. Effect of fluoxetine on the inhibition of adenylate cyclase activity in foskolin-stimulated MLTC-1 leydig cells

Nguyen Thi Mong Diep, Nguyen Thi Bich Hang, Nguyen Le Cong Minh, Tran Thanh Son, Nguyen Thuy Duong
Author affiliations

Authors

  • Nguyen Thi Mong Diep Đại học Quy Nhơn
  • Nguyen Thi Bich Hang
  • Nguyen Le Cong Minh
  • Tran Thanh Son
  • Nguyen Thuy Duong

DOI:

https://doi.org/10.15625/1811-4989/17/4/14743

Keywords:

Fluoxetine, AMPK, cyclic adenosine monophosphate, Forskolin, MLTC-1 cells.

Abstract

Fluoxetine (FLX), a widely used antidepressant primarily acting as a selective serotonin reuptake inhibitor, has been shown to exhibit other mechanisms of action in various cell types. Cyclic adenosine monophosphate (cAMP) is a second messenger used for intracellular signal induction. Cyclic AMP is a nucleotide synthesized within the cell from adenosine triphosphate by the adenylyl cyclase enzyme, and is inactivated enzymatically to 5′AMP by hydroxylation with a group of enzymes called phosphodiesterase. The aim of this study was to determine the effects of FLX on MLTC-1 Leydig cells on intracellular cyclic AMP response to forskolin (FSK). MLTC-1 cells were incubated at 37°C in media supplemented with or without different doses of FLX (0, 0.156, 0.3125, 0.625, 1.25, 2.5, 5 and 10 µM). We then looked for how the concentration of FLX for a short-time (2 hours) and a long-time (24 hours) affects the concentration of intracellular cyclic AMP response to FSK and ATP levels on MLTC-1 cells. Our results show that FLX decreased the intracellular cAMP response to FSK depending on FLX concentration. FLX decreased significantly cAMP levels only at 10 µM after 2 hours of incubation but after 24 hours of incubation FLX caused an effect on cAMP levels at 5 µM and at 10 µM. Moreover, as expected, FLX also caused a decline of steroidogenesis, which is under the control of cAMP and ATP levels in the cells. Taken together, these findings demonstrate that the inhibition of cAMP synthesis by FLX is dose-dependent, and that FLX also inhibited hormone-induced steroidogenesis in MLTC-1 cells.

Downloads

Download data is not yet available.

References

Bos JL (2006) Epac proteins: multi-purpose cAMP targets. Trends Biochem Sci 31: 680-686.

Brambilla P, Cipriani A, Hotopf M, Barbui C (2005) Side-effect profile of fluoxetine in comparison with other SSRIs, tricyclic and newer antidepressants: a meta-analysis of clinical trial data. Pharmacopsychiatry 38: 69-77.

Charles E, Hammadi M, Kischel P, Delcroix V, Demaurex N, Castelbou C, Vacher AM, Devin A, Ducret T, Nunes P, Vacher P (2017) The antidepressant fluoxetine induces necrosis by energy depletion and mitochondrial calcium overload. Oncotarget 8: 3181-3196.

Curti C, Mingatto FE, Polizello AC, Galastri LO, Uyemura SA, Santos AC (1999) Fluoxetine interacts with the lipid bilayer of the inner membrane in isolated rat brain mitochondria, inhibiting electron transport and F1F0-ATPase activity. Mol Cell Biochem 199: 103-109.

de Rooij J, Zwartkruis FJ, Verheijen MH, Cool RH, Nijman SM, Wittinghofer A, Bos JL (1998) Epac is a Rap1 guanine-nucleotide-exchange factor directly activated by cyclic AMP. Nature 396: 474-477.

Deak F, Lasztoczi B, Pacher P, Petheo GL, Valeria K, Spat A (2000) Inhibition of voltage-gated calcium channels by fluoxetine in rat hippocampal pyramidal cells. Neuropharmacology 39: 1029-1036.

Dufau ML, Baukal AJ, Catt KJ (1980) Hormone-induced guanyl nucleotide binding and activation of adenylate cyclase in the Leydig cell. Proc Natl Acad Sci USA 77: 5837-5841.

Emslie GJ, Kennard BD, Mayes TL, Nakonezny PA, Zhu L, Tao R, Hughes C, Croarkin P (2012) Insomnia moderates outcome of serotonin-selective reuptake inhibitor treatment in depressed youth. J Child Adolesc Psychopharmacol 22: 21-8.

Gincel D, Zaid H, Shoshan-Barmatz V (2001) Calcium binding and translocation by the voltage-dependent anion channel: a possible regulatory mechanism in mitochondrial function. Biochem J 358: 147-155.

Guze BH, Gitlin M (1994) New antidepressants and the treatment of depression. J Fam Pract 38: 49-57.

Hodge T, Colombini M (1997) Regulation of metabolite flux through voltage-gating of VDAC channels. J Membr Biol 157: 271-279.

Klett D, Meslin P, Relav L, Nguyen TM, Mariot J, Jegot G, Cahoreau C, Combarnous Y (2016) Low reversibility of intracellular cAMP accumulation in mouse Leydig tumor cells (MLTC-1) stimulated by human Luteinizing Hormone (hLH) and Chorionic Gonadotropin (hCG). Mol Cell Endocrinol 434: 144-153.

Liu JH, Wu ZF, Sun J, Jiang L, Jiang S, Fu WB (2012) Role of AC-cAMP-PKA Cascade in Antidepressant Action of Electroacupuncture Treatment in Rats. Evid Based Complement Alternat Med: eCAM 2012: 932414.

Nahon E, Israelson A, Abu-Hamad S, Varda SB (2005) Fluoxetine (Prozac) interaction with the mitochondrial voltage-dependent anion channel and protection against apoptotic cell death. FEBS Lett 579: 5105-5110.

Nguyen TD, Filliatreau L, Klett D, Combarnous Y (2018) Comparative effects of sub-stimulating concentrations of non-human versus human Luteinizing Hormones (LH) or chorionic gonadotropins (CG) on adenylate cyclase activation by forskolin in MLTC cells. Gen Comp Endocrinol 261: 23-30.

Nguyen TMD, Klett D, Filliatreau L, Combarnous Y (2019) Inhibition by fluoxetine of LH-stimulated cyclic AMP synthesis in tumor Leydig cells partly involves AMPK activation. PLoS One 14: e0217519.

Pancrazio JJ, Kamatchi GL, Roscoe AK, Lynch C 3rd (1998) Inhibition of neuronal Na+ channels by antidepressant drugs. J Pharmacol Exp Ther 284: 208-214.

Rall TW, Sutherland EW (1959) Formation of a cyclic adenine ribonucleotide by tissue particles. J Biol Chem 232: 1065-1076.

Rebois RV (1982) Establishment of gonadotropin-responsive murine leydig tumor cell line. J Cell Biol 94: 70-76.

Rostovtseva T, Colombini M (1997) VDAC channels mediate and gate the flow of ATP: implications for the regulation of mitochondrial function. Biophys J 72: 1954-1962.

Shoshan-Barmatz V, Gincel D (2003) The voltage-dependent anion channel: characterization, modulation, and role in mitochondrial function in cell life and death. Cell Biochem Biophys 39: 279-292.

Tasken K, Aandahl EM (2004) Localized effects of cAMP mediated by distinct routes of protein kinase A. Physiol Rev 84: 137-167.

Taylor SS, Buechler JA, Yonemoto W (1990) cAMP-dependent protein kinase: framework for a diverse family of regulatory enzymes. Annu Rev Biochem 59: 971-1005.

Tranchant T, Durand G, Gauthier C, Crepieux P, Ulloa-Aguirre A, Royere D, Reiter E (2011) Preferential beta-arrestin signalling at low receptor density revealed by functional characterization of the human FSH receptor A189 V mutation. Mol Cell Endocrinol 331: 109-118.

Wong W, Scott JD (2004) AKAP signalling complexes: focal points in space and time. Nat Rev Mol Cell Biol 5: 959-970.

Downloads

Published

02-11-2020

How to Cite

Mong Diep, N. T., Bich Hang, N. T., Cong Minh, N. L., Thanh Son, T., & Thuy Duong, N. (2020). . Effect of fluoxetine on the inhibition of adenylate cyclase activity in foskolin-stimulated MLTC-1 leydig cells. Vietnam Journal of Biotechnology, 17(4), 595–602. https://doi.org/10.15625/1811-4989/17/4/14743

Issue

Section

Articles