Platelet mRNA:  the meaning behind the message.
OBJECTIVE
It is now well appreciated that megakaryocytes invest platelets with a diverse repertoire of messenger RNAs (mRNAs), which are competent for translation. Herein we describe what is currently known regarding the expression, function, and clinical significance of mRNAs in platelets.


RESULTS
Although mRNA was detected in platelets nearly 30 years ago, we are only beginning to understand the roles of mRNA in platelet biology and human disease. Recent studies have shown that megakaryocytes specifically sort, rather than randomly transfer, mRNA to platelets during thrombopoiesis. As a result, platelets are released into the circulation with thousands of mRNAs. The emergence of next-generation RNA sequencing has demonstrated that platelet mRNAs possess classic structural features, which include untranslated regions and open reading frames. There is also growing evidence that platelet mRNA expression patterns are altered in human disease.


CONCLUSIONS
Intense investigation of platelet mRNA has shed considerable light on predicted functions of platelets and identified previously unrecognized attributes of platelets. Lessons learned from platelet mRNA is presented in this review.
Molecular Medicine Program, University of Utah, Salt Lake City, USA.
Jesse W
JW
Rowley
Hansjörg
H
Schwertz
Andrew S
AS
Weyrich
D001792:Blood Platelets / Q000378:metabolism / Q000502:physiology*; D006801:Humans; D012333:RNA, Messenger / Q000378:metabolism / Q000502:physiology*; D034061:Thrombopoiesis / Q000502:physiology
D012333:RNA, Messenger