EFFECTS OF CO-CHEMOTHERAPY ETHYL ACETATE FRACTION OF EURYCOMA LONGIFOLIA JACK ROOTS AND DOXORUBICIN AGAINST APOPTOSIS THROUGH EXPRESSION P53 MUTANT AND BCL-2
Abstract: It was found
mutations of p53 gene in Breast cancer. Mutant p53 protein caused a decrease in
cell apoptosis mechanisms through increased expression of Bcl-2. Breast cancer
therapy is commonly used chemotherapy using Doxorubicin. However, effectiveness
of the use of this chemotherapeutic agent is limited due to the emergence of side
effects and toxic to normal cells. Therefore, it is necessary to develop new
drugs for combination of chemotherapy. Eurycoma longifolia Jack roots has the
potential as co-chemotherapy of breast cancer and it is not toxic to normal
cells.
Method : Rats were divided into 5 groups. Each group consisted of four
female white Sprague Dawley rats. Group 1 (Normal), group 2 (DMBA 20 mg/kgB.W),
group 3 (DMBA +Doxorubicin 1.12 mg/kgB.W), group 4 (DMBA +fractions 100
mg/kgB.W), group 5 (DMBA+Doxorubicin +fractions). All the rats were sacrificed
at weeks 16 and to be taken their breast tissue. Immunohistochemistry was
performed using a mouse monoclonal antibody mutant (BioGenex) and Bcl-2
(BIOSS).
Results : expression of mutant p53 percentage obtained for group I (9.35
± 0.32)%, II (21.65 ± 1.60)%, III (10.72 ± 2.52)%, IV (11.63 ± 3.39)%, V (12.72
± 3.44)%, While the percentage of Bcl-2 expression obtained for I (20.62 ±
10.09)%, II (52.83 ± 3.61)%, III (24.38 ± 3.54)%, IV (38.01 ± 6.25)%, V (27.99
± 4.27)%. The data was statistically tested by Kruskal Wallis test (p<
0.005).
Conclussion : Co-chemotherapy of E. longifolia Jack roots and Doxorubicin
can stimulate apoptosis through decreased in the expression of mutant p53
protein and Bcl-2 in breast tissue of rats induced by DMBA.
Keywords: Eurycoma longifolia
Jack root mutant p53 Bcl-2 co-chemotherapy apoptosis
Author: Galih Dwi Mulyati
Journal Code: jpkedokterangg170266
