Ctenus is a
genus of
wandering spiders first described by
Charles Athanase Walckenaer in 1805.[2] It is widely distributed, from South America through Africa to East Asia.[1] Little is known about the toxic potential of the genus Ctenus; however, Ctenus medius has been shown to share some toxic properties with Phoneutria nigriventer, such as
proteolytic,
hyaluronidase and
phospholipase activities, in addition to producing
hyperalgesia and
edema. The venom of C. medius also interferes with the
complement system in concentrations in which the venom of P. nigriventer is inactive, indicating that some species in the genus may have a medically significant venom.[3] The venom of C. medius interferes with the
complement component 3 (C3) of the complement system; it affects the central factor of the cascades of the complement, and interferes with the lytic activity of this system, which causes stronger activation and consumption of the complement components. Unlike C. medius, the venom of P. nigriventer does not interfere with lytic activity.[3]
Species
As of August 2022[update] it contains 157 species:[1]
^Walckenaer, C. A. (1805). Tableau des aranéides ou caractères essentiels des tribus, genres, familles et races que renferme le genre Aranea de Linné, avec la désignation des espèces comprises dans chacune de ces divisions. Paris: Dentu.
OCLC602364691.
Ctenus is a
genus of
wandering spiders first described by
Charles Athanase Walckenaer in 1805.[2] It is widely distributed, from South America through Africa to East Asia.[1] Little is known about the toxic potential of the genus Ctenus; however, Ctenus medius has been shown to share some toxic properties with Phoneutria nigriventer, such as
proteolytic,
hyaluronidase and
phospholipase activities, in addition to producing
hyperalgesia and
edema. The venom of C. medius also interferes with the
complement system in concentrations in which the venom of P. nigriventer is inactive, indicating that some species in the genus may have a medically significant venom.[3] The venom of C. medius interferes with the
complement component 3 (C3) of the complement system; it affects the central factor of the cascades of the complement, and interferes with the lytic activity of this system, which causes stronger activation and consumption of the complement components. Unlike C. medius, the venom of P. nigriventer does not interfere with lytic activity.[3]
Species
As of August 2022[update] it contains 157 species:[1]
^Walckenaer, C. A. (1805). Tableau des aranéides ou caractères essentiels des tribus, genres, familles et races que renferme le genre Aranea de Linné, avec la désignation des espèces comprises dans chacune de ces divisions. Paris: Dentu.
OCLC602364691.