Video Experimental Relacionado

Updated: Apr 11, 2026

Methods to Investigate the Regulatory Role of Small RNAs and Ribosomal Occupancy of Plasmodium falciparum

Methods to Investigate the Regulatory Role of Small RNAs and Ribosomal Occupancy of Plasmodium falciparum

Published on: December 4, 2015

Anti-PfGARP activa la muerte celular programada de los parásitos y reduce la malaria severa

Dipak K Raj^1,2, Alok Das Mohapatra^1,2, Anup Jnawali^1,2

¹Center for International Health Research, Rhode Island Hospital, Brown University Medical School, Providence, RI, USA.

|May 20, 2020

Resumen

Un nuevo candidato a la vacuna contra la malaria, la proteína rica en ácido glutámico de Plasmodium falciparum (PfGARP), es prometedor. Los anticuerpos dirigidos a PfGARP protegen contra la malaria severa y reducen la densidad de parásitos, ofreciendo una nueva vía para el control de la malaria.

Área de la Ciencia:

Inmunología
Parasitología
Vacunas y vacunas

Sus antecedentes:

La malaria Plasmodium falciparum es una de las principales causas de mortalidad infantil, sin una vacuna completamente efectiva disponible.
La identificación de nuevos antígenos parasitarios reconocidos por individuos inmunes es crucial para el desarrollo de vacunas.

Objetivo del estudio:

Identificar los antígenos de Plasmodium falciparum reconocidos por los anticuerpos en niños resistentes a la malaria.
Evaluar el potencial de PfGARP como candidato a vacuna contra la malaria.

Principales métodos:

Cribado diferencial del proteoma del parásito Plasmodium falciparum.
Análisis de anticuerpos en el plasma de niños resistentes y susceptibles a la malaria.
Pruebas de eliminación in vitro de los eritrocitos infectados.
Vacunación de primates no humanos y estudios de desafío.
Estudios longitudinales de cohorte en poblaciones de Tanzania y Kenia.

Principales resultados:

La proteína rica en ácido glutámico de Plasmodium falciparum (PfGARP) fue identificada como un objetivo de anticuerpos en niños resistentes a la malaria.
Los anticuerpos contra PfGARP inducen la muerte celular programada en los eritrocitos infectados por trofozoítos.
La vacunación con PfGARP proporcionó una protección parcial en primates no humanos.
Los individuos que carecían de anticuerpos anti-PfGARP tenían un mayor riesgo de malaria severa y una mayor densidad de parásitos.

Conclusiones:

PfGARP es un antígeno candidato prometedor para la vacuna contra la malaria por Plasmodium falciparum.
Los anticuerpos contra PfGARP confieren protección al destruir los eritrocitos infectados.
Las vacunas basadas en PfGARP podrían sinergizar con otras estrategias de control de la malaria.

Más Videos Relacionados

CRISPR/Cas9 Gene Editing to Make Conditional Mutants of Human Malaria Parasite P. falciparum

CRISPR/Cas9 Gene Editing to Make Conditional Mutants of Human Malaria Parasite P. falciparum

Published on: September 18, 2018

Author Spotlight: Identifying Compensatory Pathways in Malaria Parasites Containing Hypomorphic Allele of Essential Protein Kinases

Author Spotlight: Identifying Compensatory Pathways in Malaria Parasites Containing Hypomorphic Allele of Essential Protein Kinases

Published on: November 22, 2024

Videos de Conceptos Relacionados

Overview of Cell Death

Overview of Cell Death

Cell death is an essential process where the body gets rid of old or damaged cells. Cell proliferation and death need to be balanced, as an imbalance between the two may lead to cancer or autoimmune diseases.
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the...

Autophagic Cell Death

Autophagic Cell Death

Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...

Necrosis

Necrosis

Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”.
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become...

Anthelminthic Agents

Anthelminthic Agents

Anthelmintic drugs differ significantly from antiparasitic therapies targeting protozoa, primarily due to differences in parasite biology. Whereas most protozoal treatments act on proliferating cells, anthelmintics are typically directed against mature, nonproliferative helminths. The therapeutic approach considers the helminth's reliance on neuromuscular coordination, glucose metabolism, and microtubular integrity for survival, reproduction, and localization within the host. Most anthelmintics...