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Hydroxychloroquine activates apoptotic process. 140 / 140
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"The expression of cleaved Caspase 3 was subsequently confirmed by western blotting and immunofluorescent staining, which showed that the combination of HCQ with oxaliplatin increased the apoptotic cell death in compressed cells as compared to the respective oxaliplatin-only-treated cells (Fig. 3b–d)."
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"Application of the autophagy inhibitor, hydroxychloroquine (HCQ) (10 microM), promoted apoptosis of primary HCC cells under hypoxic cultivation and 5-FU treatment, as evidenced by the increased expression of cleaved caspase-3 and cleaved caspase-8 (XREF_FIG) and inhibition of proliferation, as measured via MTT assays (XREF_FIG)."
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"In addition to these drugs, chloroquine and its derivative hydroxychloroquine have also demonstrated an ability to interact with nucleotides and induce apoptosis, having shown antitumor, antiproliferative and antimutagenic properties, since they are autophagy inhibitors and, therefore, prevent cancer cells from using autophagy to acquire energy and nutrients [5,17]."
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"HCQ alone produced decreased cell growth and induction of caspase-dependent apoptosis in all S45F mutated DT cells tested but had no effect in T41A-mutated DT cells, confirming our previous results that S45F-mutated DT cell strains are highly dependent on autophagy instead of apoptosis."
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"These effects were blocked by bafilomycin A1, which prevents degradation of LC3, induces its accumulation in autophagolysosomes [66] and acts as an inhibitor of the vacuolar-type H+-ATPase, changing endosomal pH [67], showing that hydroxychloroquine activated apoptosis via lysosomes instead of other organelles (mitochondria or nuclei, for example)."
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"HCQ have been shown to inhibit prolifer-ation, to upregulate apoptosis, and may downregu-late autoimmunity by elimination of autoreactive human lymphocytes.20,21 The 13 patients with lupusnephritis who received prednisolone, HCQ plus CTX or MMF also had an increasing CD24hiCD27+ CD19+ B cell subset."
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"The present study showed that PL-induced autophagy had a cytoprotective effect in A375P cells and that co-treatment with PL + HCQ enhanced apoptosis to inhibit late autophagy for a stronger anticancer effect.The present study investigated the roles of ERK and JNK by pretreating A375P cells with p-ERK inhibitor PD98059 or p-JNK inhibitor SP600125, followed by treatment with PL and cell survival measurement using MTT assay."
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"Additionally, HCQ induces apoptosis of autoreactive T-cells and interferes with antigen processing by B-cells, thereby interfering with their functions and cytokine production (interleukin [IL]-1, IL-6, interferon-gamma, tumour necrosis factor [TNF], and B-cell activating factor) [XREF_BIBR, XREF_BIBR]."
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"Hydroxychloroquine (HCQ) significantly enhanced the apoptosis of ponatinib-resistant CML cells both in vitro and in vivo, suggesting a potential therapeutic avenue to address resistance.Another investigation by Elshazly et al. [93] examined the elevated levels of autophagy in resistant CML cell lines compared to their parental counterparts in which lapatinib-resistant cells exhibited increased autophagosome accumulation."
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"A microplate reader (Infinite PRO 200) was used to measure the absorbance at 492 nm after shaking the 96-well plate for 1 min.An APOPercentage stain (Biocolor Ltd. Northern Ireland) was used to measure the amount of apoptosis triggered by HCQ in the ARPE19 cells at 550 nm in a spectrophotometer (UV-1800, Shimadzu Corporation, Kyoto, Japan)."
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"The hypothesis that CQ might afford Ebola prophylaxis comes from our own work showing hydroxychloroquine (HCQ) induces apoptosis (programmed cell death) in peripheral blood mononuclear cells.2 HCQ also inhibits the replication of HIV in vitro.3There is a possible clinical analogy."
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"Since there is evidence that HCQ has a potential application in cancer treatment for its inhibition of autophagy in leukemic, breast cancer MCF-7 and melanoma cells and may subsequently induce their apoptosis, this process may also be important to the actions of HCQ in cervical cancer cells."
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"Fauzi et al. [117] showed how HCQ and CQ induced apoptosis in ATLL [117]: both molecules restored the expression of p47, blocking autophagy inside affected cells and sequentially inhibiting the activation of the NF-κB pathway, leading to apoptosis in ATLL cell lines.There has also been an isolated clinical case of treatment of CTCLs with HCQ [118], while it is also known that several case reports use the same substance to treat diverse forms of follicular mucinosiss [119,120]."
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"DC661 and hydroxychloroquine significantly induced the apoptosis of ascites PDOs, increasing the ratio of CC3/KI67 positive cells compared with untreated control and mTORC1 inhibitors treated PDOs, confirming that autophagy inhibition caused failed paligenosis and subsequently induce apoptosis (Fig. 7g,h)."