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Updated: Jun 26, 2025

Analyzing Tumor and Tissue Distribution of Target Antigen Specific Therapeutic Antibody
Published on: May 16, 2020
Expression of Potential Antibody-Drug Conjugate Targets in Cervical Cancer
Michael R Mallmann1,2,3,4, Sina Tamir4, Katharina Alfter4
1Faculty of Medicine, University of Cologne, 50931 Cologne, Germany.
Abstract:
(1) Background: There is a huge unmet clinical need for novel treatment strategies in advanced and recurrent cervical cancer. Several cell membrane-bound molecules are up-regulated in cancer cells as compared to normal tissue and have revived interest with the introduction of antibody-drug conjugates (ADCs). (2) Methods: In this study, we characterize the expression of 10 potential ADC targets, TROP2, mesotheline, CEACAM5, DLL3, folate receptor alpha, guanylatcyclase, glycoprotein NMB, CD56, CD70 and CD138, on the gene expression level. Of these, the three ADC targets TROP2, CEACAM5 and CD138 were further analyzed on the protein level. (3) Results: TROP2 shows expression in 98.5% (66/67) of cervical cancer samples. CEACAM5 shows a stable gene expression profile and overall, 68.7% (46/67) of cervical cancer samples are CEACAM-positive with 34.3% (23/67) of cervical cancer samples showing at least moderate or high expression. Overall, 73.1% (49/67) of cervical cancer samples are CD138-positive with 38.8% (26/67) of cervical cancer samples showing at least moderate or high expression. (4) Conclusions: TROP2, CEACAM5 or CD138 do seem suitable for further clinical research and the data presented here might be used to guide further clinical trials with ADCs in advanced and recurrent cervical cancer patients.
Insights
This study identifies TROP2, CEACAM5, and CD138 as promising targets for antibody-drug conjugates (ADCs) in advanced cervical cancer. These targets show high expression, supporting their use in future clinical trials for recurrent cervical cancer.
Area of Science:
- Oncology
- Molecular Biology
- Immunotherapy
Background:
- Advanced and recurrent cervical cancer present a significant unmet clinical need for new treatments.
- Antibody-drug conjugates (ADCs) are emerging as a promising therapeutic strategy, targeting cancer-specific cell membrane-bound molecules.
- Identifying novel ADC targets is crucial for improving treatment outcomes.
Purpose of the Study:
- To evaluate the expression of ten potential antibody-drug conjugate (ADC) targets at the gene and protein levels in cervical cancer.
- To identify suitable ADC targets for clinical research in advanced and recurrent cervical cancer.
- To provide data to guide the development of future ADC-based therapies.
Main Methods:
- Gene expression analysis was performed for ten potential ADC targets: TROP2, mesotheline, CEACAM5, DLL3, folate receptor alpha, guanylatcyclase, glycoprotein NMB, CD56, CD70, and CD138.
- Protein expression analysis was conducted for the top three identified ADC targets: TROP2, CEACAM5, and CD138.
- Cervical cancer samples were analyzed to quantify target expression levels.
Main Results:
- TROP2 demonstrated high expression in 98.5% of cervical cancer samples.
- CEACAM5 was found to be expressed in 68.7% of samples, with 34.3% showing moderate to high expression.
- CD138 was positive in 73.1% of samples, with 38.8% exhibiting moderate to high expression.
Conclusions:
- TROP2, CEACAM5, and CD138 are identified as suitable targets for antibody-drug conjugate (ADC) development in cervical cancer.
- The high expression rates of these targets support their further investigation in clinical trials.
- This research provides valuable data to inform the design of future ADC therapies for patients with advanced and recurrent cervical cancer.
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