| Title |
Andrographolide radiosensitizes human ovarian cancer SKOV3 xenografts due to an enhanced apoptosis and autophagy
|
|---|---|
| Published in |
Tumor Biology, May 2015
|
| DOI | 10.1007/s13277-015-3578-9 |
| Pubmed ID | |
| Authors |
Chao Zhang, Xingsheng Qiu |
| Abstract |
Andrographolide (AND), a diterpenoid lactone isolated from Andrographis paniculata, has been shown to have radiosensitivity in several types of cancer. Whether AND can radiosensitize ovarian cancer remains unknown. The present study investigated the radiosensitizing effects of AND in human ovarian SKOV3 xenografts and examined the molecular mechanisms of AND-mediated radiosensitization. Nude mice bearing human ovarian SKOV3 were treated with AND to investigate the effects of drug administration on tumor growth, radiosensitivity, apoptosis, and autophagy. Subsequent Western blot analysis and monodansylcadaverine (MDC) staining (autophagy analysis) were used to determine the role of AND. Finally, the pathway of apoptosis was characterized by caspase-3 activity assay as well as TUNEL analysis. AND potently sensitized SKOV3 xenografts to radiation. Moreover, apoptosis and autophagy in radiation combined with drug-treated xenografts increased significantly compared with the simple drug or single radiation treatment. This result was associated with an increase in the Bax/Bcl-2 protein ratio and p-p53 expression after exposure to combination treatment. Meanwhile, the level of Beclin 1 and Atg5 and the conversion from LC3-I to LC3-II, three important proteins involved in autophagy, were increased. AND acts as a strong radiosensitizer in human ovarian SKOV3 xenografts in vivo by increasing the Bax/Bcl-2 protein ratio and promoting the activation of caspase-3, leading to enhanced apoptosis as well as autophagy. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 19 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 19 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 4 | 21% |
| Student > Master | 2 | 11% |
| Unspecified | 1 | 5% |
| Student > Bachelor | 1 | 5% |
| Researcher | 1 | 5% |
| Other | 1 | 5% |
| Unknown | 9 | 47% |
| Readers by discipline | Count | As % |
|---|---|---|
| Biochemistry, Genetics and Molecular Biology | 2 | 11% |
| Chemistry | 2 | 11% |
| Medicine and Dentistry | 2 | 11% |
| Unspecified | 1 | 5% |
| Pharmacology, Toxicology and Pharmaceutical Science | 1 | 5% |
| Other | 3 | 16% |
| Unknown | 8 | 42% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 28 May 2015.
All research outputs
#20,274,720
of 22,807,037 outputs
Outputs from Tumor Biology
#1,834
of 2,622 outputs
Outputs of similar age
#222,918
of 266,679 outputs
Outputs of similar age from Tumor Biology
#104
of 161 outputs
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