24 July 2019 : Laboratory Research
LaSota Strain Expressing The Rabies Virus Glycoprotein (rL-RVG) Suppresses Gastric Cancer by Inhibiting the Alpha 7 Nicotinic Acetylcholine Receptor (α7 nAChR)/Phosphoinositide 3-Kinase (PI3K)/AKT PathwayXuefeng Bu1A, Chaoyun Yin2B, Xuanfeng Zhang12C, Anwei Zhang12D, Xiaomei Shao2E, Yao Zhang23F, Yulan Yan3G*
Med Sci Monit 2019; 25:5482-5492
BACKGROUND: The recombinant avirulent Newcastle disease virus (NDV) LaSota strain expressing the rabies virus glycoprotein (rL-RVG) can induce much greater apoptosis than can NDV in gastric carcinoma cells, but the mechanisms involved remains unclear.
MATERIAL AND METHODS: The 2 gastric carcinoma cell lines were divided into the rL-RVG group, the NDV group, and the PBS group. MTT assay was used to detect and analyze cell viability. siRNA for α7-nAChR, α7-nAChR antagonist, or α7-nAChR agonist, AKT antagonist, and p-AKT agonist were used for pretreatment. The protein expressions of RVG, NDV, α7-nAChR, cleaved caspase-3, p-AKT, PI3K, Bcl-2, and Bax proteins were detected by Western blot assay. Immunofluorescence was used to detect expressions of α7-nAChR proteins. Light microscopy, flow cytometry, and TUNEL assay were used to assess apoptosis.
RESULTS: The results showed that 2 virus concentrations over 10³ dilution caused greater cell proliferation inhibition. rL-RVG treatment increased the expression of α7-nAChR, cleaved caspase-3, and Bax protein but decreased the expression of p-AKT, PI3K, and Bcl-2 protein. When the groups were pretreated with α7-nAChR antagonist, the α7-nAChR, cleaved caspase-3, and Bax protein expression increased, but the expression of p-AKT, PI3K, and Bcl-2 protein was clearly decreased. However, the results in the α7-nAChR agonist group were the opposite. When treated with the AKT antagonist, the result was the same as in the rL-RVG treatment group. The result in the AKT agonist group was the opposite of that in the AKT antagonist group. Compared with the NDV group, the results of light microscopy, FCM, and TUNEL assay showed that α7-nAChR antagonist significantly affected the apoptosis of gastric cancer cells in the rL-RVG group.
CONCLUSIONS: rL-RVG leads to much greater apoptosis through the α7-nAChR/PI3K/AKT pathway.
Keywords: alpha7 Nicotinic Acetylcholine Receptor, Newcastle disease virus, Oncogene Protein v-akt, Rabies virus, Glycoproteins, Peptide Fragments, phosphatidylinositol 3-kinase, Phosphatidylinositol 3-Kinases, Proto-Oncogene Proteins c-akt, Proto-Oncogene Proteins c-bcl-2, Viral Proteins, bcl-2-Associated X Protein
01 February 2023 : EditorialEditorial: The XBB.1.5 (‘Kraken’) Subvariant of Omicron SARS-CoV-2 and its Rapid Global Spread
Med Sci Monit 2023; 29:e939580
19 January 2023 : Clinical ResearchEvaluation of Health-Related Quality of Life and Mental Health in 729 Medical Students in Indonesia During ...
Med Sci Monit In Press; DOI: 10.12659/MSM.938892
19 January 2023 : Clinical ResearchDetermining the Impact of the COVID-19 Pandemic on Dental Care in the Serbian Adult Population: An Online Q...
Med Sci Monit 2023; 29:e939238
27 December 2022 : Clinical ResearchEffect of Physiotherapy to Correct Rounded Shoulder Posture in 30 Patients During the COVID-19 Pandemic in ...
Med Sci Monit 2022; 28:e938926
06 Feb 2023 : Clinical ResearchDouble C-Arm Digital Subtraction Angiography Guidance During Transjugular Intrahepatic Portosystemic Shunt ...
Med Sci Monit In Press; DOI: 10.12659/MSM.938912
06 Feb 2023 : Review articleEvolution of Hybrid Intelligence and Its Application in Evidence-Based Medicine: A Review
Med Sci Monit In Press; DOI: 10.12659/MSM.939366
03 Feb 2023 : Clinical ResearchTreatment of Gingival Recession Defects with Pouch and Tunnel Technique Using Connective Tissue Graft and L...
Med Sci Monit In Press; DOI: 10.12659/MSM.938865
Most Viewed Current Articles
13 Nov 2021 : Clinical ResearchAcceptance of COVID-19 Vaccination and Its Associated Factors Among Cancer Patients Attending the Oncology ...
Med Sci Monit 2021; 27:e932788
30 Dec 2021 : Clinical ResearchRetrospective Study of Outcomes and Hospitalization Rates of Patients in Italy with a Confirmed Diagnosis o...
Med Sci Monit 2021; 27:e935379
08 Mar 2022 : Review articleA Review of the Potential Roles of Antioxidant and Anti-Inflammatory Pharmacological Approaches for the Man...
Med Sci Monit 2022; 28:e936292