Bovine pathogenic Clostridium surface receptors (None)

Bovine pathogenic Clostridium surface receptors refer to a heterogeneous group of host cell membrane proteins and molecules that serve as the primary binding sites for toxins and surface-associated virulence factors produced by pathogenic Clostridium species in cattle. These species, including Clostridium perfringens, Clostridium chauvoei, and Clostridium septicum, cause severe and often fatal diseases such as blackleg, enterotoxemia, and malignant edema. The receptors are molecularly diverse and include claudins (targeted by C. perfringens enterotoxin), the myelin and lymphocyte (MAL) protein (targeted by epsilon toxin), P2X7 purinergic receptors (targeted by beta toxin), and Toll-like receptors such as TLR5 (which recognizes flagellin). Binding to these receptors is a prerequisite for toxin-mediated pore formation, enzymatic degradation of the cell membrane, or the induction of pro-inflammatory signaling, all of which contribute to rapid tissue necrosis and systemic toxemia (Source: 10.2.2, 10.2.3, 10.2.4). In the livestock industry, these receptors are not typically targeted by direct pharmacological antagonists. Instead, the therapeutic and preventive focus is on neutralizing the bacterial ligands (toxins and surface antigens) before they can engage these receptors. This is achieved through the administration of multivalent bacterin-toxoid vaccines, which induce protective humoral immunity, and the use of specific antitoxins for passive immunization in acute cases (Source: 8.1.5, 10.1.3). While the term is often used collectively to describe the host-pathogen interface, it may also refer to bacterial surface-associated proteins like flagellin and S-layer proteins, which are the primary targets for the development of recombinant vaccines (Source: 10.1.1, 10.2.1).

Other names

Host receptors for clostridial toxinsClostridial toxin receptorsBovine clostridial receptorsClostridial surface-associated proteins

Vaccines and antitoxins induce or provide antibodies that neutralize bacterial toxins and opsonize vegetative cells, thereby preventing their interaction with host surface receptors; antibiotics inhibit bacterial growth to reduce toxin production.