Aging-associated lncRNAs carry evolutionary constraints and participate in NF?B signaling [ChIRP]

Aging changes global transcriptome including protein-coding and noncoding RNAs. Whether aging dependent lncRNAs undergo conserved regulation and function still remain unknown. We report aging dependent lncRNAs carry signature of evolutionary constraint and significantly enriched for targets of transcription factors and RNA binding proteins. Aging dependent lncRNAs is conservatively under NF?B pathway regulation. CRISPR screening for NF?B pathway found that aging dependent lncRNAs also extensively regulate NF?B pathway. The human NFKBMARL-1 is an evolutionary conserved lncRNA that can be traced to 29Mya before human. NFKBMARL-1 is induced during aging, inflammation and senescence through NF?B pathway. Reciprocally, NFKBMARL-1 directly regulates NFKBIZ in cis within same topological associated domain (TAD). NFKBMARL-1 binds to enhancer of NFKBIZ and recruits RELA to the NFKBIZ promoters and participates phase separation. These findings reveal that aging dependent lncRNAs are previously under-appreciated contributors to the evolutionary conservation and regulation of NF?B pathway. Overall design: The ChIRP-seq of NFKBMARL-1 in IMR90