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Principal Investigator: Yufei Huang
Organization: UNIVERSITY OF PITTSBURGH AT PITTSBURGH
Fiscal Year: 2024
Award: $547,795
Funding agency: National Cancer Institute
Project Summary
N6-methyl-adenosine (m6A) is the most abundant mRNA methylation in mammalian cells. Emerging evidence
has linked m6A with cancer phenotypes in many cancers, spurring a surge of research in studying m6A and
cancer biology. However, dysregulation of m6A effector writers, erasers, and readers and reprogramming of
m6A sites are poorly characterized. How different modes of m6A-regulation of gene expression mediate the
downstream cancer pathways and phenotypes is mostly missing. We have developed several widely used
informatics tools for m6A peak detection, differential m6A analysis, and functional predictions for m6A targets
from MeRIP-seq m6A profiling data. Using these tools, we worked together with cancer biology collaborators to
reveal reprogramed viral and host m6A epitranscriptome in cells infected by the oncogenic virus KSHV and
discovered a cross-talk between m6A writers, erasers, and readers to regulate cancer growth and progression.
However, the fast-moving m6A and cancer research poses many unmet informatics challenges. Among them,
the ability to accurately identify single-base m6A sites and predict key m6A regulatory mechanisms from
profiling data is seriously lacking. Also, a comprehensive database that catalogs and enables queries of where,
what, and how of m6A methylation and function in normal and cancer conditions is highly desirable. To address
challenges, we propose to develop m6A-Suite, an informatics toolbox, pipeline, and resources to facilitate the
mechanistic study of m6A in cancer. A key obstacle to developing tools in m6A-Suite is a lack of large, high-
quality training datasets. Toward this end, we have collected 1,113 human and 680 mouse MeRIP-seq
samples from cancer cell lines, tumors, and normal tissues and identified >4M m6A peaks. In parallel, we have
also collected 194,060 single-base m6A sites in 9 cell lines and 3 tissues. We propose to leverage this data to
construct the highly desirable training datasets. Using these datasets, we will develop efficient and accurate
tools for single-base m6A detection and quantification from MeRIP-seq and nanopore data (Aim 1), enable the
prediction of m6A-mediated RNA decay and splicing (Aim 2), and establish the comprehensive, queriable m6A-
KB knowledgbase to catalog these predictions in an extensive collection of public MeRIP-seq and nanopore
data in cancer and normal cells, and tissues in diverse conditions(Aim 3). We will systematically test and
evaluate these tools within this project and through many established and emerging collaborations inside and
outside the ITCR consortium. We will make the tools and data freely available to the research community and
constantly seek feedback from the collaborators and users for improvement. Given the emerging nature of
m6A and cancer research, the addition of these tools to the ITCR program will positively impact this important,
fast-growing, new area of cancer research.
Terms: <Acceleration><Address><Algorithms><Alternate Splicing><Alternative RNA Splicing><Alternative Splicing><Area><Body Tissues><Cancer Biology><Cancer cell line><Cancers><Catalogs><Cell Body><Cell Communication and Signaling><Cell Line><Cell Signaling><CellLine><Cells><Collaborations><Collection><Communities><Consumption><Data><Data Bases><Data Set><Databases><Detection><Drug Targeting><Ensure><Feedback><Gene Action Regulation><Gene Expression><Gene Expression Regulation><Gene Regulation><Gene Regulation Process><Generalized Growth><Growth><HHV-8><HHV8><Human><Human Herpesvirus 8><In Vitro><Informatics><Intermediary Metabolism><Intracellular Communication and Signaling><KSHV><Kaposi Sarcoma-Associated Herpes Virus><Kaposi Sarcoma-Associated Herpesvirus><Kaposi sarcoma associated virus><Kaposi sarcoma herpes virus><Kaposi's sarcoma (KS)-associated herpesvirus><Knowledge><Link><Malignant Cell><Malignant Neoplasms><Malignant Tumor><Mammalian Cell><Maps><Mediating><Messenger RNA><Metabolic Processes><Metabolism><Methylation><Mice><Mice Mammals><Modality><Modeling><Modern Man><Modification><Murine><Mus><Nature><Non-Polyadenylated RNA><Normal Cell><Normal Tissue><Normal tissue morphology><Oncogenic Viruses><Oncologist><Organism-Level Process><Organismal Process><Pathway interactions><Pattern><Performance><Phenotype><Physiologic Processes><Physiological Processes><Play><Proteins><RNA><RNA Decay><RNA Gene Products><RNA Splicing><Reader><Research><Research Resources><Resolution><Resources><Ribonucleic Acid><Role><Sampling><Shapes><Signal Transduction><Signal Transduction Systems><Signaling><Site><Splicing><Strains Cell Lines><Testing><Therapeutic><Tissue Growth><Tissues><Training><Tumor Tissue><Tumor Viruses><Viral><Virus-HHV8><Work><algorithm training><anti-cancer research><base><bases><biological signal transduction><biomarker identification><cancer cell><cancer research><catalog><cultured cell line><data base><data to train><dataset to train><design><designing><differential expression><differentially expressed><epitranscriptome><identification of biomarkers><identification of new biomarkers><improved><in vivo><informatics tool><insight><kaposi's sarcoma herpesvirus><kaposi's sarcoma-associated human herpesvirus><knowledgebase><mRNA><mRNA Decay><mRNA Stability><malignancy><marker identification><multi-modality><multimodality><nano pore><nanopore><neoplasm/cancer><oncogenic tumor virus><ontogeny><open data><open science><open source><open-source data><pathway><predictive tools><programs><resolutions><self supervised><self supervised learning><self supervision><sequence learning><social role><therapeutic biomarker><therapeutic marker><tool><training data><transcriptional differences><usability>