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Chloroquine (CQ) then becomes protonated (to CQ 2+), as the digestive vacuole is known to be acidic (pH 4.7); chloroquine then cannot leave by diffusion. Chloroquine caps hemozoin molecules to prevent further biocrystallization of heme, thus leading to heme buildup. Chloroquine binds to heme (or FP) to form the FP-chloroquine complex; this ...
As a result, the entire antibody, linker and cytotoxic (anti-cancer) agent enter the targeted cancer cell where the antibody is degraded into an amino acid. The resulting complex – amino acid, linker and cytotoxic agent – is considered to be the active drug. In contrast, cleavable linkers are detached by enzymes in the cancer cell. The ...
Chloroquine and hydroxychloroquine are anti-malarial medications also used against some auto-immune diseases. [51] Chloroquine, along with hydroxychloroquine, was an early experimental treatment for COVID-19. [52] Neither drug has been useful to prevent or treat SARS-CoV-2 infection.
Cancer research is research into cancer to identify causes and develop strategies for prevention, diagnosis, treatment, and cure. Cancer research ranges from epidemiology, molecular bioscience to the performance of clinical trials to evaluate and compare applications of the various cancer treatments.
Chloroquine and hydroxychloroquine are anti-malarial medications also used against some auto-immune diseases. [1] Chloroquine, along with hydroxychloroquine, was an early experimental treatment for COVID-19. [2] Neither drug has been useful to prevent or treat SARS-CoV-2 infection.
Narrow-spectrum antibiotics have low propensity to induce bacterial resistance and are less likely to disrupt the microbiome (normal microflora). [3] On the other hand, indiscriminate use of broad-spectrum antibiotics may not only induce the development of bacterial resistance and promote the emergency of multidrug-resistant organisms, but also cause off-target effects due to dysbiosis.
For example, methotrexate is used as cancer chemotherapy because it can prevent neoplastic cells from dividing. [1] [2] Bacteria also need DHFR to grow and multiply and hence inhibitors selective for bacterial vs. host DHFR have found application as antibacterial agents. [3] Tetrahydrofolate synthesis pathway
With regard to antibiotics, antivirals, and other agents indicated for treatment of infectious pathological disease, drugs of last resort are commonly withheld from administration until after the trial and failure of more commonly used treatment options to prevent the development of drug resistance.