The United States of America As Represented by the Administrator of the

The United States of America As Represented by the Administrator

Vivorx Pharmaceuticals, Inc.

Cmed, Inc.

Hmri/clmf

Glenn F Spaulding

Thomas John Goodwin

Tacey L Prewett

David A Wolf

Karen M Francis

Kim C O'Connor

Steven L Koontz

Marylou Ingram

Chuen Pei Ng

Mike Zerkus

James J Craft

Angela D Andrews

Ozkan Yazan

Laurie A Aten

Ramez Saroufeem

Wendy S Fitzgerald

Geza B Techy

Delmar R Caldwell

A process for propagating a pathogen in a three-dimensional tissue mass cultured at microgravity conditions in a culture vessel containing culture media and a culture matrix is provided. The three-dimensional tissue mass is inoculated with a pathogen and pathogen replication in the cells of the tissue mass achieved.

Pathogen propagation in cultured three-dimensional tissue mass

A novel hydrodynamic cell culture environment is disclosed for a two-chamber roller bottle. The unstable hydrodynamics of a gas headspace media chamber is coupled through a center opening to a second zero headspace culture chamber. Coupling the two chambers creates novel fluid streamlines that add turbulence for improved mass transfer and slow media repletion. The exchange between chambers regulates turbulence and thus concomitant exchange of nutrients i.e., environmental control. It is disposable, automatable, and suited to culturing tissue for transplants.

Controlled hydrodynamic cell culture environment for three dimensional

A process for artificially producing three-dimensional optic tissue has been developed. The optic cells are cultured in a bioreactor at low shear conditions. The tissue forms as normal, functional tissue grows with tissue organization and extracellular matrix formation.

Three dimensional optic tissue culture and process

A horizontally rotating cell culture system with enhanced oxygenation is described. The system achieves greater oxygenation through the use of a multiphase motor and non-linear acceleration/deceleration, to disrupt the establishment of boundary layers.

Method and apparatus for augmenting mass transfer in a rotating cell

Normal mammalian tissue and the culturing process has been developed for the three groups of organ, structural and blood tissue. The cells are grown in vitro under micro-gravity culture conditions and form three dimensional cells aggregates with normal cell function. The microgravity culture conditions may be microgravity or simulated micro-gravity created in a horizontal rotating wall culture vessel. The medium used for culturing the cells, especially a mixture of epithelial and mesenchymal cells contains a mixture of Mem-alpha and Leibovits L15 supplemented with glucose, galactose and fructose.

Production of normal mammalian organ culture using a medium containing

Artificial high-fidelity three-dimensional human urogenital tract carcinomas are propagated under in vitro-microgravity conditions from carcinoma cells. Artificial high-fidelity three-dimensional human urogenital tract carcinomas are also propagated from a coculture of normal urogenital tract cells inoculated with carcinoma cells. The microgravity culture conditions may be microgravity or simulated microgravity created in a horizontal rotating wall culture vessel.

Cultured high-fidelity three-dimensional human urogenital tract

A process has been developed for recombinant production of selected polypeptides using transformed insect cells cultured in a horizontally rotating culture vessel modulated to create low shear conditions. A metabolically transformed insect cell line is produced using the culture procedure regardless of genetic transformation. The recombinant polypeptide can be produced by an alternative process using virully infected or stably transformed insect cells containing a gene encoding the described polypeptide. The insect cells can also be a host for viral production.

Recombinant protein production and insect cell culture and process

An annular culture vessel for growing mammalian cells is constructed in a one piece integral and annular configuration with an open end which is closed by an endcap. The culture vessel is rotatable about a horizontal axis by use of conventional roller systems commonly used in culture laboratories. The end wall of the endcap has tapered access ports to frictionally and sealingly receive the ends of hypodermic syringes. The syringes permit the introduction of fresh nutrient and withdrawal of spent nutrients. The walls are made of conventional polymeric cell culture material and are subjected to neutron bombardment to form minute gas permeable perforations in the walls.

Constructing a high density cell culture system

A cell culture chamber with a novel hydrodynamic environment, constructed with gas permeable membranes is disclosed. The culture chamber is horizontally rotated, wall movement suspends cells and enhances oxygen mass transfer as cells aggregate and grow into 3-dimensional tissue.

Hydrodynamic cell culture environment for three dimensional tissue growth

Normal mammalian tissue and the culturing process has been developed for the three groups of organ, structural and blood tissue. The cells are grown in vitro under microgravity culture conditions and form three dimensional cells aggregates with normal cell function. The microgravity culture conditions may be microgravity or simulated microgravity created in a horizontal rotating wall culture vessel.

Method for producing non-neoplastic, three dimensional, mammalian tissue

A portion of an organic polymer article such as a membrane is made hydrophilic by exposing a hydrophobic surface of the article to a depth of about 50 to about 5000 angstroms to atomic oxygen or hydroxyl radicals at a temperature below 100.degree. C., preferably below 40.degree. C., to form a hydrophilic uniform surface layer of hydrophilic hydroxyl groups. The atomic oxygen and hydroxyl radicals are generated by a flowing afterglow microwave discharge, and the surface is outside of a plasma produced by the discharge. A membrane having both hydrophilic and hydrophobic surfaces can be used in an immunoassay by adhering antibodies to the hydrophobic surface. In another embodiment, the membrane is used in cell culturing where cells adhere to the hydrophilic surface. Prior to adhering cells, the hydrophilic surface may be grafted with a compatibilizing compound. A plurality of hydrophilic regions bounded by adjacent hydrophobic regions can be produced such that a maximum of one cell per each hydrophilic region adheres.

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Houston, TX, United States of America

Glenn F Spaulding