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Biolistic Transformation of a Fluorescent Tagged Gene into the Opportunistic Fungal Pathogen Cryptococcus neoformans
Published on: March 19, 2015
Network-assisted genetic dissection of pathogenicity and drug resistance in the opportunistic human pathogenic fungus
Hanhae Kim1, Kwang-Woo Jung2, Shinae Maeng2
1Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul. 120-749, Korea.
Abstract:
Cryptococcus neoformans is an opportunistic human pathogenic fungus that causes meningoencephalitis. Due to the increasing global risk of cryptococcosis and the emergence of drug-resistant strains, the development of predictive genetics platforms for the rapid identification of novel genes governing pathogenicity and drug resistance of C. neoformans is imperative. The analysis of functional genomics data and genome-scale mutant libraries may facilitate the genetic dissection of such complex phenotypes but with limited efficiency. Here, we present a genome-scale co-functional network for C. neoformans, CryptoNet, which covers ~81% of the coding genome and provides an efficient intermediary between functional genomics data and reverse-genetics resources for the genetic dissection of C. neoformans phenotypes. CryptoNet is the first genome-scale co-functional network for any fungal pathogen. CryptoNet effectively identified novel genes for pathogenicity and drug resistance using guilt-by-association and context-associated hub algorithms. CryptoNet is also the first genome-scale co-functional network for fungi in the basidiomycota phylum, as Saccharomyces cerevisiae belongs to the ascomycota phylum. CryptoNet may therefore provide insights into pathway evolution between two distinct phyla of the fungal kingdom. The CryptoNet web server (www.inetbio.org/cryptonet) is a public resource that provides an interactive environment of network-assisted predictive genetics for C. neoformans.
Insights
We developed CryptoNet, a novel genome-scale co-functional network for the fungal pathogen Cryptococcus neoformans. This tool aids in identifying genes linked to pathogenicity and drug resistance, crucial for combating cryptococcosis.
Area of Science:
- Mycology
- Computational Biology
- Genomics
Background:
- Cryptococcus neoformans is an opportunistic pathogen causing meningoencephalitis.
- Rising cryptococcosis risk and drug resistance necessitate new genetic identification tools.
- Existing methods for analyzing functional genomics data are often inefficient.
Purpose of the Study:
- To develop an efficient genome-scale co-functional network for Cryptococcus neoformans.
- To facilitate the identification of novel genes related to pathogenicity and drug resistance.
- To provide a resource for network-assisted predictive genetics in C. neoformans.
Main Methods:
- Construction of a genome-scale co-functional network (CryptoNet) covering ~81% of the C. neoformans coding genome.
- Application of guilt-by-association and context-associated hub algorithms.
- Development of a public web server for interactive network analysis.
Main Results:
- CryptoNet is the first genome-scale co-functional network for any fungal pathogen and for the Basidiomycota phylum.
- The network successfully identified novel genes associated with pathogenicity and drug resistance.
- CryptoNet provides insights into fungal pathway evolution.
Conclusions:
- CryptoNet offers an efficient platform for the genetic dissection of C. neoformans phenotypes.
- The tool is valuable for identifying virulence and drug resistance factors in fungal pathogens.
- CryptoNet serves as a public resource for advancing C. neoformans research and predictive genetics.
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