» Articles » PMID: 33081407

Dual Targeting of Cancer Cells with DARPin-Based Toxins for Overcoming Tumor Escape

Overview
Journal Cancers (Basel)
Publisher MDPI
Specialty Oncology
Date 2020 Oct 21
PMID 33081407
Citations 22
Authors
Affiliations
Soon will be listed here.
Abstract

We report here a combined anti-cancer therapy directed toward HER2 and EpCAM, common tumor-associated antigens of breast cancer cells. The combined therapeutic effect is achieved owing to two highly toxic proteins-a low immunogenic variant of exotoxin A and ribonuclease Barnase from . The delivery of toxins to cancer cells was carried out by targeting designed ankyrin repeat proteins (DARPins). We have shown that both target agents efficiently accumulate in the tumor. Simultaneous treatment of breast carcinoma-bearing mice with anti-EpCAM fusion toxin based on LoPE and HER2-specific liposomes loaded with Barnase leads to concurrent elimination of primary tumor and metastases. Monotherapy with anti-HER2- or anti-EpCAM-toxins did not produce a comparable effect on metastases. The proposed approach can be considered as a promising strategy for significant improvement of cancer therapy.

Citing Articles

Niosomes in cancer treatment: A focus on curcumin encapsulation.

Bashkeran T, Kamaruddin A, Ngo T, Suda K, Umakoshi H, Watanabe N Heliyon. 2023; 9(8):e18710.

PMID: 37593605 PMC: 10428065. DOI: 10.1016/j.heliyon.2023.e18710.


Targeted Two-Step Delivery of Oncotheranostic Nano-PLGA for HER2-Positive Tumor Imaging and Therapy In Vivo: Improved Effectiveness Compared to One-Step Strategy.

Shipunova V, Komedchikova E, Kotelnikova P, Nikitin M, Deyev S Pharmaceutics. 2023; 15(3).

PMID: 36986694 PMC: 10053351. DOI: 10.3390/pharmaceutics15030833.


Advanced Situation with Recombinant Toxins: Diversity, Production and Application Purposes.

Efremenko E, Aslanli A, Lyagin I Int J Mol Sci. 2023; 24(5).

PMID: 36902061 PMC: 10003545. DOI: 10.3390/ijms24054630.


Feasibility of Co-Targeting HER3 and EpCAM Using Seribantumab and DARPin-Toxin Fusion in a Pancreatic Cancer Xenograft Model.

Xu T, Schulga A, Konovalova E, Rinne S, Zhang H, Vorontsova O Int J Mol Sci. 2023; 24(3).

PMID: 36769161 PMC: 9917732. DOI: 10.3390/ijms24032838.


Genetically Encoded Self-Assembling Protein Nanoparticles for the Targeted Delivery In Vitro and In Vivo.

Obozina A, Komedchikova E, Kolesnikova O, Iureva A, Kovalenko V, Zavalko F Pharmaceutics. 2023; 15(1).

PMID: 36678860 PMC: 9861179. DOI: 10.3390/pharmaceutics15010231.


References
1.
Spizzo G, Went P, Dirnhofer S, Obrist P, Moch H, Baeuerle P . Overexpression of epithelial cell adhesion molecule (Ep-CAM) is an independent prognostic marker for reduced survival of patients with epithelial ovarian cancer. Gynecol Oncol. 2006; 103(2):483-8. DOI: 10.1016/j.ygyno.2006.03.035. View

2.
Jost C, Schilling J, Tamaskovic R, Schwill M, Honegger A, Pluckthun A . Structural basis for eliciting a cytotoxic effect in HER2-overexpressing cancer cells via binding to the extracellular domain of HER2. Structure. 2013; 21(11):1979-91. DOI: 10.1016/j.str.2013.08.020. View

3.
Hartley R, Rogerson Jr D . Production and purification of the extracellular ribonuclease of Bacillus amyloliquefaciens (barnase) and its intracellular inhibitor (barstar). I. Barnase. Prep Biochem. 1972; 2(3):229-42. DOI: 10.1080/00327487208061473. View

4.
Gazzah A, Boni V, Soria J, Calles A, Even C, Doger B . A phase 1b study of afatinib in combination with standard-dose cetuximab in patients with advanced solid tumours. Eur J Cancer. 2018; 104:1-8. DOI: 10.1016/j.ejca.2018.07.011. View

5.
Liu W, Onda M, Lee B, Kreitman R, Hassan R, Xiang L . Recombinant immunotoxin engineered for low immunogenicity and antigenicity by identifying and silencing human B-cell epitopes. Proc Natl Acad Sci U S A. 2012; 109(29):11782-7. PMC: 3406843. DOI: 10.1073/pnas.1209292109. View