# Trans-Network Projects (TNPs)

Trans-Network Projects are multi-center projects created to facilitate collaborative research. Examples include cross-testing experimental and analytical protocols, exchange of personnel to disseminate SOPs or pursuit of additional HTAN critical methods or technologies.

Descriptions of the HTAN Phase 1 TNPs are provided below.

HTAN Phase 2 TNPs are in the process of being developed. Descriptions of Phase 2 HTAN TNPs will be provided once the TNPs are finalized and active.

# HTAN Phase 1 Trans-Network Projects

Code	Name	Description
HTA13	TNP SARDANA	The Shared Repositories, Data, Analysis and Access TNP focuses on optimizing the repeatability, interpretability and accessibility of HTAN characterization methods and the data they generate.
HTA14	TNP TMA	The Tissue MicroArray TNP extends the TNP SARDANA characterization and analytics methodologies for evaluation and validation to a large array of breast tumor TMA samples that provide a broad spectrum of disease states and subtypes.
HTA15	TNP SRRS	The Standardized Repository of Reference Specimens TNP's mission is to assemble an extensive catalogue of cases from premalignant lesions, pre- and post-treatment tumor tissue and metastatic tumor tissue for protocol optimization and validation.
HTA16	TNP CASI	The goal of the Cell Annotations and Signatures Initiative TNP is to provide robust and accurate tools for cell type annotation from single-cell data.