minocycline hydrochloride

Definition / meaning of minocycline hydrochloride

The hydrochloride salt of minocycline, a broad spectrum long-acting derivative of the antibiotic tetracycline, with antibacterial and anti-inflammatory activities. Minocycline binds to the bacterial 30S ribosomal subunit and interferes with the binding of tRNA to the ribosomal complex, thereby inhibiting protein translation in bacteria. In addition, minocycline inhibits the inflammatory enzyme 5-lipoxygenase (5LOX) and may impede T cell-microglia interactions; both activities may contribute to minocycline’s neuroprotective effects. 5LOX catalyzes the synthesis of inflammatory mediators such as prostaglandins and leukotrienes.

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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