PMID- 19781942 OWN - NLM STAT- MEDLINE DCOM- 20100308 LR - 20231105 IS - 1879-0445 (Electronic) IS - 0960-9822 (Print) IS - 0960-9822 (Linking) VI - 19 IP - 19 DP - 2009 Oct 13 TI - The CIL-1 PI 5-phosphatase localizes TRP Polycystins to cilia and activates sperm in C. elegans. PG - 1599-607 LID - 10.1016/j.cub.2009.08.045 [doi] AB - BACKGROUND: C. elegans male sexual behaviors include chemotaxis and response to hermaphrodites, backing, turning, vulva location, spicule insertion, and sperm transfer, culminating in cross-fertilization of hermaphrodite oocytes with male sperm. The LOV-1 and PKD-2 transient receptor potential polycystin (TRPP) complex localizes to ciliated endings of C. elegans male-specific sensory neurons and mediates several aspects of male mating behavior. TRPP complex ciliary localization and sensory function are evolutionarily conserved. A genetic screen for C. elegans mutants with PKD-2 ciliary localization (Cil) defects led to the isolation of a mutation in the cil-1 gene. RESULTS: Here, we report that a phosphoinositide (PI) 5-phosphatase, CIL-1, regulates TRPP complex ciliary receptor localization and sperm activation. cil-1 does not regulate the localization of other ciliary proteins, including intraflagellar transport (IFT) components, sensory receptors, or other TRP channels in different cell types. Rather, cil-1 specifically controls TRPP complex trafficking in male-specific sensory neurons and does so in a cell-autonomous fashion. In these cells, cil-1 is required for normal PI(3)P distribution, indicating that a balance between PI(3,5)P2 and PI(3)P is important for TRPP localization. cil-1 mutants are infertile because of sperm activation and motility defects. In sperm, the CIL-1 5-phosphatase and a wortmannin-sensitive PI 3-kinase act antagonistically to regulate the conversion of sessile spermatids into motile spermatozoa, implicating PI(3,4,5)P3 signaling in nematode sperm activation. CONCLUSION: Our studies identify the CIL-1 5-phosphatase as a key regulator of PI metabolism in cell types that are important in several aspects of male reproductive biology. FAU - Bae, Young-Kyung AU - Bae YK AD - Department of Genetics, Rutgers University, the State University of New Jersey, Piscataway, NJ 08854, USA. FAU - Kim, Eunsoo AU - Kim E FAU - L'hernault, Steven W AU - L'hernault SW FAU - Barr, Maureen M AU - Barr MM LA - eng GR - DK074746/DK/NIDDK NIH HHS/United States GR - R01 GM082932-03/GM/NIGMS NIH HHS/United States GR - R01 DK059418-09/DK/NIDDK NIH HHS/United States GR - R01 DK074746-03/DK/NIDDK NIH HHS/United States GR - R01 DK059418-06A1/DK/NIDDK NIH HHS/United States GR - R01 DK074746-04/DK/NIDDK NIH HHS/United States GR - R01 DK059418-07/DK/NIDDK NIH HHS/United States GR - DK059418/DK/NIDDK NIH HHS/United States GR - R56 DK074746/DK/NIDDK NIH HHS/United States GR - R01 GM082932/GM/NIGMS NIH HHS/United States GR - R01 DK059418-08/DK/NIDDK NIH HHS/United States GR - R01 DK074746/DK/NIDDK NIH HHS/United States GR - R01 DK059418/DK/NIDDK NIH HHS/United States GR - R01 DK059418-10/DK/NIDDK NIH HHS/United States GR - GM082932/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20090924 PL - England TA - Curr Biol JT - Current biology : CB JID - 9107782 RN - 0 (Caenorhabditis elegans Proteins) RN - 0 (DNA Primers) RN - 0 (LOV-1 protein, C elegans) RN - 0 (PKD-2 protein, C elegans) RN - 0 (TRPP Cation Channels) RN - 0 (Transient Receptor Potential Channels) RN - EC 3.1.3.2 (Phosphoric Monoester Hydrolases) RN - EC 3.1.3.36 (phosphoinositide 5-phosphatase) SB - IM MH - Amino Acid Sequence MH - Animals MH - Base Sequence MH - Caenorhabditis elegans/*enzymology/genetics MH - Caenorhabditis elegans Proteins/*genetics/*metabolism MH - Cluster Analysis MH - DNA Primers/genetics MH - Immunohistochemistry MH - Male MH - Microscopy, Fluorescence MH - Models, Genetic MH - Molecular Sequence Data MH - Phosphoric Monoester Hydrolases/genetics/*metabolism MH - Phylogeny MH - Sequence Analysis, DNA MH - Sexual Behavior, Animal/*physiology MH - Spermatozoa/metabolism/*physiology MH - TRPP Cation Channels/*metabolism MH - Transient Receptor Potential Channels/*metabolism PMC - PMC2762383 MID - NIHMS143271 EDAT- 2009/09/29 06:00 MHDA- 2010/03/10 06:00 PMCR- 2010/10/13 CRDT- 2009/09/29 06:00 PHST- 2009/06/01 00:00 [received] PHST- 2009/08/14 00:00 [revised] PHST- 2009/08/17 00:00 [accepted] PHST- 2009/09/29 06:00 [entrez] PHST- 2009/09/29 06:00 [pubmed] PHST- 2010/03/10 06:00 [medline] PHST- 2010/10/13 00:00 [pmc-release] AID - S0960-9822(09)01621-2 [pii] AID - 10.1016/j.cub.2009.08.045 [doi] PST - ppublish SO - Curr Biol. 2009 Oct 13;19(19):1599-607. doi: 10.1016/j.cub.2009.08.045. Epub 2009 Sep 24.