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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
Summary
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.
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.
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