Founded | 1995 |
---|---|
Headquarters | Hayward, California |
Key people | Helen S. Kim (President & CEO) |
Number of employees | 90 |
Parent | Bristol Myers Squibb |
Kosan Biosciences, Inc. (stock symbol: KOSN), was a pharmaceutical company which dealt with cancer therapeutics medications. The company was working on advancing two new classes of anticancer agents through clinical development: heat shock protein 90 (Hsp90) inhibitors and epothilones.
Their technology platform was based on manipulation of the genetic instructions of microbes for making natural product polyketides. Rearranging the modular units in natural polyketide synthases, combining modules from different enzymes, and incorporating novel synthetic chemical starter units enabled them to produce a wide variety of novel polyketides that would be difficult to obtain via organic synthesis alone. [1]
Founded in 1995, Kosan was headquartered in Hayward, California and had approximately 90 employees. Kosan was funded in part as a venture capital start-up with funds from Sofinnova Ventures of California. Kosan was one of a small number of biotech companies focussed on polyketide drug discovery and development. Another was Biotica Technology Ltd.. [2]
On June 26, 2008, Kosan Biosciences was acquired by Bristol-Myers Squibb for $190M. [3]
Discodermolide is a recently discovered polyketide natural product found to be a potent inhibitor of tumor cell growth. Kosan had been working in conjunction with the Amos B. Smith research group on a preclinical drug development program.
Helen S. Kim was the President & CEO of Kosan Biosciences in 2008 until it was sold to BMS. [4] [5] One member of the Board of Directors, Dr. Jean Deleage, was one of the founders and managing partners of Burr, Egan, Deleage & Co., a private venture capital firm which invested in information technology, communications, and healthcare/biotechnology companies.
Paclitaxel, sold under the brand name Taxol among others, is a chemotherapy medication used to treat ovarian cancer, esophageal cancer, breast cancer, lung cancer, Kaposi's sarcoma, cervical cancer, and pancreatic cancer. It is administered by intravenous injection. There is also an albumin-bound formulation.
The Bristol-Myers Squibb Company, doing business as Bristol Myers Squibb (BMS), is an American multinational pharmaceutical company. Headquartered in Princeton, New Jersey, BMS is one of the world's largest pharmaceutical companies and consistently ranks on the Fortune 500 list of the largest U.S. corporations. For fiscal 2022, it had a total revenue of $46.2 billion.
ZymoGenetics, Inc was one of the oldest biotechnology/pharmaceutical companies in the USA, based in Seattle, Washington. The company was involved in the development of therapeutic proteins. Located on Lake Union, the address of the ZymoGenetics headquarters was 1201 Eastlake Avenue East. It was closed in 2019 after its acquisition by Bristol Myers Squibb.
In organic chemistry, polyketides are a class of natural products derived from a precursor molecule consisting of a chain of alternating ketone and methylene groups: [−C(=O)−CH2−]n. First studied in the early 20th century, discovery, biosynthesis, and application of polyketides has evolved. It is a large and diverse group of secondary metabolites caused by its complex biosynthesis which resembles that of fatty acid synthesis. Because of this diversity, polyketides can have various medicinal, agricultural, and industrial applications. Many polyketides are medicinal or exhibit acute toxicity. Biotechnology has enabled discovery of more naturally-occurring polyketides and evolution of new polyketides with novel or improved bioactivity.
Exelixis, Inc. is a genomics-based drug discovery company located in Alameda, California, and the producer of Cometriq, a treatment approved by the U.S. Food and Drug Administration (FDA) for medullary thyroid cancer with clinical activity in several other types of metastatic cancer.
Celgene Corporation is a pharmaceutical company that makes cancer and immunology drugs. Its major product is Revlimid (lenalidomide), which is used in the treatment of multiple myeloma, and also in certain anemias. The company is incorporated in Delaware, headquartered in Summit, New Jersey, and a subsidiary of Bristol Myers Squibb (BMS).
(+)-Discodermolide is a polyketide natural product found to stabilize microtubules. (+)-discodermolide was isolated by Gunasekera and his co-workers at the Harbor Branch Oceanographic Institute from the deep-sea sponge Discodermia dissoluta in 1990. (+)-Discodermolide was found to be a potent inhibitor of tumor cell growth in several MDR cancer cell lines. (+)-discodermolide also shows some unique characters, including a linear backbone structure, immunosuppressive properties both in vitro and in vivo, potent induction of an accelerated senescence phenotype, and synergistic antiproliferative activity in combination with paclitaxel. Discodermolide was recognized as one of the most potent natural promoters of tubulin assembly. A large number of efforts toward the total synthesis of (+)-discodermolide were directed by its interesting biological activities and extreme scarcity of natural sources. The compound supply necessary for complete clinical trials cannot be met by harvesting, isolation, and purification. As of 2005, attempts at synthesis or semi-synthesis by fermentation have proven unsuccessful. As a result, all discodermolide used in preclinical studies and clinical trials has come from large-scale total synthesis.
Epothilones are a class of potential cancer drugs. Like taxanes, they prevent cancer cells from dividing by interfering with tubulin, but in early trials, epothilones have better efficacy and milder adverse effects than taxanes.
John Mendlein is a biotech executive who has held leadership positions in biotech companies in Boston, San Diego and Toronto.
Medarex was an American biopharmaceutical company based in Princeton, New Jersey, with manufacturing facilities in Bloomsbury and Annandale, New Jersey, and research facilities in Milpitas and Sunnyvale, California. In 2009, Medarex was purchased by Bristol Myers Squibb.
Amylin Pharmaceuticals, Inc. is a biopharmaceutical founded in 1987 that was based in San Diego, California. The company was engaged in the discovery, development, and commercialization of drug candidates for the treatment of diabetes, obesity, and other diseases. Amylin produced three drugs: Symlin, Byetta (exenatide) and Bydureon.
Elotuzumab, sold under the brand name Empliciti, is a humanized IgG1 monoclonal antibody medication used in combination with lenalidomide and dexamethasone, for adults that have received 1 to 3 prior therapies for the treatment of multiple myeloma. It is also indicated for adult patients in combination with pomalidomide and dexamethasone, who have received 2 prior therapies including lenalidomide and a protease inhibitor. Administration of elotuzumab is done intravenously. Each intravenous injection of elotuzumab should be premedicated with dexamethasone, diphenhydramine, ranitidine and acetaminophen. It is being developed by Bristol Myers Squibb and AbbVie.
Sofinnova is the name shared by two venture capital firms, Sofinnova Partners and Sofinnova Ventures. The name Sofinnova is a contraction of the French, "Société de Financement de l’Innovation" or, Innovation Venture Capital Company. Both firms trace their roots back to Sofinnova SA, an investment institution founded in Paris in 1972. The two firms have raised ~$4B since inception and have generally shared a similar investment strategy of financing projects and ideas in the life sciences and technology sectors. The two firms distinguish themselves on the basis of their target geographies, stage of investment, and sectors. They have been independent entities since 1997.
Dynemicin A is an anti-cancer enediyne drug. It displays properties which illustrate promise for cancer treatments, but still requires further research.
Jeremy Levin is a South African-born businessman, medical doctor and research scientist. In 2018, Levin was named as one of the most influential figures in the biopharmaceutical industry.
Nivolumab, sold under the brand name Opdivo, is a medication used to treat a number of types of cancer. This includes melanoma, lung cancer, malignant pleural mesothelioma, renal cell carcinoma, Hodgkin lymphoma, head and neck cancer, urothelial carcinoma, colon cancer, esophageal squamous cell carcinoma, liver cancer, gastric cancer, and esophageal or gastroesophageal junction (GEJ) cancer. It is administered intravenously.
Chaitan Khosla is an Indian biochemist who is the Wells H. Rauser and Harold M. Petiprin Professor of Chemical Engineering and Chemistry at Stanford University. He earned his B.Tech. in chemical engineering from Indian Institute of Technology Bombay in 1985 and his Ph.D. from the California Institute of Technology in 1990 with Jay Bailey working on the expression of the Vitreoscilla Hemoglobin gene. He did his postdoctoral work at the John Innes Centre with David Hopwood. He has been a professor at Stanford since 1992 and was the chair of the program. His research is focused on two realms, the first are to build a molecular understanding of polyketide synthases and the second is focused on the biochemistry of celiac disease particularly involving tissue transglutaminase. His group play a large role in identifying the role of the α2-gliadin fragment in immune responses.
BMS-906024 is a drug with a benzodiazepine structure, developed by Bristol-Myers Squibb and disclosed at the spring 2013 American Chemical Society meeting in New Orleans to treat breast, lung, colon cancers and leukemia. The drug works as a pan-Notch inhibitor. The structure is one of a set patented in 2012, and is being studied in clinical trials.
BMS-955176 is an experimental second generation HIV maturation inhibitor under development by Bristol-Myers Squibb for use in the treatment of HIV infection. By blocking the maturation of the virus, it prevents viral reproduction in host CD4+ T cells. First generation maturation inhibitors such as bevirimat were ineffective against some naturally occurring changes (polymorphisms) in the Gag protease polyprotein; BMS-955176 has been selected to better tolerate gag polymorphisms.