KLK9 belongs to the kallikrein subgroup of serine proteases, which have diverse physiologic functions in many tissues.[2][3][4] KLK9 is primarily expressed in thymus, testis, spinal cord, cerebellum, trachea, mammary gland, prostate, brain, salivary gland, ovary, and skin.[1]
Clinical significance
KLK9 is under steroid hormone regulation in ovarian and breast cancer cell lines and is a potential prognostic marker for early-stage ovarian[5] and breast cancer patients.[6]
Its excretion in urine has been associated with cardiac hypertrophy and aorta wall thickness, as well as some renal alterations.[7]
References
↑ 1.01.1Yousef GM, Diamandis EP (April 2000). "The expanded human kallikrein gene family: locus characterization and molecular cloning of a new member, KLK-L3 (KLK9)". Genomics. 65 (2): 184–94. doi:10.1006/geno.2000.6159. PMID10783266.
↑Lundwall A, Band V, Blaber M, Clements JA, Courty Y, Diamandis EP, Fritz H, Lilja H, Malm J, Maltais LJ, Olsson AY, Petraki C, Scorilas A, Sotiropoulou G, Stenman UH, Stephan C, Talieri M, Yousef GM (June 2006). "A comprehensive nomenclature for serine proteases with homology to tissue kallikreins". Biological Chemistry. 387 (6): 637–41. doi:10.1515/BC.2006.082. PMID16800724.
↑Diamandis EP, Deperthes D, Lundwall Å (June 2006). "Proceedings of the 1st International Symposium on Kallikreins, Lausanne, Switzerland, September 1-3 , 2005". Biological Chemistry. 387 (6): 635–824. doi:10.1515/BC.2006.081. PMID16800723.
↑Yousef GM, Scorilas A, Nakamura T, Ellatif MA, Ponzone R, Biglia N, Maggiorotto F, Roagna R, Sismondi P, Diamandis EP (March 2003). "The prognostic value of the human kallikrein gene 9 (KLK9) in breast cancer". Breast Cancer Research and Treatment. 78 (2): 149–58. doi:10.1023/A:1022931403825. PMID12725415.
Yousef GM, Kyriakopoulou LG, Scorilas A, Fracchioli S, Ghiringhello B, Zarghooni M, Chang A, Diamandis M, Giardina G, Hartwick WJ, Richiardi G, Massobrio M, Diamandis EP, Katsaros D (November 2001). "Quantitative expression of the human kallikrein gene 9 (KLK9) in ovarian cancer: a new independent and favorable prognostic marker". Cancer Research. 61 (21): 7811–8. PMID11691797.
Yousef GM, Luo LY, Diamandis EP (1999). "Identification of novel human kallikrein-like genes on chromosome 19q13.3-q13.4". Anticancer Research. 19 (4B): 2843–52. PMID10652563.
Gan L, Lee I, Smith R, Argonza-Barrett R, Lei H, McCuaig J, Moss P, Paeper B, Wang K (October 2000). "Sequencing and expression analysis of the serine protease gene cluster located in chromosome 19q13 region". Gene. 257 (1): 119–30. doi:10.1016/S0378-1119(00)00382-6. PMID11054574.
External links
The MEROPS online database for peptidases and their inhibitors: S01.307