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Related Concept Videos

Integrins01:10

Integrins

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Animal and protozoan cells do not have cell walls to help maintain shape and provide structural stability. Instead, these eukaryotic cells secrete a sticky mass of carbohydrates and proteins into the spaces between adjacent cells. This network of proteins and molecules is called an extracellular matrix or ECM.
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,...
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Activation of Integrins01:15

Activation of Integrins

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Integrins bind ligands and transmit information from outside the cell to inside or vice-versa through an "outside-in signaling" or "inside-out signaling."
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...
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Tumor Immunotherapy01:27

Tumor Immunotherapy

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Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
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Targeted Cancer Therapies02:57

Targeted Cancer Therapies

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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.
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Tumor Progression02:07

Tumor Progression

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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.
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The Tumor Microenvironment02:17

The Tumor Microenvironment

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Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
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Related Experiment Video

Updated: Feb 10, 2026

Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo
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Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo

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Integrin α6 Targeted Tumor Theranostics.

Xinling Li1,2, Kaili Xie1, Qiaoli Wang1

  • 1State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060 P. R. China.

Phenomics (Cham, Switzerland)
|February 9, 2026
PubMed
Summary
This summary is machine-generated.

Integrin alpha6 (α6) probes show promise for cancer theranostics. An alpha6-targeted SPECT probe is safe and effective for breast cancer detection, advancing tumor imaging and therapy.

Keywords:
BiomarkerIntegrin α6Molecular ImagingTargeted TherapyTheranostics

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Area of Science:

  • Oncology
  • Molecular Imaging
  • Biomarkers

Background:

  • Integrins are crucial for cell adhesion and signaling, with aberrant activation driving cancer progression and therapeutic resistance.
  • Integrin alpha-v beta-3 (αvβ3) is well-studied, but integrin alpha6 (α6) subunits (α6β1, α6β4) are increasingly recognized as vital cancer biomarkers.
  • Overexpression of integrin α6β1 and α6β4 is linked to poor prognosis in various cancers.

Purpose of the Study:

  • To review recent advancements in integrin α6-targeted tumor theranostics.
  • To highlight the development and application of novel molecular imaging probes and therapeutic strategies targeting integrin α6.

Main Methods:

  • Development of diverse integrin α6-targeted probes for molecular imaging, including SPECT, PET, MRI, and NIRF.
  • Clinical evaluation of an integrin α6-targeted SPECT probe in a first-in-human breast cancer pilot study.
  • Design and implementation of integrin α6-targeted therapeutic strategies.

Main Results:

  • An integrin α6-targeted SPECT probe demonstrated safety and efficacy in detecting breast cancer.
  • Various imaging probes (SPECT, PET, MRI, NIRF) have been successfully developed for integrin α6 visualization.
  • Integrin α6-targeted therapies are emerging as a promising approach for cancer treatment.

Conclusions:

  • Integrin α6 represents a significant theranostic target for cancer molecular imaging and therapy.
  • Integrin α6-targeted probes offer a viable strategy for early cancer detection and personalized treatment.
  • Continued research in integrin α6 theranostics holds potential for improved cancer patient outcomes.