CYST FORMATION FROM VIRULENT RH STRAIN OF TOXOPLASMA GONDII TACHYZOITE: IN VITRO CULTIVATION

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SALIMI MAHBOOBEH; SHOJAEE SAEEDEH; KESHAVARZ HOSSEIN; MOHEBALI MEHDI

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Journal: IRANIAN JOURNAL OF PARASITOLOGY Year:2016 | Volume:11 | Issue:1 Page(s): 81-85

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Title

CYST FORMATION FROM VIRULENT RH STRAIN OF TOXOPLASMA GONDII TACHYZOITE: IN VITRO CULTIVATION

Author(s)

SALIMI MAHBOOBEH | SHOJAEE SAEEDEH | KESHAVARZ HOSSEIN | MOHEBALI MEHDI | Issue Writer Certificate

Keywords

TOXOPLASMA GONDII

RH STRAIN

CELL CULTURE

CYST

Abstract

Background: This study was performed to induce conversion of RH STRAIN tachyzoites of TOXOPLASMA GONDII to bradyzoites by pH changing of the culture medium.Methods: HeLa cell monolayers were infected at a 1: 1 tachyzoite to cell ratio. Four hours after infection, the culture medium was removed and re-placed with culture medium and 5% FCS, adjusted to pH 8 with NaOH. The culture was maintained at 37 °C without CO2 until the end of the experiment. CYST-like structures were collected and stained with periodic acid schiff (PAS) staining method. The soluble antigens of CYST-like structures of RH STRAIN, in addition to RH tachyzoite, bradyzoites of avirulent Tehran strain and uninfected HeLa cells were electrophoresed on 12.5% poly-acrylamide gel. The gel was stained by coomassie brilliant blue R-250.Results: Four days after infection of HeLa cells with tachyzoites of T. gondii, RH STRAIN, CYST- like structures were noticed and stained with PAS. In the SDS-PAGE, protein bands of these structures had some differences with tachyzoites of RH STRAIN, but there was quite similarity between protein bands of these structures and tissue CYSTs (bradyzoites) of Tehran strains. P34 and P36 (bradyzoite-specific proteins) were observed only in T. gondii bradyzoites of RH (cyst like structures) and bradyzoites of Tehran strains.Conclusion: Alkalization of culture medium to pH 8 induced expression of bradyzoite- specific proteins and production of RH CYSTs in CELL CULTURE.

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APA: Copy

SALIMI, MAHBOOBEH, SHOJAEE, SAEEDEH, KESHAVARZ, HOSSEIN, & MOHEBALI, MEHDI. (2016). CYST FORMATION FROM VIRULENT RH STRAIN OF TOXOPLASMA GONDII TACHYZOITE: IN VITRO CULTIVATION. IRANIAN JOURNAL OF PARASITOLOGY, 11(1), 81-85. SID. https://sid.ir/paper/304067/en

Vancouver: Copy

SALIMI MAHBOOBEH, SHOJAEE SAEEDEH, KESHAVARZ HOSSEIN, MOHEBALI MEHDI. CYST FORMATION FROM VIRULENT RH STRAIN OF TOXOPLASMA GONDII TACHYZOITE: IN VITRO CULTIVATION. IRANIAN JOURNAL OF PARASITOLOGY[Internet]. 2016;11(1):81-85. Available from: https://sid.ir/paper/304067/en

IEEE: Copy

MAHBOOBEH SALIMI, SAEEDEH SHOJAEE, HOSSEIN KESHAVARZ, and MEHDI MOHEBALI, “CYST FORMATION FROM VIRULENT RH STRAIN OF TOXOPLASMA GONDII TACHYZOITE: IN VITRO CULTIVATION,” IRANIAN JOURNAL OF PARASITOLOGY, vol. 11, no. 1, pp. 81–85, 2016, [Online]. Available: https://sid.ir/paper/304067/en

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