Rhipicephalus microplus Bm86 antigen (Bm86)

Rhipicephalus microplus antigens, specifically the Bm86 glycoprotein, serve as critical molecular targets for the control of the southern cattle tick, a major vector for bovine diseases. Bm86 is a membrane-bound protein located on the surface of the tick's midgut epithelial cells, where it plays a vital role in maintaining the structural integrity of the digestive tract during blood feeding [1][2]. Unlike traditional chemical acaricides, these antigens are used in veterinary vaccines to stimulate a host immune response. When the tick feeds on a vaccinated animal, it ingests specific anti-Bm86 antibodies that bind to the midgut wall, triggering complement-mediated lysis or physical disruption of the digestive cells [3]. This immunological attack leads to tick death or significant reductions in feeding efficiency and reproductive output. Furthermore, targeting these antigens helps reduce the transmission of tick-borne pathogens like Babesia bovis and Anaplasma marginale by decreasing the overall tick population density [4]. Ongoing research also explores related antigens like Bm95 and Subolesin to broaden the spectrum of protection against different tick strains and species.

Other names

Bm86 proteinCattle tick midgut antigenBm95 antigenRhipicephalus microplus midgut glycoproteinSubolesin (related antigen)

Induces the production of host-specific IgG antibodies that, upon ingestion by the tick, bind to the midgut epithelial surface, causing lysis of the digestive cells and impairing the tick's ability to survive and reproduce.