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RISS 인기검색어
- 검색키워드
- 저자 : Wenyan Shang (검색결과 4 건)
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Upregulation of MicroRNA-34a Sensitizes Ovarian Cancer Cells to Resveratrol by Targeting Bcl-2
Shangli Yao,Ming Gao,Zujun Wang,Wenyan Wang,Lei Zhan,Bing Wei 연세대학교의과대학 2021 Yonsei medical journal Vol.62 No.8
Purpose: Resveratrol (REV), a natural compound found in red wine, exhibits antitumor activity in various cancers, includingovarian cancer (OC). However, its potential anti-tumor mechanisms in OC are not well characterized. Here, we tried to elucidatethe underlying mechanisms of REV in OC cells. Materials and Methods: The anti-proliferative effects of REV against OC cells were measured using CCK-8 assay. Apoptosis wasmeasured using an Annexin V-FITC/PI apoptosis detection kit. The anti-metastasis effects of REV were evaluated by invasion assayand wound healing assay. The miRNA profiles in REV-treated cells were determined by microarray assay. Results: Our results showed that REV treatment suppresses the proliferation, induces the apoptosis, and inhibits the invasion andmigration of OV-90 and SKOV-3 cells. miR-34a was selected for further study due to its tumor suppressive roles in various humancancers. We found miR-34a overexpression enhanced the inhibitory effects of REV on OC cells, whereas miR-34a inhibition hadthe opposite effect in OC cells. In addition, we verified that BCL2, an anti-apoptotic gene, was found directly targeted by miR-34a. We also found that REV reduced the expression of Bcl-2 in OC cells. Further investigations revealed that overexpression of Bcl-2significantly abolished the anti-tumor effects of REV on OC cells. Conclusion: Overall, these results demonstrated that REV exerts anti-cancer effects on OC cells through an miR-34a/Bcl-2 axis,highlighting the therapeutic potential of REV for treatment of OC.
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Influence of water-stressed rice on feeding behavior of brown planthopper, Nilaparvata lugens (Stål)
Ye Tan,Mufei Zhu,Wenyan Xu,Wenwu Zhou,Dongdong Lu,Hanwu Shang,Zengrong Zhu 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.2
Climate change can impact insects through abnormal weather conditions such as elevated temperatures and droughts. Crops experiencing periods of water stress from droughts may have significant effects on pest populations because of physiology changes, insect behavior and adaptation. Herewe report on the effects ofwater stress on the rice pest, the brown planthopper (BPH), Nilaparvata lugens (Stål). In themultiple choice test, both the fifth instar nymphs and female adults BPH preferred plants under the low stress level over control and high stress plants. The electrical penetration graph (EPG) showed that the fifth instar nymphs spent more time in non-penetration activities while the female adults spent less. Both the fifth instar nymphs and female adults spent more time in salivation on high stress plants than in control and low stress plants indicating difficulties in feeding. In addition there was marked increase in probe numbers made by both the fifth instar nymphs and the female adults in the feeding duration. The fifth instar nymphs made twice as many numbers of probes than those in the control (9.36 vs to 5.25 min) while the female adults made about 4 times more probes (13.13 vs 3.00 min). Both the fifth instar nymphs and the female adults producedmore honeydewon the lowstress plants suggesting that plants in low water stress favored insect feeding. These findings indicate that BPH in low water stress rice plants seem to do better which supports the theory that drought induces pest outbreaks.
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A Duplex PCR Assay for Rapid Detection of Phytophthora nicotianae and Thielaviopsis basicola
Liu, Na,Jiang, Shijun,Feng, Songli,Shang, Wenyan,Xing, Guozhen,Qiu, Rui,Li, Chengjun,Li, Shujun,Zheng, Wenming The Korean Society of Plant Pathology 2019 Plant Pathology Journal Vol.35 No.2
A duplex PCR method was developed for simultaneous detection and identification of tobacco root rot pathogens Phytophthora nicotianae and Thielaviopsis basicola. The specific primers for P. nicotianae were developed based on its internal transcribed spacer (ITS) regions of ribosomal gene, ras gene and hgd gene, while the specific primers for T. basicola were designed based on its ITS regions and ${\beta}$-tubulin gene. The specificity of the primers was determined using isolates of P. nicotianae, T. basicola and control samples. The results showed that the target pathogens could be detected from diseased tobacco plants by a combination of the specific primers. The sensitivity limitation was $100fg/{\mu}l$ of pure genomic DNA of the pathogens. This new assay can be applied to screen out target pathogens rapidly and reliably in one PCR and will be an important tool for the identification and precise early prediction of these two destructive diseases of tobacco.
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A Duplex PCR Assay for Rapid Detection of Phytophthora nicotianae and Thielaviopsis basicola
Na Liu,Shijun Jiang,Songli Feng,Wenyan Shang,Guozhen Xing,Rui Qiu,Chengjun Li,Shujun Li,Wenming Zheng 한국식물병리학회 2019 Plant Pathology Journal Vol.35 No.2
A duplex PCR method was developed for simultaneous detection and identification of tobacco root rot pathogens Phytophthora nicotianae and Thielaviopsis basicola. The specific primers for P. nicotianae were developed based on its internal transcribed spacer (ITS) regions of ribosomal gene, ras gene and hgd gene, while the specific primers for T. basicola were designed based on its ITS regions and β-tubulin gene. The specificity of the primers was determined using isolates of P. nicotianae, T. basicola and control samples. The results showed that the target pathogens could be detected from diseased tobacco plants by a combination of the specific primers. The sensitivity limitation was 100 fg/μl of pure genomic DNA of the pathogens. This new assay can be applied to screen out target pathogens rapidly and reliably in one PCR and will be an important tool for the identification and precise early prediction of these two destructive diseases of tobacco.
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