Expression analysis of centrin gene in promastigote and amastigote forms of leishmania infantum iranian isolates: a promising target for live attenuated vaccine development against canine leishmaniasis

• Published in: BMC veterinary research Vol. 17; no. 1; p. 162
• Main Authors: Abbaszadeh Afshar, Mohammad Javad, Elikaee, Samira, Saberi, Reza, Mohtasebi, Sina, Mohebali, Mehdi
• Format: Journal Article
• Language: English
• Published: England BioMed Central Ltd 14.04.2021; BioMed Central; BMC
• Subjects: Amastigotes; Canine leishmaniasis; Cell culture; Cell division; Centrin gene; Control; Diseases; Dogs; Gene expression; Genetic aspects; Intracellular; Leishmania; Leishmania infantum; Leishmaniasis; Parasite vaccines; Parasites; Parasitic diseases; Parasitological research; Phosphoproteins; Polymerase chain reaction; Promastigotes; Proteins; Real‐time RT-PCR; Restriction fragment length polymorphism; Reverse transcription; Statistical analysis; Vaccine development; Vaccines; Virulence; Zoonoses; Iran; Centrin gene; Real‐time RT-PCR; Canine leishmaniasis; Leishmania infantum; Gene expression
• ISSN: 1746-6148; 1746-6148
• DOI: 10.1186/s12917-021-02816-x

Leishmania parasites express various essential proteins in different growth phases (logarithmic/stationary) and forms (promastigote/amastigote). Targeting the genes encoding such proteins paves the way for controlling these parasites. Centrin is an essential gene, which its protein product seems to be vital for the proliferation of Leishmania parasites. Herein, this study was contrived to analyze the expression level of the centrin gene in different growth phases and forms of Leishmania infantum (L. infantum) parasites isolated from various endemic areas of canine leishmaniasis (CanL) in Iran. All three collected isolates were identified as L. infantum using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Real-time reverse transcription (RT)-PCR revealed a statistically significant up-regulation (3.13-fold) in the logarithmic phase promastigotes compared to stationary ones (p < 0.01), whereas centrin was expressed equally in intracellular amastigotes at different time points during cell culture. Also, our finding revealed a slight up-regulation of the centrin gene (1.22-fold) in the intracellular amastigotes compared to logarithmic phase promastigotes, which was found statistically non-significant (p > 0.05). Centrin gene in Iranian isolates of L. infantum is more expressed in exponential than stationary phases and seems to be considered as a promising target in the development of a genetically modified live attenuated vaccine for CanL control.