| Structural highlights
Disease
[FAK1_HUMAN] Note=Aberrant PTK2/FAK1 expression may play a role in cancer cell proliferation, migration and invasion, in tumor formation and metastasis. PTK2/FAK1 overexpression is seen in many types of cancer.[1] [2] [3] [4] [5] [6] [7] [8] [9]
Function
[FAK1_HUMAN] Non-receptor protein-tyrosine kinase that plays an essential role in regulating cell migration, adhesion, spreading, reorganization of the actin cytoskeleton, formation and disassembly of focal adhesions and cell protrusions, cell cycle progression, cell proliferation and apoptosis. Required for early embryonic development and placenta development. Required for embryonic angiogenesis, normal cardiomyocyte migration and proliferation, and normal heart development. Regulates axon growth and neuronal cell migration, axon branching and synapse formation; required for normal development of the nervous system. Plays a role in osteogenesis and differentiation of osteoblasts. Functions in integrin signal transduction, but also in signaling downstream of numerous growth factor receptors, G-protein coupled receptors (GPCR), EPHA2, netrin receptors and LDL receptors. Forms multisubunit signaling complexes with SRC and SRC family members upon activation; this leads to the phosphorylation of additional tyrosine residues, creating binding sites for scaffold proteins, effectors and substrates. Regulates numerous signaling pathways. Promotes activation of phosphatidylinositol 3-kinase and the AKT1 signaling cascade. Promotes activation of MAPK1/ERK2, MAPK3/ERK1 and the MAP kinase signaling cascade. Promotes localized and transient activation of guanine nucleotide exchange factors (GEFs) and GTPase-activating proteins (GAPs), and thereby modulates the activity of Rho family GTPases. Signaling via CAS family members mediates activation of RAC1. Recruits the ubiquitin ligase MDM2 to P53/TP53 in the nucleus, and thereby regulates P53/TP53 activity, P53/TP53 ubiquitination and proteasomal degradation. Phosphorylates SRC; this increases SRC kinase activity. Phosphorylates ACTN1, ARHGEF7, GRB7, RET and WASL. Promotes phosphorylation of PXN and STAT1; most likely PXN and STAT1 are phosphorylated by a SRC family kinase that is recruited to autophosphorylated PTK2/FAK1, rather than by PTK2/FAK1 itself. Promotes phosphorylation of BCAR1; GIT2 and SHC1; this requires both SRC and PTK2/FAK1. Promotes phosphorylation of BMX and PIK3R1. Isoform 6 (FRNK) does not contain a kinase domain and inhibits PTK2/FAK1 phosphorylation and signaling. Its enhanced expression can attenuate the nuclear accumulation of LPXN and limit its ability to enhance serum response factor (SRF)-dependent gene transcription.[10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31]
Publication Abstract from PubMed
Focal adhesion tyrosine kinase (PTK2) is often overexpressed in human hepatocellular carcinoma (HCC), and several reports have linked PTK2 depletion and/or pharmacological inhibition to reduced tumorigenicity. However, the clinical relevance of targeting PTK2 still remains to be proven. Here, we present two highly selective and functional PTK2 proteolysis-targeting chimeras utilizing von Hippel-Lindau and cereblon ligands to hijack E3 ligases for PTK2 degradation. BI-3663 (cereblon-based) degrades PTK2 with a median DC50 of 30 nM to >80% across a panel of 11 HCC cell lines. Despite effective PTK2 degradation, these compounds did not phenocopy the reported antiproliferative effects of PTK2 depletion in any of the cell lines tested. By disclosing these compounds, we hope to provide valuable tools for the study of PTK2 degradation across different biological systems.
Highly Selective PTK2 Proteolysis Targeting Chimeras to Probe Focal Adhesion Kinase Scaffolding Functions.,Popow J, Arnhof H, Bader G, Berger H, Ciulli A, Covini D, Dank C, Gmaschitz T, Greb P, Karolyi-Ozguer J, Koegl M, McConnell DB, Pearson M, Rieger M, Rinnenthal J, Roessler V, Schrenk A, Spina M, Steurer S, Trainor N, Traxler E, Wieshofer C, Zoephel A, Ettmayer P J Med Chem. 2019 Feb 22. doi: 10.1021/acs.jmedchem.8b01826. PMID:30739444[32]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Hecker TP, Grammer JR, Gillespie GY, Stewart J Jr, Gladson CL. Focal adhesion kinase enhances signaling through the Shc/extracellular signal-regulated kinase pathway in anaplastic astrocytoma tumor biopsy samples. Cancer Res. 2002 May 1;62(9):2699-707. PMID:11980671
- ↑ Halder J, Lin YG, Merritt WM, Spannuth WA, Nick AM, Honda T, Kamat AA, Han LY, Kim TJ, Lu C, Tari AM, Bornmann W, Fernandez A, Lopez-Berestein G, Sood AK. Therapeutic efficacy of a novel focal adhesion kinase inhibitor TAE226 in ovarian carcinoma. Cancer Res. 2007 Nov 15;67(22):10976-83. PMID:18006843 doi:10.1158/0008-5472.CAN-07-2667
- ↑ Slack-Davis JK, Martin KH, Tilghman RW, Iwanicki M, Ung EJ, Autry C, Luzzio MJ, Cooper B, Kath JC, Roberts WG, Parsons JT. Cellular characterization of a novel focal adhesion kinase inhibitor. J Biol Chem. 2007 May 18;282(20):14845-52. Epub 2007 Mar 28. PMID:17395594 doi:10.1074/jbc.M606695200
- ↑ Liu TJ, LaFortune T, Honda T, Ohmori O, Hatakeyama S, Meyer T, Jackson D, de Groot J, Yung WK. Inhibition of both focal adhesion kinase and insulin-like growth factor-I receptor kinase suppresses glioma proliferation in vitro and in vivo. Mol Cancer Ther. 2007 Apr;6(4):1357-67. PMID:17431114 doi:10.1158/1535-7163.MCT-06-0476
- ↑ Pylayeva Y, Gillen KM, Gerald W, Beggs HE, Reichardt LF, Giancotti FG. Ras- and PI3K-dependent breast tumorigenesis in mice and humans requires focal adhesion kinase signaling. J Clin Invest. 2009 Feb;119(2):252-66. doi: 10.1172/JCI37160. Epub 2009 Jan 19. PMID:19147981 doi:10.1172/JCI37160
- ↑ Sun H, Pisle S, Gardner ER, Figg WD. Bioluminescent imaging study: FAK inhibitor, PF-562,271, preclinical study in PC3M-luc-C6 local implant and metastasis xenograft models. Cancer Biol Ther. 2010 Jul 1;10(1):38-43. Epub 2010 Jul 9. PMID:20495381
- ↑ Mitra SK, Schlaepfer DD. Integrin-regulated FAK-Src signaling in normal and cancer cells. Curr Opin Cell Biol. 2006 Oct;18(5):516-23. Epub 2006 Aug 17. PMID:16919435 doi:10.1016/j.ceb.2006.08.011
- ↑ Lim ST, Mikolon D, Stupack DG, Schlaepfer DD. FERM control of FAK function: implications for cancer therapy. Cell Cycle. 2008 Aug;7(15):2306-14. Epub 2008 May 29. PMID:18677107
- ↑ Golubovskaya VM, Kweh FA, Cance WG. Focal adhesion kinase and cancer. Histol Histopathol. 2009 Apr;24(4):503-10. PMID:19224453
- ↑ Miao H, Burnett E, Kinch M, Simon E, Wang B. Activation of EphA2 kinase suppresses integrin function and causes focal-adhesion-kinase dephosphorylation. Nat Cell Biol. 2000 Feb;2(2):62-9. PMID:10655584 doi:10.1038/35000008
- ↑ Chen R, Kim O, Li M, Xiong X, Guan JL, Kung HJ, Chen H, Shimizu Y, Qiu Y. Regulation of the PH-domain-containing tyrosine kinase Etk by focal adhesion kinase through the FERM domain. Nat Cell Biol. 2001 May;3(5):439-44. PMID:11331870 doi:10.1038/35074500
- ↑ Hecker TP, Grammer JR, Gillespie GY, Stewart J Jr, Gladson CL. Focal adhesion kinase enhances signaling through the Shc/extracellular signal-regulated kinase pathway in anaplastic astrocytoma tumor biopsy samples. Cancer Res. 2002 May 1;62(9):2699-707. PMID:11980671
- ↑ Xia H, Nho RS, Kahm J, Kleidon J, Henke CA. Focal adhesion kinase is upstream of phosphatidylinositol 3-kinase/Akt in regulating fibroblast survival in response to contraction of type I collagen matrices via a beta 1 integrin viability signaling pathway. J Biol Chem. 2004 Jul 30;279(31):33024-34. Epub 2004 May 27. PMID:15166238 doi:10.1074/jbc.M313265200
- ↑ Continolo S, Baruzzi A, Majeed M, Caveggion E, Fumagalli L, Lowell CA, Berton G. The proto-oncogene Fgr regulates cell migration and this requires its plasma membrane localization. Exp Cell Res. 2005 Jan 15;302(2):253-69. PMID:15561106 doi:10.1016/j.yexcr.2004.09.005
- ↑ Ezratty EJ, Partridge MA, Gundersen GG. Microtubule-induced focal adhesion disassembly is mediated by dynamin and focal adhesion kinase. Nat Cell Biol. 2005 Jun;7(6):581-90. Epub 2005 May 15. PMID:15895076 doi:10.1038/ncb1262
- ↑ Halder J, Lin YG, Merritt WM, Spannuth WA, Nick AM, Honda T, Kamat AA, Han LY, Kim TJ, Lu C, Tari AM, Bornmann W, Fernandez A, Lopez-Berestein G, Sood AK. Therapeutic efficacy of a novel focal adhesion kinase inhibitor TAE226 in ovarian carcinoma. Cancer Res. 2007 Nov 15;67(22):10976-83. PMID:18006843 doi:10.1158/0008-5472.CAN-07-2667
- ↑ Slack-Davis JK, Martin KH, Tilghman RW, Iwanicki M, Ung EJ, Autry C, Luzzio MJ, Cooper B, Kath JC, Roberts WG, Parsons JT. Cellular characterization of a novel focal adhesion kinase inhibitor. J Biol Chem. 2007 May 18;282(20):14845-52. Epub 2007 Mar 28. PMID:17395594 doi:10.1074/jbc.M606695200
- ↑ Salasznyk RM, Klees RF, Boskey A, Plopper GE. Activation of FAK is necessary for the osteogenic differentiation of human mesenchymal stem cells on laminin-5. J Cell Biochem. 2007 Feb 1;100(2):499-514. PMID:16927379 doi:10.1002/jcb.21074
- ↑ Liu TJ, LaFortune T, Honda T, Ohmori O, Hatakeyama S, Meyer T, Jackson D, de Groot J, Yung WK. Inhibition of both focal adhesion kinase and insulin-like growth factor-I receptor kinase suppresses glioma proliferation in vitro and in vivo. Mol Cancer Ther. 2007 Apr;6(4):1357-67. PMID:17431114 doi:10.1158/1535-7163.MCT-06-0476
- ↑ Sundberg-Smith LJ, DiMichele LA, Sayers RL, Mack CP, Taylor JM. The LIM protein leupaxin is enriched in smooth muscle and functions as an serum response factor cofactor to induce smooth muscle cell gene transcription. Circ Res. 2008 Jun 20;102(12):1502-11. doi: 10.1161/CIRCRESAHA.107.170357. Epub, 2008 May 22. PMID:18497331 doi:10.1161/CIRCRESAHA.107.170357
- ↑ Semaan N, Alsaleh G, Gottenberg JE, Wachsmann D, Sibilia J. Etk/BMX, a Btk family tyrosine kinase, and Mal contribute to the cross-talk between MyD88 and FAK pathways. J Immunol. 2008 Mar 1;180(5):3485-91. PMID:18292575
- ↑ Singh MK, Dadke D, Nicolas E, Serebriiskii IG, Apostolou S, Canutescu A, Egleston BL, Golemis EA. A novel Cas family member, HEPL, regulates FAK and cell spreading. Mol Biol Cell. 2008 Apr;19(4):1627-36. Epub 2008 Feb 6. PMID:18256281 doi:E07-09-0953
- ↑ Lim ST, Chen XL, Lim Y, Hanson DA, Vo TT, Howerton K, Larocque N, Fisher SJ, Schlaepfer DD, Ilic D. Nuclear FAK promotes cell proliferation and survival through FERM-enhanced p53 degradation. Mol Cell. 2008 Jan 18;29(1):9-22. doi: 10.1016/j.molcel.2007.11.031. PMID:18206965 doi:10.1016/j.molcel.2007.11.031
- ↑ Sachdev S, Bu Y, Gelman IH. Paxillin-Y118 phosphorylation contributes to the control of Src-induced anchorage-independent growth by FAK and adhesion. BMC Cancer. 2009 Jan 12;9:12. doi: 10.1186/1471-2407-9-12. PMID:19138410 doi:10.1186/1471-2407-9-12
- ↑ Pylayeva Y, Gillen KM, Gerald W, Beggs HE, Reichardt LF, Giancotti FG. Ras- and PI3K-dependent breast tumorigenesis in mice and humans requires focal adhesion kinase signaling. J Clin Invest. 2009 Feb;119(2):252-66. doi: 10.1172/JCI37160. Epub 2009 Jan 19. PMID:19147981 doi:10.1172/JCI37160
- ↑ Sun H, Pisle S, Gardner ER, Figg WD. Bioluminescent imaging study: FAK inhibitor, PF-562,271, preclinical study in PC3M-luc-C6 local implant and metastasis xenograft models. Cancer Biol Ther. 2010 Jul 1;10(1):38-43. Epub 2010 Jul 9. PMID:20495381
- ↑ Cai GQ, Zheng A, Tang Q, White ES, Chou CF, Gladson CL, Olman MA, Ding Q. Downregulation of FAK-related non-kinase mediates the migratory phenotype of human fibrotic lung fibroblasts. Exp Cell Res. 2010 May 15;316(9):1600-9. doi: 10.1016/j.yexcr.2010.01.021. Epub, 2010 Jan 25. PMID:20109444 doi:10.1016/j.yexcr.2010.01.021
- ↑ Plaza-Menacho I, Morandi A, Mologni L, Boender P, Gambacorti-Passerini C, Magee AI, Hofstra RM, Knowles P, McDonald NQ, Isacke CM. Focal adhesion kinase (FAK) binds RET kinase via its FERM domain, priming a direct and reciprocal RET-FAK transactivation mechanism. J Biol Chem. 2011 May 13;286(19):17292-302. doi: 10.1074/jbc.M110.168500. Epub, 2011 Mar 22. PMID:21454698 doi:10.1074/jbc.M110.168500
- ↑ Mitra SK, Schlaepfer DD. Integrin-regulated FAK-Src signaling in normal and cancer cells. Curr Opin Cell Biol. 2006 Oct;18(5):516-23. Epub 2006 Aug 17. PMID:16919435 doi:10.1016/j.ceb.2006.08.011
- ↑ Lim ST, Mikolon D, Stupack DG, Schlaepfer DD. FERM control of FAK function: implications for cancer therapy. Cell Cycle. 2008 Aug;7(15):2306-14. Epub 2008 May 29. PMID:18677107
- ↑ Golubovskaya VM, Kweh FA, Cance WG. Focal adhesion kinase and cancer. Histol Histopathol. 2009 Apr;24(4):503-10. PMID:19224453
- ↑ Popow J, Arnhof H, Bader G, Berger H, Ciulli A, Covini D, Dank C, Gmaschitz T, Greb P, Karolyi-Ozguer J, Koegl M, McConnell DB, Pearson M, Rieger M, Rinnenthal J, Roessler V, Schrenk A, Spina M, Steurer S, Trainor N, Traxler E, Wieshofer C, Zoephel A, Ettmayer P. Highly Selective PTK2 Proteolysis Targeting Chimeras to Probe Focal Adhesion Kinase Scaffolding Functions. J Med Chem. 2019 Feb 22. doi: 10.1021/acs.jmedchem.8b01826. PMID:30739444 doi:http://dx.doi.org/10.1021/acs.jmedchem.8b01826
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