TNC can refer to:

Team and Concepts (TnC) is a Hong Kong-based company founded by David K. F. Lee and others in 2003. It is known as the provider of the Web 2.0 online spreadsheet, EditGrid.

TnC was founded in 2003 in the height of SARS by a group of young entrepreneurs still in their university studies. It started as an information service provider for event organisers; its first product, PEM, was an award-winning web-based event scheduling software. In early 2006, upon securing the Hong Kong Government's funding from the Innovation and Technology Fund, it moved into the Web 2.0 business and launched EditGrid to public in April 2006. One of TnC's Founders was nominated by BusinessWeek as one of the 20 Asia's Best Entrepreneurs under 25 in August 2006.

In June 2007, EditGrid announced a $1.25 million series A investment from the WI Harper Group.

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Tenascin C (TN-C) is a glycoprotein that in humans is encoded by the TNC gene. It is expressed in the extracellular matrix of various tissues during development, disease or injury, and in restricted neurogenic areas of the central nervous system. Tenascin-C is the founding member of the gene family (Tenascin). In the embryo it is made by migrating cells like the neural crest; it is also abundant in developing tendons, bone and cartilage.

Gene and expression

The human tenascin C gene, TNC, is located on chromosome 9 with location of the cytogenic band at the 9q33. The entire Tenascin family coding region spans approximately 80 kilobases translating into 2203 amino acids.

Expression of TN-C changes from development to adulthood. TN-C is highly expressed during embryogenesis and is briefly expressed during oranogensis, while in developed organs, expression is absent or in trace amounts. TN-C has been shown to be upregulated under pathological conditions caused by inflammation, infection, tumorigenesis, and at sites that are subject to unique biomechanics forces.