Tumor vasculature targeted therapies: getting the players organized

G Molema1, D K Meijer, L F de Leij

  • 1Department of Clinical Immunology, Groningen Utrecht Institute for Drug Exploration, The Netherlands. g.molema@med.rug.nl

Biochemical Pharmacology
|August 26, 1998
PubMed

Insights

Targeting tumor vasculature offers a promising strategy for cancer therapy. Identifying specific tumor endothelial cell targets is crucial for developing effective drug delivery and anti-angiogenesis treatments in clinical settings.

Area of Science:

  • Oncology
  • Vascular Biology
  • Drug Delivery

Background:

  • Tumor vascular endothelial cells are key targets for cancer therapy due to their role in solid tumor growth.
  • Blocking tumor blood supply has shown efficacy in preclinical models, highlighting the potential of vascular targeting.
  • Identifying tumor endothelium-specific targets is essential for clinical translation.

Purpose of the Study:

  • To review potential target epitopes on tumor endothelium for therapeutic strategies.
  • To discuss the role of angiogenesis-related molecules as targets.
  • To emphasize the need for further research and clinical evaluation.

Main Methods:

  • Review of recent studies on angiogenesis and tumor vasculature.
  • Identification of potential target epitopes including VEGF/VEGF-receptor, alpha(v) integrins, and Tie receptor tyrosine kinases.
  • Discussion of therapeutic strategies involving blockade of signaling cascades and targeted drug delivery.

Main Results:

  • Angiogenesis-related molecules are identified as potential targets on tumor endothelium.
  • These targets can be used for both inhibiting angiogenesis and delivering therapeutics.
  • Data on the efficacy of targeting these epitopes are currently limited.

Conclusions:

  • Tumor vascular targeting holds significant therapeutic potential for solid tumors.
  • Further sophisticated experimentation and detailed clinical evaluations in cancer patients are required.
  • Development of clinically effective tumor vascular targeted therapies necessitates a comprehensive understanding of these targets.

Related Concept Videos

Tumor Progression02:07

Tumor Progression

Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
Regulation of Angiogenesis and Blood Supply01:24

Regulation of Angiogenesis and Blood Supply

Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl hydroxylase and factor...
Tumor Progression02:07

Tumor Progression

Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...