Biomphalaria glabrata immunity: Post-genome advances.

Area of Science:

• * Molluscan immunology and parasite-host interactions.
• * Genomics, transcriptomics, proteomics, and epigenetics of invertebrates.

Background:

• * Biomphalaria glabrata is a key intermediate host for Schistosoma mansoni, the parasite causing schistosomiasis.
• * Current schistosomiasis control strategies are insufficient to curb disease transmission.
• * The recent sequencing of the B. glabrata genome offers new avenues for research into snail biology and immunity.

Purpose of the Study:

• * To review recent post-genome studies on Biomphalaria glabrata immunity.
• * To highlight advancements in understanding snail-parasite interactions and host resistance mechanisms.
• * To synthesize findings on molluscan immune system complexity.

Main Methods:

• * Analysis of post-genome studies including gene linkage maps and cell line genome analysis.
• * Application of transcriptomic and proteomic approaches to study snail-parasite interactions.
• * Biochemical investigations into snail pheromones, neuropeptides, and cell signaling pathways.

Main Results:

• * Novel insights into snail-parasite strain compatibility and host resistance.
• * Demonstration that host resistance depends on genetic expression and molecular complex formation.
• * Reinforcement of the roles of cellular immunity and humoral factors, particularly in secondary infections.

Conclusions:

• * Recent studies significantly enhance the understanding of the diversity and complexity of molluscan immune systems.
• * Findings support the intricate interplay between snail genetics, molecular mechanisms, and parasite resistance.
• * The B. glabrata genome sequence is a valuable resource for future schistosomiasis research and control efforts.