Toll-Like Receptor (TLRs) Play Role in Adaptive Immunity in Rabbits Immunized by Sarcoptes scabiei Protein

• Main Authors: Nunuk Dyah Retno Lastuti, Fedik Abdul Rantam, Poedji Hastutiek, Dony Chrismanto
• Format: Article PeerReviewed
• Language: English; English; English
• Published: Faculty of Veterinary Medicine University Airlangga 2017
• Subjects: SF451-455 Rabbits and hares; SF811-909 Veterinary medicine of special organs, regions, and systems
• Online Access: http://repository.unair.ac.id/98829/1/Bukti%20C%2025%20Toll-Like%20Receptor%20%28TLRs%29%20Play%20Role%20..._compressed.pdf; http://repository.unair.ac.id/98829/2/Peer%20review%20C%2025%20Toll-Like%20Receptor%20%28TLRs%29%20Play%20Role%20in%20....pdf; http://repository.unair.ac.id/98829/3/25.%20Toll-Like%20Receptors%20%28TLRs%29%20Play%20Role%20in%20Adaptive%20....pdf; http://repository.unair.ac.id/98829/; https://knepublishing.com/index.php/Kne-Life/article/view/1100
• Institution: Universitas Airlangga

Sarcoptic mange is one of the most economically important diseases in goats in Indonesia, and increasing number of cases of treatment failure is being reported because of drug resistance. Nowadays, it is considered as an emerging/re-emerging parasitic disease that threatens human and animal health globally. Toll-Like Receptors (TLR) is a receptor which plays role in innate immunity due to microbial infection. TLR-5 is a receptor that can recognize ligand produced by bacterial component, and TLR-7 is involved in the recognition of ligand that similar to ssRNA virus. This research aims are to detect Sarcoptes scabiei antigenic protein which can induce cellular immune response in rabbit as adaptive immunity with TLR-5 and TLR-7 as marker.This research was performed in several stages: isolation and identification S. scabiei from scabies infected goats; extraction of soluble protein S.scabiei mite, the rabbit immunization by inoculating protein antigen S. scabiei with dosage of 500μg, repeated five times as booster in two weeks, the examination of TLR-5 and TLR-7 expression using direct immunofluorescence technique. The result of cellular immune response is shown by TLR-5 and TLR-7 expression in rabbit T limphocytes which appear yellow to green fluorescence color using fluorescence microscope. The amount of fluoresnce T lymphocytes showed a significant difference (p<0.05) between control and various boosters, and significantly increased in 3rd booster or 42 days post immunization. The conclusion showed protein from S. scabiei mites taken from goat contains ligands, acting as receptors which involve in pathogen associated molecular pattern (PAMP) that can induce adaptive immunity and recognized by TLR-5 and TLR-7. It shows that TLR is not only involved in innate immunity but also in adaptive immunity, and can be used as alternative adjuvant development. Keywords: Sarcoptes scabiei, TLR- 5, TLR-7, goats, rabbits