Characterization of CpCaM, a protein potentially involved in the growth of Cryptosporidium parvum

Related Experiment Video

Updated: Sep 28, 2026

Studying Cryptosporidium Infection in 3D Tissue-derived Human Organoid Culture Systems by Microinjection
05:31

Studying Cryptosporidium Infection in 3D Tissue-derived Human Organoid Culture Systems by Microinjection

Published on: September 14, 2019

9.7K

Peng Lai1, Xin Yang1, Yun-Hui Li1

  • 1Key Laboratory of Ruminant Disease Prevention and Control (West), College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China.

Parasitology Research
|March 6, 2023
PubMed

Insights

Calmodulin (CaM) in Cryptosporidium parvum, an important parasite, was studied. This research found that CpCaM plays a role in parasite growth and may be crucial for Cryptosporidium infection.

Area of Science:

  • Parasitology
  • Molecular Biology
  • Biochemistry

Background:

  • Cryptosporidium parvum is a significant apicomplexan parasite responsible for severe diarrhea in humans and animals.
  • Calmodulin (CaM) is a vital calcium-binding protein involved in apicomplexan parasite development, but its specific role in C. parvum is not well understood.

Purpose of the Study:

  • To investigate the biological functions of Calmodulin (CaM) in Cryptosporidium parvum (CpCaM).
  • To explore the potential role of CpCaM in the growth and development of C. parvum.

Main Methods:

  • The cgd2_810 gene encoding CpCaM was expressed in Escherichia coli.
  • Transcriptional levels of the cgd2_810 gene were analyzed at different post-infection times.
  • CpCaM protein localization was determined in different parasite stages (oocysts, sporozoites, merozoites).
  • The effect of anti-CpCaM antibody on C. parvum sporozoite invasion was assessed.

Main Results:

  • The transcriptional level of the cgd2_810 gene peaked at 36 hours post-infection.
  • CpCaM protein was localized around the nucleus in oocysts, in the middle of sporozoites, and around the nucleus in merozoites.
  • An anti-CpCaM antibody significantly reduced the invasion of C. parvum sporozoites by 30.69%.

Conclusions:

  • CpCaM is potentially involved in the growth of Cryptosporidium parvum.
  • This study enhances the understanding of host-parasite interactions in Cryptosporidium infections.
  • CpCaM represents a potential target for therapeutic interventions against cryptosporidiosis.
Keywords:
CalmodulinCryptosporidium parvumDevelopmentExpression

More Related Videos

Generating Genetically Modified Plasmodium berghei Sporozoites10:16

Generating Genetically Modified Plasmodium berghei Sporozoites

Published on: May 5, 2023

1.4K
Author Spotlight: Identifying Compensatory Pathways in Malaria Parasites Containing Hypomorphic Allele of Essential Protein Kinases09:13

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

Published on: November 22, 2024

1.5K

Related Concept Videos

Diversity of Protists I01:15

Diversity of Protists I

Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...
Diversity of Protists II01:27

Diversity of Protists II

Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...