We are analyzing https://link.springer.com/article/10.1007/s11418-012-0722-3.

Title:
The phytoalexin camalexin mediates cytotoxicity towards aggressive prostate cancer cells via reactive oxygen species | Journal of Natural Medicines
Description:
Camalexin is a phytoalexin that accumulates in various cruciferous plants upon exposure to environmental stress and plant pathogens. Besides moderate antibacterial and antifungal activity, camalexin was reported to also exhibit antiproliferative and cancer chemopreventive effects in breast cancer and leukemia. We studied the cytotoxic effects of camalexin treatment on prostate cancer cell lines and whether this was mediated by reactive oxygen species (ROS) generation. As models, we utilized LNCaP and its aggressive subline, C4-2, as well as ARCaP cells stably transfected with empty vector (Neo) control or constitutively active Snail cDNA that represents an epithelial to mesenchymal transition (EMT) model and displays increased cell migration and tumorigenicity. We confirmed previous studies showing that C4-2 and ARCaP-Snail cells express more ROS than LNCaP and ARCaP-Neo, respectively. Camalexin increased ROS, decreased cell proliferation, and increased apoptosis more significantly in C4-2 and ARCaP-Snail cells as compared to LNCaP and ARCaP-Neo cells, respectively, while normal prostate epithelial cells (PrEC) were unaffected. Increased caspase-3/7 activity and increased cleaved PARP protein shown by Western blot analysis was suggestive of increased apoptosis. The ROS scavenger N-acetyl cysteine (NAC) antagonized the effects of camalexin, whereas the addition of exogenous hydrogen peroxide potentiated the effects of camalexin, showing that camalexin is mediating its effects through ROS. In conclusion, camalexin is more potent in aggressive prostate cancer cells that express high ROS levels, and this phytoalexin has a strong potential as a novel therapeutic agent for the treatment of especially metastatic prostate cancer.
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article, google, scholar, pubmed, cancer, cas, prostate, cells, cell, camalexin, apoptosis, reactive, oxygen, species, ros, death, increased, caspase, res, content, mezencev, oderomarah, stress, effects, transition, activation, biol, privacy, cookies, journal, research, phytoalexin, aggressive, snail, epithelial, access, med, oxidative, publish, search, chetram, treatment, lncap, hydrogen, peroxide, epithelialmesenchymal, human, chung, phytoalexins, author,

Topics {✒️}

gamma radiation-induced apoptosis month download article/chapter antagonizing p53-mediated apoptosis reactive oxygen species arcap-snail cells express induced epithelial–mesenchymal transition oxidative stress-induced apoptosis t-leukemia jurkat cells roman mezencev full article pdf metastatic prostate cancer privacy choices/manage cookies prostate cancer cells human population studies slug mediate radioresistance author information authors cancer chemoprevention research lipid peroxidation products arcap-snail cells chronic immune activation snail1 transcriptional factor ovarian cancer cells camalexin induces apoptosis odero-marah department decreased cell proliferation lung cancer tissue comp biochem physiol european economic area natural medicines aims arctigenin induces necroptosis related subjects inhibits cellular senescence nf-kappab ligand meyskens fl jr lambeth jd capsella bursa-pastoris mesencephalic dopaminergic neurons don-salu-hewage nih grants 5p20md002285 brawley drive sw arcap-neo cells snail-mediated regulation conditions privacy policy camalexin increased ros epithelial–mesenchymal transitions western blot analysis thiery jp hydrogen peroxide generation oxidation-damaged dna minor dietary constituents

Questions {❓}

Fruehauf JP, Meyskens FL Jr (2007) Reactive oxygen species: a breath of life or death?

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         description:Camalexin is a phytoalexin that accumulates in various cruciferous plants upon exposure to environmental stress and plant pathogens. Besides moderate antibacterial and antifungal activity, camalexin was reported to also exhibit antiproliferative and cancer chemopreventive effects in breast cancer and leukemia. We studied the cytotoxic effects of camalexin treatment on prostate cancer cell lines and whether this was mediated by reactive oxygen species (ROS) generation. As models, we utilized LNCaP and its aggressive subline, C4-2, as well as ARCaP cells stably transfected with empty vector (Neo) control or constitutively active Snail cDNA that represents an epithelial to mesenchymal transition (EMT) model and displays increased cell migration and tumorigenicity. We confirmed previous studies showing that C4-2 and ARCaP-Snail cells express more ROS than LNCaP and ARCaP-Neo, respectively. Camalexin increased ROS, decreased cell proliferation, and increased apoptosis more significantly in C4-2 and ARCaP-Snail cells as compared to LNCaP and ARCaP-Neo cells, respectively, while normal prostate epithelial cells (PrEC) were unaffected. Increased caspase-3/7 activity and increased cleaved PARP protein shown by Western blot analysis was suggestive of increased apoptosis. The ROS scavenger N-acetyl cysteine (NAC) antagonized the effects of camalexin, whereas the addition of exogenous hydrogen peroxide potentiated the effects of camalexin, showing that camalexin is mediating its effects through ROS. In conclusion, camalexin is more potent in aggressive prostate cancer cells that express high ROS levels, and this phytoalexin has a strong potential as a novel therapeutic agent for the treatment of especially metastatic prostate cancer.
         datePublished:2012-11-24T00:00:00Z
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      description:Camalexin is a phytoalexin that accumulates in various cruciferous plants upon exposure to environmental stress and plant pathogens. Besides moderate antibacterial and antifungal activity, camalexin was reported to also exhibit antiproliferative and cancer chemopreventive effects in breast cancer and leukemia. We studied the cytotoxic effects of camalexin treatment on prostate cancer cell lines and whether this was mediated by reactive oxygen species (ROS) generation. As models, we utilized LNCaP and its aggressive subline, C4-2, as well as ARCaP cells stably transfected with empty vector (Neo) control or constitutively active Snail cDNA that represents an epithelial to mesenchymal transition (EMT) model and displays increased cell migration and tumorigenicity. We confirmed previous studies showing that C4-2 and ARCaP-Snail cells express more ROS than LNCaP and ARCaP-Neo, respectively. Camalexin increased ROS, decreased cell proliferation, and increased apoptosis more significantly in C4-2 and ARCaP-Snail cells as compared to LNCaP and ARCaP-Neo cells, respectively, while normal prostate epithelial cells (PrEC) were unaffected. Increased caspase-3/7 activity and increased cleaved PARP protein shown by Western blot analysis was suggestive of increased apoptosis. The ROS scavenger N-acetyl cysteine (NAC) antagonized the effects of camalexin, whereas the addition of exogenous hydrogen peroxide potentiated the effects of camalexin, showing that camalexin is mediating its effects through ROS. In conclusion, camalexin is more potent in aggressive prostate cancer cells that express high ROS levels, and this phytoalexin has a strong potential as a novel therapeutic agent for the treatment of especially metastatic prostate cancer.
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