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Molecular and immunohistochemical expression of apoptotic proteins Bax, Bcl-2 and Caspase 3 in infantile hemangioma tissues as an effect of propranolol treatment.

Abstract：

BACKGROUND:Infantile hemangiomas (IHs) are the most common benign tumors of childhood. They are characterized by a unique clinical course with two phases, proliferation and involution, which are followed by regression. The therapy of infantile hemangiomas was revolutionized in 2008 by the introduction of propranolol, however, the mechanism of its influence on hemangiomas remains unclear. METHODS:The study included 71 patients with IHs, 27 of whom were treated with propranolol while the remaining 44 were used as a comparative group. The expression of Bcl-2, Bax and Caspase3 was determined with immunohistochemistry and mRNA of Bax, Bcl-2 and Caspase3 were assessed with the use of RT-PCR. RESULTS:Both methods revealed a statistically significant decrease in Bcl-2 expression and an increase in Bax in IHs tissues after propranolol treatment. CONCLUSIONS:The results obtained for Bax and Bcl-2 proteins may indicate a link between the effect of propranolol and apoptosis. Higher Bax and lower Bcl-2 expression in the propranolol treated group indicates a strong pro- apoptotic action countering any anti-apoptotic activity; apoptosis was indicted in IH tissue as a potential result of propranolol treatment, with potential clinical impact in other tumors.

journal_name

Immunol Lett

journal_title

Immunology letters

authors

Wnęk A,Andrzejewska E,Kobos J,Taran K,Przewratil P

doi

10.1016/j.imlet.2017.03.005

subject

Has Abstract

pub_date

2017-05-01 00:00:00

pages

27-31

eissn

0165-2478

issn

1879-0542

pii

S0165-2478(16)30248-6

journal_volume

185

pub_type

杂志文章

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