Hemiscorpius lepturus venom induces expression and production of interluckin-12 in human monocytes.
The objective of this study was to evaluate the capacity of the venom from Hemiscorpius lepturus to induce expression and production of interleukin-12 (IL-12) on isolated human monocytes. For this purpose, isolated human monocytes (250,000-300,000 cells/ml) were exposed to different concentrations of the venom (0.625, 1.25, 2.5, 5, 10 and 20 μg/ml) in 96-well plates for varying incubation periods (6, 12, and 24 h). The end point of assessment included LDH cytotoxicity assay, measurement of expression of IL-12,p40 mRNA by real-time PCR, and quantification of IL-12 release using sandwich ELISA technique. The results showed that this venom produced concentration- and time of incubation-dependent cytotoxicity. The level of enhancement of expression and production of IL-12 were found significantly higher with lowest concentration and after 6 h of incubation. The findings demonstrated that the venom from this scorpion contains active constituents which can direct the immune system to produce IL-12.
Toxicology Research Center and Immunology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Immunology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Reza
R
Hadaddezfuli
Immunology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Ali
A
Khodadadi
Immunology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Electronic address: assarehma@gmail.com.
Mohammad-Ali
MA
Assarehzadegan
Toxicology Research Center, Ahvaz Jundishapur University and Pharmacology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Mohammad Hassan
MH
Pipelzadeh
Immunology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Samahir
S
Saadi
D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D018664:Interleukin-12 / Q000096:biosynthesis*; D009000:Monocytes / Q000187:drug effects* / Q000378:metabolism; D016133:Polymerase Chain Reaction; D012333:RNA, Messenger / Q000378:metabolism; D012604:Scorpion Venoms / Q000494:pharmacology*
D012333:RNA, Messenger; D012604:Scorpion Venoms; D018664:Interleukin-12
Cytotoxicity; Hemiscorpius lepturus; Interleukin-12; Monocytes; mRNA expression