Albumin-binding arginine deiminase and the use thereof

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United States of America Patent

PATENT NO RE47233
SERIAL NO

15658685

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Abstract

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The present invention provides a pharmaceutical composition containing albumin-binding arginine deiminase fusion protein (AAD) for treating cancer or other arginine-dependent diseases. The AAD fission protein can be purified from both soluble and insoluble fractions of crude proteins, it binds to human serum albumin (HSA) and has its high activity with longer half life for efficient depletion of arginine in cancer cells. The specific activities of wild-type ADI and AAD in the present invention are 8.4 and 9.2 U/mg (at physiological pH 7.4), respectively. The AAD used in the present invention can be used in the treatment of various cancers (e.g. pancreatic cancer, leukemia, head and neck cancer, colorectal cancer, lung cancer, breast cancer, liver cancer, nasopharyngeal cancer, esophageal cancer, prostate cancer, stomach cancer & brain cancer) and curing arginine-dependent diseases. The composition can be used alone or in combination with at least one chemotherapeutic agent to give a synergistic effect on cancer treatment and/or inhibiting metastasis.

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Patent Owner(s)

Patent OwnerAddress
VISION GLOBAL HOLDINGS LTDROOM 2301 23/F FU FAI COMMERCIAL CENTRE 27 HILLIER STREET SHEUNG WAN HONG KONG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kwok, Sui Yi Hong Kong, HK 26 118
Leung, Yun Chung Hong Kong, HK 19 33
Wai, Norman Fung Man Vancouver, CA 16 37
Wong, Bing Lou Irvine, US 38 118

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