosomotropism Assay

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  3. Chagas disease is treated with chloroquine t f
  4. Aug 24, 2017 There has been long-standing interest in targeting pro-survival autophagy as a combinational cancer therapeutic strategy. Clinical trials are in progress testing chloroquine CQ or its.

    • Lysosomotropism depends on glucose a chloroquine resistance..
    • Bafilomycin A1 Inhibits Chloroquine-Induced Death of..
    • Macroautophagy is dispensable for growth of KRAS mutant..

    Oct 01, 2014 Chloroquine is an established antimalarial agent that has been recently tested in clinical trials for its anticancer activity. The favorable effect of chloroquine appears to be due to its ability to sensitize cancerous cells to chemotherapy, radiation therapy, and induce apoptosis. Chloroquine is a lysosomotropic agent that causes marked changes in intracellular protein processing and trafficking and extensive autophagic vacuole formation. Chloroquine may be cytotoxic and has been used as a model of lysosomal-dependent cell death. Rationales for lysosomotropic amines. Chloroquine is a diprotic weak base pK a1 = 8.1, pK a2 = 10.2 at 37°C that can exist in both protonated and unprotonated forms Figure 2 and Table 2. Unprotonated chloroquine can diffuse freely and rapidly across the membranes of cells and organelles to acidic cytoplasmic vesicles late endosomes and.

     
  5. FokusNick XenForo Moderator

    Hydroxychloroquine is a quinoline medicine used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Hydroxychloroquine - Side Effects, Dosage, Interactions. Bactrim and Plaquenil drug interactions - eHealthMe HYDROXYCHLOROQUINE - Hydroxychloroquine sulfate
     
  6. MuZoN New Member

    Despite Plaquenil dosing recommendations, retinal toxicity. The American Academy of Ophthalmology has published several dosing and screening recommendations for hydroxychloroquine to avoid potential retinal toxicity, yet some patients still experience permanent vision loss resulting from hydroxychloroquine retinopathy due to improper dosing of the drug and improper screening.

    Recommendations on Screening for Chloroquine
     
  7. cguru Moderator

    Eye screening for patients taking hydroxychloroquine Plaquenil Macular Society Eye screening for patients taking hydroxychloroquine. Hydroxychloroquine is a medication used to treat several conditions including rheumatoid arthritis, systemic lupus erythematosus, some skin conditions especially photosensitive ones and others that involve inflammation.

    Hydroxychloroquine Plaquenil Toxicity and Recommendations.