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A Next-generation Tissue Microarray ngTMA Protocol for Biomarker Studies
Published on: September 23, 2014
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Developing transcriptomic biomarkers for TAVO412 utilizing next generation sequencing analyses of preclinical tumor
Ying Jin1, Peng Chen1, Huajun Zhou2
1Research & Development Department, Tavotek Biotherapeutics, Suzhou, Jiangsu, China.
Frontiers in Immunology
|February 25, 2025
Summary
A new 21-gene biomarker predicts response to TAVO412, a multi-specific antibody targeting EGFR, c-Met, and VEGF-A. This biomarker enhances precision medicine for solid tumors by identifying patients likely to benefit from treatment.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- TAVO412 is a novel multi-specific antibody targeting EGFR, c-Met, and VEGF-A for solid tumor treatment.
- It inhibits tumor growth via multiple mechanisms, including blocking key signaling pathways and angiogenesis.
- TAVO412 has shown significant in vivo efficacy in diverse cancer models.
Purpose of the Study:
- To identify transcriptomic biomarkers for predicting anti-tumor response to TAVO412.
- To develop a predictive model for patient selection in precision medicine.
- To validate the biomarker's accuracy in preclinical cancer models.
Main Methods:
- Gene expression profiling of preclinical cancer models (CDX and PDX) was performed.
- A 21-gene signature was identified and correlated with TAVO412 efficacy.
- A Linear Prediction Score (LPS) model was developed to predict treatment response.
Main Results:
- The 21-gene biomarker accurately predicted TAVO412 efficacy in cell-derived xenograft (CDX) models with 78% accuracy.
- The predictive model demonstrated comparable accuracy when validated in patient-derived xenograft (PDX) models.
- The identified biomarker effectively distinguished between responders and non-responders.
Conclusions:
- A predictive transcriptomic biomarker for TAVO412 has been identified using next-generation sequencing.
- This biomarker facilitates precision medicine by optimizing patient selection for TAVO412 treatment.
- Leveraging preclinical data is crucial for developing effective predictive biomarkers.

