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김제학(Je Hak Kim),김현수(Hyun Su Kim),김영훈(Young Hoon Kim),정성목(Seong Mok Jeong),신재규(Jae Kyu Shin),최재묵(Jae Mook Choi),고형곤(Hyung Kon Ko) 한국응용약물학회 1997 Biomolecules & Therapeutics(구 응용약물학회지) Vol.5 No.3
CJ-50001 is a recombinant granulocyte-colony stimulating factor (rG-CSF) synthesized by recombinant DNA technology using E. coli as an expression system. The general pharmacological properties of CJ50001 were evaluated in mice, rats, dogs and isolated guinea pig ileum. The doses are 100, 300 and 1,000 ㎍/㎏, i.v. for mice and rats, 1, 10 and 100 ㎍/㎏, i.v. for dogs and 1 and 10㎍/ml for isolated guinea pig ileum. Intravenous administration of CJ-50001 at this dose range did not affect general behavior, central nervous system, smooth muscles, gastrointestinal system, cardiovascular and respiratory system and water and electrolytes excretion. In summary, CJ-50001 had no harmful pharmacological effect in these studies even up to the 200-fold expected clinical dose, 250 ㎍/man.
CJ-50001 (rG-CSF) 의 골수이식모델 마우스에 대한 호중구수 회복 촉진효과
김제학(Je Hak Kim),김현수(Hyun Su Kim),김달현(Dal Hyun Kim),임동문(Dong Moon Lim),조효진(Hyo Jin Cho),김종호(Jong Ho Kim),고형곤(Hyung Kon Ko) 한국응용약물학회 1997 Biomolecules & Therapeutics(구 응용약물학회지) Vol.5 No.4
The peripheral neutrophil recovery test was conducted to determine the efficacy of CJ-50001, a drug developed in Cheil Jedang R&D center as a recombinant granulocyte-colony stimulating factor (rG-CSF). Grasin was used as control drug. CJ-50001 and Grasin were subcutaneously administered to γ-ray irradiated mice for 21 days at a dose of 10 ㎍/kg after bone marrow transplantation and the recovery of neutrophil number was examined on the days of 9, 13, 17, and 21 after the drug administration. It was observed that the peripheral neutrophil number of the vehicle control group was recovered to the normal level on the day of 13 after the transplantation whereas the group administered with CJ-50001 and Grasin respectively, showed the normal level of peripheral neutrophil number on 9th day after the bone marrow transplantation. The number of peripheral neutrophils reached the highest level on the 21st day of drug administration, and was recovered to the normal level on the 4th day after ceasing of the drug administration (on the 25th day of the transplantation). Thus, it was presumed that CJ-50001 showed efficacy similar to Grasin on the peripheral neutrophil recovery after bone marrow transplantation.
재조합 사람 과립구 콜로니 자극인자인 CJ50001 의 중합체의 생물학적 활성과 급성독성에 관한 연구
하석훈(Suk Hoon Ha),이현수(Hyun Soo Lee),김기완(Ki Wan Kim),정종상(Jong Sang Sang),김달현(Dal Hyun Kim),임동문(Dong Moon Lim),김종호(Jong Ho Kim),조효진(Hyo Jin Cho),고형곤(Hyung Kon Ko) 한국응용약물학회 1998 Biomolecules & Therapeutics(구 응용약물학회지) Vol.6 No.1
CJ50001 is a recombinant human granulocyte colony-stimulating factor (rHuG-CSF) that stimulates the formation of neutrophils from bone marrow stem cells. It was produced in E. coli and purified through refolding and several processes. We produced CS970125(300) using purified CJS0001 and additives in order to test the stability of CJ50001. When CS970125(300) was stored at 50℃ for more than 1 week, high molecular weight proteins were formed and those proteins were detected by non-reducing SDS-PAGE, gel filtration HPLC, and Western blot. Those proteins showed single band at the same position of CJ50001 in reducing SDS-PAGE. These data indicated that those high molecular weight proteins were the multimers of CJ50001. In biological assays, in vitro and in vivo, the multimers did not have biological activity and inhibitory action to that of CJ50001. The mutimers did not induce toxicity in mice and rats in acute toxicity test. These results suggest that if CS970125(300) containing CJ50001 is stored at 50℃, CJ50001 will be the multimers that do not have biological activity and inhibitory effect to CJ50001 and do not induce acute toxicity.