کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10584389 | 981330 | 2013 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Peptide conjugates of 4-aminocyclophosphamide as prodrugs of phosphoramide mustard for selective activation by prostate-specific antigen (PSA)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
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چکیده انگلیسی
In our continued effort to develop prodrugs of phosphoramide mustard, conjugates of 4-aminocyclophosphamide (4-NH2-CPA) with three PSA-specific peptides were synthesized and evaluated as substrates of PSA. These include conjugates of cis-(2R,4R)-4-NH2-CPA with a tetrapeptide Succinyl-Ser-Lys-Leu-Gln-OH, a hexapeptide Succinyl-His-Ser-Ser-Lys-Leu-Gln-OH, and a pentapeptide Glutaryl-Hyp-Ala-Ser-Chg-Gln-OH. These conjugates were cleaved by PSA efficiently and exclusively after the expected glutamine residue to release 4-NH2-CPA, the activated prodrug form of phosphoramide mustard. The cleavage was most efficient for the pentapeptide conjugate 3 (Glutaryl-Hyp-Ala-Ser-Chg-Gln-NH-CPA), which showed a half-life of 55Â min with PSA, followed by the hexapeptide conjugate 2 (Succinyl-His-Ser-Ser-Lys-Leu-Gln-NH-CPA) and the tertrapeptide conjugate 1 (Succinyl-Ser-Lys-Leu-Gln-NH-CPA) with half-lives of 6.5 and 12Â h, respectively. These results indicate a potential of the conjugate 3 as an anticancer prodrug of phosphoramide mustard for selective PSA activation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioorganic & Medicinal Chemistry - Volume 21, Issue 23, 1 December 2013, Pages 7507-7514
Journal: Bioorganic & Medicinal Chemistry - Volume 21, Issue 23, 1 December 2013, Pages 7507-7514
نویسندگان
Yongying Jiang, Longqin Hu,