Article Publish Status: FREE
Abstract Title:

Iscador Qu inhibits doxorubicin-induced senescence of MCF7 cells.

Abstract Source:

Sci Rep. 2017 Jun 19 ;7(1):3763. Epub 2017 Jun 19. PMID: 28630419

Abstract Author(s):

T Srdic-Rajic, J F Santibañez, K Kanjer, N Tisma-Miletic, M Cavic, D Galun, M Jevric, N Kardum, A Konic-Ristic, T Zoranovic

Article Affiliation:

T Srdic-Rajic


Chemotherapy in patients with inoperable or advanced breast cancer inevitably results in low-dose exposure of tumor-cell subset and senescence. Metabolically active senescent cells secrete multiple tumor promoting factors making their elimination a therapeutic priority. Viscum album is one of the most widely used alternative anti-cancer medicines facilitating chemotherapy tolerance of breast cancer patients. The aim of this study was to model and investigate how Viscum album extracts execute additive anti-tumor activity with low-dose Dox using ER + MCF7 breast cancer cells. We report that cotreatment of MCF7 with Viscum album and Dox abrogates G2/M cycle arrest replacing senescence with intrinsic apoptotic program. Mechanistically, this switch was associated with down-regulation of p21, p53/p73 as well as Erk1/2 and p38 activation. Ourfindings, therefore, identify a novel mechanistic axis of additive antitumor activity of Viscum album and low dose-Dox. In conclusion, ER + breast cancer patients may benefit from addition of Viscum album to low-dose Dox chemotherapy due to suppression of cancer cell senescence and induction ofapoptosis.

Study Type : In Vitro Study

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