Erlina Rivanti
Cancer Chemoprevention Research Center Faculty of Pharmacy Universitas Gadjah Mada
Articles
4
Documents
Aktivitas Sitotoksik Ekstrak Etanolik Rimpang Temu Kunci (Boesenbergia pandurata) Terhadap Sel Kanker Serviks HeLa dan Sel Kanker Kolon WiDr

Majalah Kesehatan Pharmamedika Vol 3 N0 1 2011
Publisher : Majalah Kesehatan Pharmamedika

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Abstract

Temu kunci (Boesenbergia pandurata) rhizome showed cytotoxic effect against T47D breast cancer cell line. It contains Panduratin, a chalcone compund, that has been investigated as chemopreventive agent. The exploration of extract of temu kuci as chemopreventive agent was expected to be an alternative for cancer therapy. The aim of this research was to determine the cytotoxic activities of ethanolic extract of temu kunci against HeLa cervix cancer and WiDr colon cancer cell line. The cytotoxic activities of ethanolic extract of temu kunci were tested using MTT assay against HeLa and WiDr cells. The IC50 values were obtained using linier regression equation. The ethanolic extract of temu kunci showed cytotoxic activities on HeLa cervix cancer and WiDr colon cancer cell lines with IC50 at 87 µg/mL and 76 µg/mL, respectively. Low IC50 values (<100 µg/mL) showed that ethanolic extract of temu kunci is potential to be developed as chemoprevention agent on cervix cancer and colon cancer. However, its molecular mecahanism need to be explored.

Taraxacum officinale Leaves Ethanolic Extract as Immunostimulatory Agent For Reducing Side Effect of Doxorubicin in Sprague Dawley Rats

Indonesian Journal of Cancer Chemoprevention Vol 2, No 1 (2011)
Publisher : Indonesian Research Gateway

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Abstract

Doxorubicin as chemotherapeutic agent causes immunosuppresive. The aim  for this study to determine the effect of ethanolic extract of Taraxacum oficinale (ETO) in immunity system of Sprague Dawley  rat that induced  by doxorubicin to observe the profile of immunity cells. Sprague Dawley rats were divided into five groups each groups contain five rats : control doxorubicin group, doxorubicin dose 4,67 mg/kgBW+ ETO dose 1000 mg/kgBW, doxorubicin dose 4,67 mg/kgBW+ ETO dose 500 mg/kgBW, control extract group, and without treatment. Then the number of leukocytes, lymphocytes and neutrophils were analyzed  by hematology analyzer, whereas CD8+ T lymphocytes by flowcytometry. Results showed groups of  doxorubicin combined with ETO dose 1000 mg/kgBW and 500 mg/kgBW increased the number of leukocytes, lymphocytes, neutrophils,  cytotoxic CD8 + T cells  T cells compared  to control doxorubicin group. These data presents that etanolic extract of Jombang leaves has  immunostimulatory activity and potential as co-chemotherapy agents. Molecullar mechanism underlaying it’s immune activity need to be explored in detail.

Secang (Caesalpinia sappan L.) Heartwood Ethanolic Extract Shows Activity as Doxorubicin Co-chemotherapeutic Agent by Apoptosis Induction on T47D Breast Cancer Cells

Indonesian Journal of Cancer Chemoprevention Vol 3, No 2 (2012)
Publisher : Indonesian Research Gateway

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Abstract

Doxorubicin, primary chemoteurapeutic agent used for breast cancer treatment, is known to have various side effects included multi drug resistance 9MDR) phenomenon. Therefore, exploration of co-chemotherapeutic agent is important to be conducted in order to prevent MDR. Secang (Caesalpinia sappan L.) which contains active compounds brazilin and brazilein, is proven to have activity as anticancer. The aim of this study is to determine the potency of Caesalpinia sappan L.ethanolic extract (CEE) as co-chemotherapeutic agent of doxorubicin and its mechanism through apoptosis induction on T47D breast cancer cells. Caesalpinia sappan L. heartwood powder was macerated with ethanol 70%. The cytotoxic effect of CEE alone and its combination with doxorubicin was analyzed using MTT assay. Apoptosis assay was done by flowcytometry-annexin V method. CEE showed cytotoxic activity on T47D cells with IC50 value of 35 μg/ml, while combinatorial test showed that all of combination doses of CEE and doxorubicin gave synergistic effect. Flowcytometry-annexin V assay proved that treatment of CEE induced apoptosis of doxorubicin. Based on these results, we conclude that Caesalpinia sappan L. heartwood ethanolic extract is potential to be developed as co-chemotherapeutic agent of doxorubicin.Keywords : Caesalpinia sappan L., doxorubicib, apoptosis, T47D cells. 

Ethanolic Extract of Mangosteen (Garcinia mangostana) Peel Inhibits T47D and Hela Cells Line Proliferation Via Nf-kB Pathway Inhibition

Indonesian Journal of Cancer Chemoprevention Vol 3, No 2 (2012)
Publisher : Indonesian Research Gateway

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Abstract

Effective and selective chemoterapeutic and chemopreventive agent is needed to cure breast and cervical cancers. One of the potential natural material is mangosteen peel (Garcinia mangostana). In this study, we observed cytotoxic effect of ethanolic extract of mangosteen peel (EMP) on HeLa cells line and T47D cells line. The cytotoxic effect was determined using MTT assay. EMP showed cytotoxic effect on T47D cells and HeLa cells with IC50 values of 2.07 μg/ml and 10.58 μg/ml respectively. Molecular docking simulation was done to predict the molecular mechanism of active compund in mangosteen peel extract, α-mangostin, in NFκB pathway which is one of the potential pathway to induce cytotoxicity on T47D and HeLa cells. Docking was done using PLANTS software and the binding score between α-mangostin and proteasom is -78,12, whereas the binding score between α-mangostin and IKK is -86.84. These results showed the possiblity mechanism of mangostin peel extract containing α-mangostin inhibits IKK activation in NFκB pathway. Based on this study, we conclude that mangosteen peel extract is potential to be developed as chemopreventive agent toward cervical and breast cancers.Keywords : Mangosteen peel (Garcinia mangostana), cytotoxic, T47D cells, HeLa cells, NFκB