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Updated: Aug 30, 2025

Studying Cell Cycle-regulated Gene Expression by Two Complementary Cell Synchronization Protocols

Studying Cell Cycle-regulated Gene Expression by Two Complementary Cell Synchronization Protocols

Published on: June 6, 2017

Synchronization of Leishmania amazonensis Cell Cycle Using Hydroxyurea.

Beatriz C D de Oliveira¹, Luiz H C Assis¹, Mark E Shiburah¹

¹Telomeres Laboratory, Department of Chemical and Biological Sciences, Biosciences Institute, São Paulo State University (UNESP), Botucatu, SP, Brazil.

Methods in Molecular Biology (Clifton, N.J.)

|August 31, 2022

Summary

This summary is machine-generated.

This study presents a hydroxyurea method to synchronize Leishmania amazonensis parasites, crucial for studying cell cycle events and developing new therapies against this widespread protozoan parasite.

Keywords:

Cell cycle synchronization DNA content profile Hydroxyurea Leishmania amazonensis

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Published on: December 30, 2012

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A Parasite Rescue and Transformation Assay for Antileishmanial Screening Against Intracellular Leishmania donovani Amastigotes in THP1 Human Acute Monocytic Leukemia Cell Line

Published on: December 30, 2012

Area of Science:

Parasitology
Cell Biology
Molecular Biology

Background:

Leishmania spp. are protozoan parasites affecting millions globally.
Understanding parasite cell cycle control is key for developing targeted therapies.
Existing cell cycle analysis methods often require large cell numbers, necessitating synchronization.

Purpose of the Study:

To describe a reliable method for synchronizing procyclic promastigote forms of Leishmania amazonensis.
To enable detailed analysis of cell cycle-dependent events in Leishmania.
To provide a foundation for developing novel therapeutic strategies against Leishmania infections.

Main Methods:

Synchronization of Leishmania amazonensis procyclic promastigotes using hydroxyurea (HU).
Analysis of DNA content profiles to assess cell cycle progression.
Application of the method to other trypanosomatids like Trypanosoma cruzi and Trypanosoma brucei.

Main Results:

Hydroxyurea effectively synchronizes Leishmania amazonensis, arresting over 80% of cells at the G1/S phase transition.
The DNA content profile analysis confirmed successful cell cycle arrest.
The described method is adaptable for use with other related trypanosomatid species.

Conclusions:

Hydroxyurea-induced synchronization is an effective strategy for Leishmania amazonensis cell cycle studies.
This method facilitates research into cell cycle-dependent drug targets in Leishmania.
The approach is broadly applicable to other kinetoplastid parasites, aiding in broader antiparasitic drug discovery.