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[Importance of the Conjugated Antibody for the Induction of Selective Effect of Adriamycin Conjugated With Anti AFP Monoclonal Antibody and Entrapped in Liposomes Against AFP Producing Tumors]

[Importance of the Conjugated Antibody for the Induction of Selective Effect of Adriamycin Conjugated With Anti AFP Monoclonal Antibody and Entrapped in Liposomes Against AFP Producing Tumors]

H Konno, K Kumai, T Tsubouchi, K Ishibiki, O Abe, T Tadakuma, T Yasuda, K Nagaike, S Hosokawa, S Sakaguchi

Gan To Kagaku Ryoho. 1989 Jun;16(6):2213-7.

PMID: 2472119

Abstract:

We investigated experimentally the effect of adriamycin (ADM) conjugated with anti alpha-fetoprotein (AFP) monoclonal antibodies and entrapped in liposomes (Lip-ADM = AbAFP) in vitro or in vivo. In the present study, we examined the importance of the conjugated antibody for the induction of selective therapeutic effect of Lip-ADM = AbAFP against AFP producing tumors. As the target tumors, AFP producing human hepatoma strain, Li-7, and AFP non-producing human breast cancer strain, MX-1 maintained in BALB/c nu/nu male mice were used. In order to evaluate the importance of the conjugated antibody, we prepared also ADM conjugated with normal mouse IgG, and entrapped in liposomes Lip-ADM = NIgG, of which therapeutic effects were compared with that of Lip-ADM = AbAFP. Judging from the tumor growth curve and the tumor weight, the therapeutic effect of Lip-ADM = AbAFP was greater against Li-7 than that of Lip-ADM = NIgG. On the other hand, both conjugates showed similar effects against MX-1. As the results it is suggested that the antibody which recognizes the antigen expressed on the target tumor cells can solely increase the therapeutic effect of ADM entrapped in liposomes (Lip-ADM) and that the main factors which contribute to the efficient therapeutic effect of the conjugate were the sensitibility to ADM, the affinity of the tumor cells to liposomes and the superiority of the conjugated antibody.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
IAR42414840	Monoclonal Anti-α-Fetoprotein (AFP) antibody produced in mouse			Price

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