Abstract: The present invention relates to expression of SARS-CoV like virus proteins [S, M and E] proteins; recombinant polynucleotides, polypeptides; constructs, virus-like particles (VLPs); immunogenic compositions or vaccines comprising Virus Like Particles (VLPs). Method of producing the VLPs/expressing the multi-subunit virus like proteins and method for co-expression of multi-subunit and virus like proteins (VLPs) are also provided. The present invention also provides strategies, methods, systems, kits and combinations for scalable expression, purification and enhanced production of the virus like proteins of SARS-CoV while maintaining their size range and composition. Such multi-subunit VLPs can be utilized to make immunogenic compositions or vaccines.

Abstract: The present invention discloses a device and method for multidimensional cell culture, a more particularly three-dimension (3D) and four-dimension (4D) device and method. The device and method of the present invention comprises growing cells as spheroids/tissueoids on non-woven fabric scaffold to create 3D tissue-like structures. The fourth dimension is provided by ability of the system to generate the 3D tissueoids in a much less time span and their ability to grow for extended period of time, even for greater than one year. The present invention also provides methods of use for analysis of cell-drug sensitivity of the device. Further, the invention provides a device for growth and drug sensitivity characterization of cells.