Open AccessHemin activation abrogates Mycoplasma hyorhinis replication in chronically infected prostate cancer cells via heme oxygenase‐1 induction
Author(s) -
Huang Hanxia,
Dabrazhynetskaya Alena,
Pluznik Jacob,
Zheng Jiwen,
Wu Yong,
Chizhikov Vladimir,
Buehler Paul W.,
Yamada Kenneth M.,
Dhawan Subhash
Publication year - 2021
Publication title -
febs open bio
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.718
H-Index - 31
ISSN - 2211-5463
DOI - 10.1002/2211-5463.13271
Subject(s) - hemin , lncap , heme oxygenase , heme , biology , intracellular , cancer cell , microbiology and biotechnology , cancer research , enzyme , cancer , biochemistry , genetics
Mycoplasma hyorhinis ( M. hyorhinis ) lacks a cell wall and resists multiple antibiotics. We describe here the striking > 90% inhibitory effect of hemin, a natural inducer of the cytoprotective enzyme heme oxygenase‐1 (HO‐1), on M. hyorhinis replication in chronically infected LNCaP prostate cancer cells. The role of HO‐1 in interrupting M. hyorhinis replication was confirmed by HO‐1‐specific siRNA suppression of hemin‐induced HO‐1 protein expression, which increased intracellular M. hyorhinis DNA levels in LNCaP cells. Proteomic analysis and transmission electron microscopy of hemin‐treated cells confirmed the complete absence of M. hyorhinis proteins and intact microorganisms, respectively, strongly supporting these findings. Our study is the first to our knowledge suggesting therapeutic potential for activated HO‐1 in cellular innate responses against mycoplasma infection.