Logo Medical Science Monitor

Call: +1.631.470.9640
Mon - Fri 10:00 am - 02:00 pm EST

Contact Us

Logo Medical Science Monitor Logo Medical Science Monitor Logo Medical Science Monitor

04 December 2019 : Laboratory Research  

Orai1 Promotes Osteosarcoma Metastasis by Activating the Ras-Rac1-WAVE2 Signaling Pathway

Yunshan Guo1A*, Jinwen Zhu1B, Xiaodong Wang1C, Ruoyu Li1C, Kuo Jiang1D, Shi Chen2F, Jinzhu Fan3E, Liujie Xue1F, Dingjun Hao1AG

DOI: 10.12659/MSM.919594

Med Sci Monit 2019; 25:9227-9236

Abstract

BACKGROUND: The purpose of this study was to investigate whether Orai1 plays a role in the metastasis of osteosarcoma.

MATERIAL AND METHODS: The expression of Orai1 was silenced by small interfering RNAs against Orai1 (Orai1 siRNA) in osteosarcoma MG-63 cells. Various experiments were carried out to detect the changes in migration, invasion, and adhesion ability of these osteosarcoma cells. Furthermore, the activity of Rac1, Wave2, and Ras was detected using Western blot analysis. Moreover, the Rac1 and Ras inhibitors were used to confirm whether the Ras-Rac1-WAVE2 signaling pathway was involved in osteosarcoma metastasis promoted by Orai1.

RESULTS: We found that the migration, invasion, and adhesion ability of MG-63 cells were significantly reduced after silencing Orai1 expression (p<0.05). Moreover, the activity of the Rac1-WAVE2 signaling pathway was significantly inhibited after silencing of Orai1 expression (p<0.05). After the Rac1 inhibitor was added, Orai1 siRNA could not further inhibit migration, invasion, and adhesion of the osteosarcoma cells. Further experiments showed that Ras activity was significantly inhibited after silencing Orai1 expression (p<0.05). Moreover, Orai1 siRNA did not further inhibit the activity of the Rac1-WAVE2 signaling pathway nor did it further inhibit the migration, invasion, and adhesion ability of osteosarcoma cells following the addition of Ras inhibitors.

CONCLUSIONS: Orai1 activates the Ras-Rac1-WAVE2 signaling pathway to promote metastasis of osteosarcoma. Abnormal expression or function of Orai1 may be an important cause of osteosarcoma metastasis.

Keywords: Genes, ras, Neoplasm Metastasis, Osteosarcoma, Bone Neoplasms, Cell Adhesion, Neoplasm Invasiveness, ORAI1 Protein, RNA, Small Interfering, Wiskott-Aldrich Syndrome Protein Family, ras Proteins

Add Comment 0 Comments

821 15

Editorial

01 June 2023 : Editorial  

Editorial: Infectious Disease Surveillance Using Artificial Intelligence (AI) and its Role in Epidemic and Pandemic Preparedness

Dinah V. Parums
Science Editor, Medical Science Monitor, International Scientific Information, Inc., Melville, NY, USA

DOI: 10.12659/MSM.941209

Med Sci Monit 2023; 29:e941209

0:00

In Press

05 Jun 2023 : Clinical Research  

Comparison of Texture and Color Enhancement Imaging with White Light Imaging in 52 Patients with Short-Segm...

Med Sci Monit In Press; DOI: 10.12659/MSM.940249  

05 Jun 2023 : Laboratory Research  

Comparison of Composite Resin (Duo-Shade) Shade Guide with Vita Ceramic Shades Before and After Chemical an...

Med Sci Monit In Press; DOI: 10.12659/MSM.940949  

02 Jun 2023 : Database Analysis  

The COVID-19 Crisis and the Incidence of Alcohol-Related Deaths in Poland

Med Sci Monit In Press; DOI: 10.12659/MSM.940904  

01 Jun 2023 : Clinical Research  

Root Canal Numbers and Configurations in 1080 Permanent Canine Teeth in 270 Saudi Subjects Using Cone-Beam ...

Med Sci Monit In Press; DOI: 10.12659/MSM.940472  

Most Viewed Current Articles

13 Nov 2021 : Clinical Research  

Acceptance of COVID-19 Vaccination and Its Associated Factors Among Cancer Patients Attending the Oncology ...

DOI :10.12659/MSM.932788

Med Sci Monit 2021; 27:e932788

0:00

30 Dec 2021 : Clinical Research  

Retrospective Study of Outcomes and Hospitalization Rates of Patients in Italy with a Confirmed Diagnosis o...

DOI :10.12659/MSM.935379

Med Sci Monit 2021; 27:e935379

08 Mar 2022 : Review article  

A Review of the Potential Roles of Antioxidant and Anti-Inflammatory Pharmacological Approaches for the Man...

DOI :10.12659/MSM.936292

Med Sci Monit 2022; 28:e936292

01 Jan 2022 : Editorial  

Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...

DOI :10.12659/MSM.935952

Med Sci Monit 2022; 28:e935952

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750