Ptak A - Search Results

1

Bisphenol A induce ovarian cancer cell migration via the MAPK and PI3K/Akt signalling pathways.

Ptak A, Hoffmann M, Gruca I, Barć J. Ptak A, et al. Toxicol Lett. 2014 Sep 2;229(2):357-65. doi: 10.1016/j.toxlet.2014.07.001. Epub 2014 Jul 2. Toxicol Lett. 2014. PMID: 24997338

2

In vitro exposure of porcine prepubertal follicles to 4-chlorobiphenyl (PCB3) and its hydroxylated metabolites: effects on sex hormone levels and aromatase activity.

Ptak A, Ludewig G, Robertson L, Lehmler HJ, Gregoraszczuk EL. Ptak A, et al. Toxicol Lett. 2006 Jul 1;164(2):113-22. doi: 10.1016/j.toxlet.2005.12.001. Epub 2006 Jan 18. Toxicol Lett. 2006. PMID: 16412591

3

Induction of cytochromes P450, caspase-3 and DNA damage by PCB3 and its hydroxylated metabolites in porcine ovary.

Ptak A, Ludewig G, Kapiszewska M, Magnowska Z, Lehmler HJ, Robertson LW, Gregoraszczuk EL. Ptak A, et al. Toxicol Lett. 2006 Oct 25;166(3):200-11. doi: 10.1016/j.toxlet.2006.07.304. Epub 2006 Jul 14. Toxicol Lett. 2006. PMID: 16949219

Polychlorinated biphenyl (PCBs) levels of tens and hundreds of pg/ml for individual congeners are measured in human follicular fluid. PCB3 (4-chlorobiphenyl), caused a significant increase in estradiol secretion in porcine granulose-theca cell co-cultures and its two metab …

Polychlorinated biphenyl (PCBs) levels of tens and hundreds of pg/ml for individual congeners are measured in human follicular fluid. PCB3 ( …

4

Direct inhibition of ERK1/2 phosphorylation as a possible mechanism for the antiproliferative action of 3,4-diOH-PCB3 in the MCF-7 cell line.

Ptak A, Gut P, Błachuta M, Rak A, Gregoraszczuk EŁ. Ptak A, et al. Toxicol Lett. 2009 Oct 28;190(2):187-92. doi: 10.1016/j.toxlet.2009.07.013. Epub 2009 Jul 18. Toxicol Lett. 2009. PMID: 19619627

5

Comparison of combinatory effects of PCBs (118, 138, 153 and 180) with 17 beta-estradiol on proliferation and apoptosis in MCF-7 breast cancer cells.

Ptak A, Mazur K, Gregoraszczuk EL. Ptak A, et al. Toxicol Ind Health. 2011 May;27(4):315-21. doi: 10.1177/0748233710387003. Epub 2010 Oct 14. Toxicol Ind Health. 2011. PMID: 20947654

6

Effect of bisphenol-A on the expression of selected genes involved in cell cycle and apoptosis in the OVCAR-3 cell line.

Ptak A, Wróbel A, Gregoraszczuk EL. Ptak A, et al. Toxicol Lett. 2011 Apr 10;202(1):30-5. doi: 10.1016/j.toxlet.2011.01.015. Epub 2011 Jan 26. Toxicol Lett. 2011. PMID: 21277958

7

Differential accumulation of HCBz and PeCBz in porcine ovarian follicles and their opposing actions on steroid secretion and CYP11, CYP17, 17β-HSD and CYP19 protein expression. A tissue culture approach.

Gregoraszczuk EŁ, Ptak A, Rak-Mardyła A, Falandysz J. Gregoraszczuk EŁ, et al. Among authors: ptak a. Reprod Toxicol. 2011 May;31(4):494-9. doi: 10.1016/j.reprotox.2011.01.006. Epub 2011 Feb 3. Reprod Toxicol. 2011. PMID: 21296658

8

Hydroxylated estrogens (2-OH-E2 AND 4-OH-E2) do not activate cAMP/PKA and ERK1/2 pathways activation in a breast cancer MCF-7 cell line.

Kwiecinska P, Ptak A, Wrobel A, Gregoraszczuk EL. Kwiecinska P, et al. Among authors: ptak a. Endocr Regul. 2012 Jan;46(1):3-12. Endocr Regul. 2012. PMID: 22329816

9

Bisphenol A induces leptin receptor expression, creating more binding sites for leptin, and activates the JAK/Stat, MAPK/ERK and PI3K/Akt signalling pathways in human ovarian cancer cell.

Ptak A, Gregoraszczuk EL. Ptak A, et al. Toxicol Lett. 2012 May 5;210(3):332-7. doi: 10.1016/j.toxlet.2012.02.003. Epub 2012 Feb 10. Toxicol Lett. 2012. PMID: 22343039

10

Leptin stimulation of cell cycle and inhibition of apoptosis gene and protein expression in OVCAR-3 ovarian cancer cells.

Ptak A, Kolaczkowska E, Gregoraszczuk EL. Ptak A, et al. Endocrine. 2013 Apr;43(2):394-403. doi: 10.1007/s12020-012-9788-7. Epub 2012 Sep 12. Endocrine. 2013. PMID: 22968658 Free PMC article.

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