Protein Information

Name cytochrome P450 side chain cleavage enzyme
Synonyms CYP11A; CYP11A1; CYPXIA 1; CYPXIA1; Cholesterol 20 22 desmolase; Cholesterol desmolase; Cholesterol monooxygenase (side chain cleaving); Cholesterol side chain cleavage enzyme…

Compound Information

Name fenvalerate
CAS cyano(3-phenoxyphenyl)methyl 4-chloro-α-(1-methylethyl)benzeneacetate

Reference List

PubMed Abstract RScore(About this table)
15907653 Chen J, Chen H, Liu R, He J, Song L, Bian Q, Xu L, Zhou J, Xiao H, Dai G, Chang HC, Wang X: Effects of fenvalerate on progesterone production in cultured rat granulosa cells. Reprod Toxicol. 2005 Jul-Aug;20(2):195-202.

Fenvalerate reduced mRNA and protein expression of P450scc.
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18053657 Qu JH, Hong X, Chen JF, Wang YB, Sun H, Xu XL, Song L, Wang SL, Wang XR: Fenvalerate inhibits progesterone production through cAMP-dependent signal pathway. Toxicol Lett. 2008 Jan 4;176(1):31-9. Epub 2007 Sep 21.

In addition, fenvalerate decreased steroidogenic acute regulatory protein (StAR) mRNA and protein levels, and also profoundly inhibited the activity of P450 side chain cleavage enzyme (P450scc) which was consistent with the decreased expression of P450scc mRNA and protein in MLTC-1 cells.
162(2,2,2,2) Details
19683566 Zhang H, Wang H, Ji YL, Ning H, Yu T, Zhang C, Zhang Y, Zhao XF, Wang Q, Liu P, Meng XH, Xu DX: Lactational fenvalerate exposure permanently impairs testicular development and spermatogenesis in mice. Toxicol Lett. 2009 Dec 1;191(1):47-56. Epub 2009 Aug 14.

Additional experiment showed that lactational fenvalerate exposure markedly reduced mRNA and protein levels of testicular P450scc, a testosterone (T) synthesis enzyme.
88(1,1,2,3) Details
19892000 Fei J, Qu JH, Ding XL, Xue K, Lu CC, Chen JF, Song L, Xia YK, Wang SL, Wang XR: Fenvalerate inhibits the growth of primary cultured rat preantral ovarian follicles. Toxicology. 2010 Jan 12;267(1-3):1-6. Epub 2009 Nov 3.

These results suggested that fenvalerate restrained the follicular growth, and inhibited steroidogenesis by reducing StAR and P450scc gene expression, which might further contribute to the fenvalerate-induced reproductive dysfunction.
83(1,1,1,3) Details
20063364 Zhang H, Wang H, Wang Q, Zhao XF, Liu P, Ji YL, Ning H, Yu T, Zhang C, Zhang Y, Meng XH, Xu DX: Pubertal and early adult exposure to fenvalerate disrupts steroidogenesis and spermatogenesis in mice at adulthood. J Appl Toxicol. 2010 Jan 8.

Although pubertal and early adult exposure to fenvalerate had little effect on the number of Leydig cells in testes, mRNA and protein levels of testicular T biosynthetic enzymes including P450 (17alpha) and P450scc were significantly downregulated in fenvalerate-treated mice.
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16001830 Chen JF, Chen HY, Liu R, He J, Song L, Bian Q, Xu LC, Zhou JW, Xiao H, Dai GD, Wang XR: Effects of fenvalerate on steroidogenesis in cultured rat granulosa cells. Biomed Environ Sci. 2005 Apr;18(2):108-16.

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