title: Rapid screening of serum-free media for the growth of adherent Vero cells by using a small-scale and non-invasive tool.
abstract: The paper proposes a rapid screening method for a first step improvement of an animal component-free medium dedicated to the growth of the anchorage-dependent Vero cell line. A new, rapid, and non-invasive technique is presented to specifically monitor cultures of adherent cells in 96-well plates. The operating conditions of an image analyzer are adapted to take into account the decrease of cell size when the attached cell density increases. An experimental design is carried out to assess the influence of ten component groups in the original medium. Two groups including protein extracts, growth factor, insulin, glucose, and pyruvate show significant positive effects. The groups with vitamins and molecules related to nitrogenous bases display a less pronounced influence. The mixture of amino acids, B(1) vitamin, magnesium sulfate, and sodium phosphate as well as the couple sodium citrate and ferric chloride lead to a downward trend. The screening results are proved to be scalable in stirred cultures with cells on microcarriers. An improved serum-free medium, with some component groups being removed or added, can be rapidly formulated to reach respectively similar or 1.6 times higher cell density than in the original medium. The results from this global approach could be helpful to further focus experiments on identified medium components.
authors.affiliation: Laboratoire des Sciences du Génie Chimique, UPR CNRS 6811, Nancy-Université, 2 avenue de la Forêt de Haye, 54505, Vandoeuvre-lès-Nancy Cedex, France.
authors.forename: Emma
authors.initials: E
authors.lastname: Petiot
authors.forename: Frantz
authors.initials: F
authors.lastname: Fournier
authors.forename: Cécile
authors.initials: C
authors.lastname: Gény
authors.forename: Hervé
authors.initials: H
authors.lastname: Pinton
authors.forename: Annie
authors.initials: A
authors.lastname: Marc
mesh_terms: D000818:Animals; D002448:Cell Adhesion / Q000187:drug effects; D018929:Cell Culture Techniques / Q000295:instrumentation* / Q000379:methods*; D049109:Cell Proliferation / Q000187:drug effects; D002522:Chlorocebus aethiops; D016895:Culture Media, Serum-Free / Q000494:pharmacology*; D007700:Kinetics; D008954:Models, Biological; D013499:Surface Properties / Q000187:drug effects; D013997:Time Factors; D014709:Vero Cells
chemical_list: D016895:Culture Media, Serum-Free