Objective: This study aimed to investigate the cytotoxicity, anti-proliferation and anti-migration effect of the ethanol extract of Aaptos suberitoides on trastuzumab-resistant HER2+ breast cancer cell line. Methods: Aaptos suberitoides was collected from Tinjil Island, Banten, Indonesia, and was processed with maceration and ethanol extraction. HCC-1954 cells were treated with the ethanol extract and then followed by 3-[4, 5-dimethylthiazol-2-yl] -2.5 diphenyl tetrazolium bromide (MTT) assay to assess cytotoxicity, clonogenic assay and three-dimensional (3D) spheroid assay to evaluate anti-proliferative effect in two-dimensional and 3D model, respectively, and wound healing assay to determine anti-cell migration effect. Four parametric regression was used to analyse the IC 50 . Results: This study revealed that the ethanol extract of Aaptos suberitoides suppressed cell viability in correlation with cell death induction. The IC 50 values of the ethanol extract of Aaptos suberitoides using MTT assay and clonogenic assay were 12.0 ppm and 4.36 ppm, respectively. The extract demonstrated an inhibition effect on spheroid growth. In low concentration, the extract of Aaptos suberitoides inhibited cell migration. Furthermore, MS analysis showed that the most abundant compounds in this extract has molecular weight m/z 229.81 [M+H]+. Conclusion: This study revealed that the ethanol extract of Aaptos suberitoides demonstrates cytotoxicity, anti-proliferation and anti-migration effect as well as inhibition effect on three-dimensional spheroid growth in trastuzumab-resistant HER2+ breast cancer cell line.
Objective: Despite advanced treatment options available, drug resistance develops in breast cancer (BC) patients requiring novel effective drugs. Stylissa carteri, a marine sponge predominantly living in Indonesia territories, has not been extensively studied as anti-cancer. Therefore, this study targeted to assess the anti-tumor activity of the ethanol extract of S. carteri in BC cells. Methods: S. carteri was collected from Pramuka Island, at Kepulauan Seribu National Park, Jakarta, Indonesia and extracted using ethanol. Different BC cells including MDA MB 231, MDA MB 468, SKBR3, HCC-1954 and MCF-7 cells were treated with this extract for cytotoxic analysis using MTT assay. Spheroid growth assay and apoptosis assay were conducted in HCC-1954 cells. In addition, cell migration analysis and synergistic activity with doxorubicin or paclitaxel were conducted in MDA MB 231 cells. This extract was subjected also for GC-MS analysis. Results: The results show that ethanol extract of S. carteri demonstrated a cytotoxic activity in BC cells. The IC 50 of this extract was lower 15 μg/ml in MDA MB 231, MDA MB 468, SKBR3, and HCC-1954 cells. Moreover, this extract inhibited spheroids growth and induced apoptosis in HCC-1954 cells. It inhibited cell migration and demonstrated a synergistic activity with doxorubicin or paclitaxel on triggering cell death in MDA MB 231 cells. Furthermore, GC-MS analysis indicated that this extract contained 1,2-Benzenediol, Dibutyl phthalate and 9,12-Octadecadienoic acid, ethyl ester. Conclusion: Our preliminary data indicate a potential anti-tumor activity of ethanol extract of S. carteri in breast cancer cells.
Objective: Despite advanced treatment options available for colorectal cancer, many reported resistance and unresponsiveness to conventional chemotherapeutic agents. Therefore, it is urgent to discover a novel drug for colon cancer. Sarang Semut (Myrmecodia pendans), an Indonesian native plant, has been studied extensively due to its anti-cancer profiles. This study aimed to evaluate the anti-tumour activity of Sarang Semut in colon cancer cells. Methods:We evaluated cytotoxic activity of methanol extract as well as n-hexane and ethyl acetate fraction towards colon cancer cell lines (Caco-2 and HCT-116 cells) utilizing 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide (MTT) assay. The most potent fraction was evaluated further in inhibiting cell survival using MTT assay and cell proliferation using trypan blue exclusion assay as well as a clonogenic assay. Results:Our data showed that the n-hexane fraction of Sarang Semut induces more cell death than the methanol extract and ethyl acetate fraction. Therefore, we analyzed the n-hexane fraction further and found that the inhibitory concentration 50% (IC50 Conclusion:The n-hexane fraction of Sarang Semut demonstrates a high potential antitumor activity in colon cancer cell line.) of the n-hexane fraction was 24 and 30 parts per million (ppm) for Caco-2 and HCT-116 cells, respectively. Moreover, it inhibited cell growth as well as cell colony formation, in particular, shown by the plating efficiency (P<0.05) and colony area per seed (P<0.01) of the control group were different to the treatment group.
Background: Colorectal cancer is the second leading cause of mortality and the most prevalent cancer worldwide. Most patients, who come with late-stage, have ineffective treatments and some side effects in chemotherapy. Aaptos suberitoides has potential anti-cancer effects due to its bioactive compounds such as aptamine. This study aimed to evaluate the migration inhibition effect of Aaptos suberitoides fraction in HCT-116 cell line.Methods: This study was an experimental study. Aaptos suberitoides specimen was taken in Tinjil Island and fractionated with ethyl acetate. HCT-116 cell line was added with Aaptos suberitoides fraction and cellular migration activity was observed in 48 hours of which the scratch assay was performed. The gap closure area was determined with ImageJ software.Results: The data showed that a low concentration of Aaptos suberitoides fraction inhibited migration activity in HCT-116 cell line as follow; 1 and 5 mg/L Aaptos suberitoides fraction inhibit 3-4 % cancer cell migration in 24 hours, and 10-11% inhibition in 48 hours, respectively. However, 10 mg/L fraction concentration only inhibited 7-14% of the migration effect.Conclusion: Aaptos suberitoides fraction suggests insignificant migration inhibition in colorectal cancer cells and only inhibits less than 15 % HCT-116 cell line.
Objective: To evaluate the potency of the fraction of marine sponge Stylissa carteri in inducing cell death, inhibiting spheroid growth, and its impact on pro-apoptotic protein Mcl-1S in breast cancer cells. Methods: Stylissa carteri were collected from Pramuka Island followed by ethanol extraction and ethyl acetate fractionation. To evaluate the cytotoxic effect of fraction, the HCC-1954, MDA MB 231, and MCF-7 cells were treated with the fraction of Stylissa carteri and MTT assay was then performed. The effect on spheroid growth was evaluated in HCC-1954 cells. The combined effect of the ethyl acetate fraction and paclitaxel were analyzed using combination index (CI) and immunoblotting on the pro-apoptotic protein Mcl-1S. Furthermore, compounds in this fraction were identified using GC-MS. Results: Data showed that both the MDA MB 231 and HCC-1954 cells were interestingly more sensitive to the fraction as compared with MCF-7 cells. The IC 50 of the ethyl acetate fraction on HCC-1954, MDA MB 231 and MCF-7 were 4.1 µg/ml, 3.9 µg/ml, and 123.8 µg/ml, respectively. In addition, the fraction triggered spheroid destruction within 10 days. The CI of paclitaxel and ethyl acetate fraction of Stylissa carteri were less than 0.52. Moreover, this combination induced upregulation of the Mcl-1S protein. Furthermore, some fatty acid-based structures were predicted as the major compounds in this fraction. Conclusion: The ethyl acetate fraction of Stylissa carteri induces cell death and spheroid destruction in aggressive breast cancer cells. It has a synergistic cytotoxic effect with paclitaxel on MDA MB 231 cell death and upregulates Mcl-1S protein.
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