RT Journal Article SR Electronic T1 Controlling morpholino experiments: don't stop making antisense JF Development JO Development FD The Company of Biologists Limited SP 1735 OP 1743 DO 10.1242/dev.001115 VO 135 IS 10 A1 Eisen, Judith S. A1 Smith, James C. YR 2008 UL http://dev.biologists.org/content/135/10/1735.abstract AB One of the most significant problems facing developmental biologists who do not work on an organism with well-developed genetics - and even for some who do - is how to inhibit the action of a gene of interest during development so as to learn about its normal biological function. A widely adopted approach is to use antisense technologies, and especially morpholino antisense oligonucleotides. In this article, we review the use of such reagents and present examples of how they have provided insights into developmental mechanisms. We also discuss how the use of morpholinos can lead to misleading results, including off-target effects, and we suggest controls that will allow researchers to interpret morpholino experiments correctly.