| | |  | | | | Record from Web of Science® | | | | | | |
| Inhibition of platelet-derived growth factor receptors reduces interstitial hypertension and increases transcapillary transport in tumors |
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| Author(s): Pietras K, Ostman A, Sjoquist M, Buchdunger E, Reed RK, Heldin CH, Rubin K |
| Source: CANCER RESEARCH Volume: 61 Issue: 7 Pages: 2929-2934 Published: APR 1 2001 |
| Times Cited: 184 References: 37 |
| Abstract: Most solid malignancies display interstitial hypertension and a poor uptake of anticancer drugs. Platelet-derived growth factor (PDGF) and the cognate tyrosine kinase receptors are expressed in many tumors. Signaling through PDGF beta receptors was shown recently to increase interstitial fluid pressure (IFP) in dermis after anaphylaxis-induced lowering of IFP. In this study, we show that treatment with the selective PDGF receptor kinase inhibitor, STI571, formerly known as CGP57148B, decreased the interstitial hypertension and increased capillary-to-interstitium transport of Cr-51-EDTA in s.c. growing rat PROb colonic carcinomas, Furthermore, treatment with an antagonistic PDGF-B oligonucleotide aptamer decreased interstitial hypertension in these tumors, PDGF beta receptors were expressed in blood vessels and stromal cells but not in the tumor cells of PROb colonic carcinomas. Our study indicates a previously unrecognized role of PDGF receptors in tumor biology, although similar effects of PDGF on IFP have been demonstrated previously in the dermis, The data suggest interference with PDGF receptors, or their ligands, as a novel strategy to increase drug uptake and therapeutic effectiveness of cancer chemotherapy. |
| Document Type: Article |
| Language: English |
| Reprint Address: Rubin, K (reprint author), BMC, Dept Med Biochem & Microbiol, Box 582, SE-75123 Uppsala, Sweden |
Addresses:
1. Ludwig Inst Canc Res, SE-75124 Uppsala, Sweden
2. Uppsala Univ, Dept Physiol & Comparat Med, SE-75123 Uppsala, Sweden
3. Novartis Pharma AG, Oncol Res, CH-4002 Basel, Switzerland
4. Univ Bergen, Dept Physiol, N-5009 Bergen, Norway
5. Uppsala Univ, Dept Med Biochem & Microbiol, SE-75123 Uppsala, Sweden |
| Publisher: AMER ASSOC CANCER RESEARCH, PO BOX 11806, BIRMINGHAM, AL 35202 USA |
| Subject Category: Oncology |
| IDS Number: 419UM |
| ISSN: 0008-5472 |
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