title: Pulsed ultrasound for enhancing vaccine production.
abstract: Hepatitis B is an infectious liver disease and vaccination is an effective way to protect individuals. We have applied mechanical wave stimulation to increase protein production. To validate our design, we used Sf9 insect cells to increase antigen fragment fusion protein expression for hepatitis B virus (HBV S1/S2). We discovered that stimulation at a frequency of 1.5 MHz, intensity of 60 mW/cm(2), for a duration of 10 minutes per day increased HBV S1/S2 production by 15%. This finding is very significant for shortening vaccine production time or increasing the yield of proteins for use as vaccines.
authors.forename: Jida
authors.initials: J
authors.lastname: Xing
authors.forename: Chenxia
authors.initials: C
authors.lastname: Hu
authors.forename: Allan
authors.initials: A
authors.lastname: Ma
authors.forename: Rajan
authors.initials: R
authors.lastname: George
authors.forename: James Z
authors.initials: JZ
authors.lastname: Xing
authors.forename: Jie
authors.initials: J
authors.lastname: Chen
mesh_terms: D000818:Animals; D002460:Cell Line; D004867:Equipment Design; D006514:Hepatitis B Surface Antigens / Q000235:genetics / Q000378:metabolism*; D017325:Hepatitis B Vaccines; D015202:Protein Engineering / Q000295:instrumentation / Q000379:methods*; D011993:Recombinant Fusion Proteins / Q000235:genetics / Q000378:metabolism*; D000069453:Ultrasonic Waves
chemical_list: D006514:Hepatitis B Surface Antigens; D017325:Hepatitis B Vaccines; D011993:Recombinant Fusion Proteins