What is T helper cell?
'''T helper cells''' are a kind of [[lymphocyte]] blood cell, produced in the [[thymus]]. They do not kill or eat [[bacteria]]. What they do is to help other immune cells target onto infecting bacteria. They activate [[Cytotoxic T cell|T-killer cells]] (cytotoxic T cells) and [[B cell]]s to kill infecting bacteria or cells that are infected by [[viruses]]. [[Single nucleotide polymorphism|Genetic variants]] in T helper genes are associated with [[Autoimmune disease|autoimmune diseases]].<ref>{{Cite journal|last=Burren|first=Oliver S.|last2=Rubio García|first2=Arcadio|last3=Javierre|first3=Biola-Maria|last4=Rainbow|first4=Daniel B.|last5=Cairns|first5=Jonathan|last6=Cooper|first6=Nicholas J.|last7=Lambourne|first7=John J.|last8=Schofield|first8=Ellen|last9=Castro Dopico|first9=Xaquin|last10=Ferreira|first10=Ricardo C.|last11=Coulson|first11=Richard|date=2017-09-04|title=Chromosome contacts in activated T cells identify autoimmune disease candidate genes|url=https://doi.org/10.1186/s13059-017-1285-0|journal=Genome Biology|volume=18|issue=1|pages=165|doi=10.1186/s13059-017-1285-0|issn=1474-760X|pmc=PMC5584004|pmid=28870212}}</ref> T helpers get attacked by the [[HIV]] virus. ==References== {{reflist}} {{biology-stub}} [[Category:blood cells]]