The ins and outs of host-microsporidia interactions during invasion, proliferation and exit

Area of Science:

• Mycology
• Parasitology
• Cell Biology

Background:

• Microsporidia are fungal-related obligate intracellular parasites.
• They cause infections in humans and animals, with poorly understood infection mechanisms.
• Abundant in nature, their molecular strategies for host cell interaction remain largely enigmatic.

Purpose of the Study:

• To review recent findings on microsporidia infection mechanisms.
• To elucidate how microsporidia invade, proliferate, and exit host cells.
• To provide a comprehensive understanding of microsporidia-host interactions.

Main Methods:

• Review of existing literature on microsporidia infection.
• Analysis of molecular mechanisms involved in host cell invasion.
• Examination of host-parasite interactions during proliferation and egress.

Main Results:

• Microsporidia use spore wall and polar tube proteins for host cell adhesion and invasion.
• They possess numerous transporters to acquire host nutrients for proliferation.
• Secreted proteins modulate host metabolism and defense, while non-lytic exit depends on host actin and endocytic proteins.

Conclusions:

• Recent work illuminates microsporidia's molecular strategies for host cell invasion, proliferation, and exit.
• Understanding these mechanisms is crucial for combating microsporidian infections.
• This review offers a fuller picture of how these parasites infect hosts.