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Enzymatically active cathepsin D sensitizes breast carcinoma cells to TRAIL

. 2016 Aug ; 37 (8) : 10685-96. [epub] 20160211

Language English Country United States Media print-electronic

Document type Journal Article

Links

PubMed 26867770
DOI 10.1007/s13277-016-4958-5
PII: 10.1007/s13277-016-4958-5
Knihovny.cz E-resources

Cathepsin D (CD), a ubiquitously expressed lysosomal aspartic protease, is upregulated in human breast carcinoma and many other tumor types. CD has been repeatedly reported to act as key mediator of apoptosis induced by various chemotherapeutics. However, there is still controversy over the role of enzymatic/proteolytic versus protein-protein interaction activities of CD in apoptotic signaling. The elucidation of molecular mechanism responsible for the effect of CD in the chemotherapy-induced cell death is crucial for development of an appropriate strategy to target this protease in cancer treatment. Therefore, the objective of this study was to investigate the molecular mechanism behind the CD-mediated regulation of tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-induced cell death. For this purpose, MDA-MB-231 breast carcinoma cells with an increased level of wt CD (CD) or mutant enzymatically inactive CD (ΔCD) were subjected to TRAIL and the frequency of apoptosis was determined. Our results show that CD facilitates the TRAIL-induced apoptosis of MDA-MB-231 breast cancer cells in enzymatic activity-dependent manner. Moreover, the importance of endosomal/lysosomal acidification in this process was documented. Analysis of the potential substrates specifically cleaved by CD during the TRAIL-induced apoptosis confirmed caspase-8 and Bid proteins as the CD targets. Moreover, in search for protein regulators of apoptosis that can be cleaved by CD at physiologically relevant pH, we identified the Bcl-2 protein as a suitable candidate. The modulatory role of CD in cell response to TRAIL was also confirmed in another breast cancer cell line SKBR3. These experiments identified the CD enzymatic activity as a new factor affecting sensitivity of breast cancer cells to TRAIL.

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Mol Cancer. 2012 Mar 23;11:15 PubMed

Int J Cancer. 2002 Feb 20;97(6):775-9 PubMed

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Nat Cell Biol. 2000 Jun;2(6):318-25 PubMed

Oncogene. 2002 Aug 1;21(33):5127-34 PubMed

J Biol Chem. 2012 Jun 15;287(25):21142-51 PubMed

Biochimie. 2010 Nov;92(11):1635-43 PubMed

Arch Pathol Lab Med. 2000 Jul;124(7):966-78 PubMed

J Biochem. 2006 Mar;139(3):583-90 PubMed

Biol Chem. 2012 Dec;393(12):1417-31 PubMed

Cell Death Dis. 2013 Jul 04;4:e702 PubMed

Cancer Res. 1989 Jul 15;49(14 ):3776-82 PubMed

Crit Rev Oncol Hematol. 2008 Oct;68(1):12-28 PubMed

J Cell Biochem. 1996 Jan;60(1):12-7 PubMed

Annu Rev Cell Biol. 1989;5:483-525 PubMed

Cell Death Differ. 2004 May;11(5):550-63 PubMed

J Biol Chem. 2011 Feb 25;286(8):6602-13 PubMed

J Biol Chem. 2007 Sep 28;282(39):28960-70 PubMed

Cancer Lett. 2013 May 28;332(2):265-74 PubMed

EMBO J. 1998 Mar 16;17(6):1675-87 PubMed

Biochim Biophys Acta. 2015 May;1853(5):1182-94 PubMed

Ann Clin Lab Sci. 2012 Summer;42(3):231-42 PubMed

Mol Cell. 1999 Oct;4(4):563-71 PubMed

J Cell Biochem. 2007 Aug 15;101(6):1558-66 PubMed

J Cell Biol. 2005 Jan 31;168(3):489-99 PubMed

FASEB J. 2001 Jul;15(9):1592-4 PubMed

Cell. 1998 Aug 21;94(4):491-501 PubMed

Breast Cancer Res Treat. 1999 May;55(2):137-47 PubMed

Immunity. 2000 Jun;12(6):611-20 PubMed

Cancer Lett. 2012 Oct 28;323(2):208-14 PubMed

Cold Spring Harb Perspect Biol. 2013 Jan 01;5(1):a008755 PubMed

Mol Cancer Ther. 2005 May;4(5):733-42 PubMed

Oncogene. 2002 Aug 29;21(38):5951-5 PubMed

J Biol Chem. 2003 Aug 15;278(33):31401-11 PubMed

J Clin Invest. 1999 Jul;104(2):155-62 PubMed

Curr Med Chem. 2010;17(29):3309-17 PubMed

EMBO J. 1996 Aug 1;15(15):3861-70 PubMed

Nat Med. 1999 Feb;5(2):157-63 PubMed

Apoptosis. 2006 Jul;11(7):1149-59 PubMed

Cell Death Dis. 2013 Feb 21;4:e507 PubMed

Oncogene. 1990 Dec;5(12):1809-14 PubMed

Biol Chem. 2002 Jul-Aug;383(7-8):1237-48 PubMed

Oncogene. 2006 Mar 23;25(13):1967-73 PubMed

Glia. 2003 Aug;43(2):167-74 PubMed

Carcinogenesis. 2008 Oct;29(10 ):1869-77 PubMed

Clin Cancer Res. 2005 Jun 1;11(11):4259-65 PubMed

Cell Death Differ. 2003 Sep;10(9):1090-100 PubMed

Cell Biol Int Rep. 1983 Jun;7(6):405 PubMed

Biochim Biophys Acta. 2008 Oct;1783(10):1755-66 PubMed

Cancer Biol Ther. 2010 Sep 1;10(5):457-66 PubMed

Oncogene. 1998 Apr 30;16(17):2177-83 PubMed

FEBS J. 2013 Jul;280(14):3436-50 PubMed

Biochimie. 2013 Nov;95(11):2010-7 PubMed

Cell Death Differ. 2003 Nov;10(11):1253-9 PubMed

J Biol Chem. 2008 Jul 4;283(27):19140-50 PubMed

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