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- Newsgroups: sci.med.aids
- Path: sparky!uunet!wupost!usc!ucla-cs!usenet
- From: Billi Goldberg <bigoldberg@igc.apc.org>
- Subject: Shark's Cartilage
- Message-ID: <1992Dec31.173756.23582@cs.ucla.edu>
- Note: Copyright 1992, Dan R. Greening. Non-commercial reproduction allowed.
- Sender: usenet@cs.ucla.edu (Mr Usenet)
- Nntp-Posting-Host: sole.cs.ucla.edu
- Archive-Number: 6696
- Organization: unspecified
- Date: Thu, 31 Dec 92 08:42:40 PST
- Approved: david@stat.com (David Dodell)
- Lines: 54
-
- SHARKS CARTILAGE AND KAPOSI'S SARCOMA
-
- Shark's cartilage is being used as a possible systemic treatment for
- Kaposi's sarcoma. Any comments would be greatly appreciated.
-
- My guess would be that the best thing to do is to inject the shark's
- cartilage directly into the KS lesion. Systemic use for localized KS
- appears to be counterproductive and wasteful. Since cartilage is
- avascular, it would act as a block to the angiogenesis factors after
- they are produced by macrophages and endothelial cells and not in anyway
- inhibit the actual production of the angiogenesis factors. Therefore,
- the cartilage should not in any way have a negative effect on the immune
- system. A local subcutaneous injection of cartilage, since it is
- xenogeneic, might result in a delayed-type hypersensitivity response at
- the local site of use. This could help in clearing the lesion.
-
- The book mentioned below is very, very interesting. Since I believe that
- cancer and AIDS have much in common, I am learning many new things about
- the immune response from a different approach.
- ************************************************************************
- The following is a quote from "Biologic Therapy of Cancer" edited by
- Vincent T. DeVita, Jr., Samuel Hellman, Steven A. Rosenberg published by
- J.B. Lippincott Company in 1991. It is in Chapter 30 "Antiangiogenesis"
- by M. Judah Folkman, Andrus Professor of Pediatric Surgery, Professor of
- Anatomy and Cellular Biology, Harvard Medical School, Senior Assiciate
- in Surgery, Director, Surgical Research Laboratory, The Children's
- Hospital, Boston, Massachusetts.
-
- An Angiogenesis Inhibitor in Cartilage
-
- The first angiogenesis inhibitor was found in cartilage, an avascular
- tissue that resists invasion by many tumors.(1,2) The partially purified
- inbhibitor suppressed tumor growth when it was infused into the vascular
- bed of murine and rabbit tumors.(3) The inhibitor is a peptide of 28,000
- daltons, which has now been purified and partially sequenced.(4)
- Sufficient inhibitor is not yet available to test it by systemic
- administration in tumor-bearing animals.
-
- 1.Eisenstein R, Sorgente N, Soble L, et al: The resistance of certain
- tissues to invasion: Penetrability of explanted tissues by vascularized
- mesenchyme. Am J. Pathol 1973;73:765.
-
- 2.Brem S, Finkelestein D, Chen C, et al: Retinal neovascularization:
- Experimental induction by intravitreal tumor. Invest Opthalmol Suppl
- 1975:14:21.
-
- 3.Langer R, Conn H, Vacanti J, et al: Control of tumor growth in animals
- by infusion of an angiogenesis inhibitor. Proc Natl Acad Sci USA
- 1980;77:4331.
-
- 4.Moses MA, Sudhalter J, Behm J, et al: A cartilage-derived collagenase
- inhibitor co-purifies with an inhibitor of bovine capillary endothelial
- cell proliferation. Fed Pro 1987:46:1991.
-
-