A great challenge to the continuing search for more efficient and specific anticancer drugs is the unified response by tumor cells to rid themselves of these agents, a process loosely labeled multidrug resistance. While multidrug resistance has now become synonymous with the P-glycoprotein (P-gp) dr
Specific and nonspecific macromolecule–drug conjugates for the improvement of cancer chemotherapy
✍ Scribed by Ester Hurwitz
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1983
- Tongue
- English
- Weight
- 566 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0006-3525
No coin nor oath required. For personal study only.
✦ Synopsis
Antineoplastic drugs such as daunomycin, adriamycin, methotrexate, 5-fluorouridine, cytosine arabinoside, and platinate were bound to antibodies directly or via a polymeric bridge. The drug antibody conjugates retained most oftheir drug and antibody activities when tested in oitro. Daunomycin-antibody conjugates were shown to penetrate tumor cells in the conjugated form. In animals, daunomycin-antibody conjugates were a t least as effective chemotherapeutically as the corresponding free drugs and considerably less toxic. In some tumor systems, the daunomycin-antibody conjugates represented an improvement over the free drug. This improvement was restricted in some tumors to a particular injection route of'the tumor and the treatment.
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Fourteen patients with advanced head and neck carcinomas received a monthly intravenous regimen of Adriamycin, 40 mg/m2, day 1; cyclophosphamide, 400 mg/m2, day 3; and cis-diamminedichloroplatinum, 20 mg/m2/1 hour, days 1-3 (CAP-3). A regression rate of only 7% (0112 squamous cell carcinomas; 112 ad