Related Experiment Video
Updated: May 23, 2026

Quantification of Tumor Cell Adhesion in Lymph Node Cryosections
Published on: February 9, 2020
Integrins and their extracellular matrix ligands in lymphangiogenesis and lymph node metastasis
Jie Chen1, J Steven Alexander, A Wayne Orr
1Department of Pathology, LSU Health Sciences Center, Shreveport, 1501 Kings Highway, Shreveport, LA 71130, USA.
Abstract:
In the 1970s, the late Judah Folkman postulated that tumors grow proportionately to their blood supply and that tumor angiogenesis removed this limitation promoting growth and metastasis. Work over the past 40 years, varying from molecular examination to clinical trials, verified this hypothesis and identified a host of therapeutic targets to limit tumor angiogenesis, including the integrin family of extracellular matrix receptors. However, the propensity for some tumors to spread through lymphatics suggests that lymphangiogenesis plays a similarly important role. Lymphangiogenesis inhibitors reduce lymph node metastasis, the leading indicator of poor prognosis, whereas inducing lymphangiogenesis promotes lymph node metastasis even in cancers not prone to lymphatic dissemination. Recent works highlight a role for integrins in lymphangiogenesis and suggest that integrin inhibitors may serve as therapeutic targets to limit lymphangiogenesis and lymph node metastasis. This review discusses the current literature on integrin-matrix interactions in lymphatic vessel development and lymphangiogenesis and highlights our current knowledge on how specific integrins regulate tumor lymphangiogenesis.
Insights
Integrins are key to tumor lymphangiogenesis and lymph node metastasis. Targeting integrins may inhibit cancer spread, offering new therapeutic strategies for patients with advanced cancers.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Tumor growth and metastasis are linked to blood vessel formation (angiogenesis).
- Lymphatic vessel formation (lymphangiogenesis) also plays a critical role in cancer spread to lymph nodes.
- Integrins, receptors for extracellular matrix, are implicated in both angiogenesis and lymphangiogenesis.
Purpose of the Study:
- To review the role of integrin-matrix interactions in lymphatic vessel development and lymphangiogenesis.
- To highlight integrins as potential therapeutic targets for inhibiting tumor lymphangiogenesis and metastasis.
Main Methods:
- Literature review of studies on integrins, lymphangiogenesis, and cancer metastasis.
- Analysis of molecular mechanisms underlying integrin function in lymphatic endothelial cells.
- Examination of preclinical and clinical data on integrin inhibitors in cancer therapy.
Main Results:
- Integrins are crucial regulators of lymphatic vessel development and lymphangiogenesis.
- Targeting specific integrins can inhibit lymph node metastasis.
- Inducing lymphangiogenesis promotes cancer spread, while inhibition reduces it.
Conclusions:
- Integrins are vital targets for developing therapies against cancer lymph node metastasis.
- Integrin inhibitors hold promise for limiting tumor spread and improving patient prognosis.
Related Concept Videos
Integrins
Some ECM proteins assemble into a basement membrane to which the remaining components adhere. Proteoglycans typically form the bulk of the ECM while fibrous proteins, like collagen,...
Intracellular Signaling Affects Focal Adhesions
Some...
Activation of Integrins
In "outside-in signaling," external factors in the extracellular space bind to exposed ligand binding sites on integrins. This causes the inactive protein to undergo a conformational change to become active. Integrins are often clustered on the cell membrane. Repetitive and regularly spaced ligand binding events provide an effective stimulus.
Selectins
Adherens Junctions
Adherens Junctions are Dynamic
The endothelial cells...
Role of Ephrin-Eph Signalling in Intestinal Stem Cell Renewal

