Systematic Targeting of GD2-Positive Neuroblastoma Tumors With a Photooncolytic Phage Nanovector Platform
- PMID: 40799139
- DOI: 10.1002/advs.202415356
Systematic Targeting of GD2-Positive Neuroblastoma Tumors With a Photooncolytic Phage Nanovector Platform
Abstract
Disialoganglioside-GD2 is a key molecular target for Neuroblastoma (NB) immunotherapy based on the employment of GD2-targeting antibodies. However, about 50% of treated patients can experience tumor relapse due to limited immune-mediated cytotoxicity and poor antibody penetration into tumors. To address this problem, a tumor-penetrating photo-oncolytic phage nanovector platform is genetically and chemically developed that selectively targets GD2-expressing NB cells. The phage bioconjugates, functionalized with different photosensitizers, result in specific and selective oncolysis of GD2-positive NB cells upon light irradiation, without affecting GD2-negative ones. The photo-oncolytic phage vectors are shown to deeply penetrate into GD2-positive tumor spheroids in vitro, and to cross biological barriers in a zebrafish xenograft model, maintaining their ablation specificity upon irradiation. Finally, to overcome resistance from GD2 loss, often linked to poor prognosis, a CRISPRa strategy is introduced to reactivate GD2 expression in GD2-negative cells. The approach offers a minimally invasive and highly effective strategy, addressing unmet needs in NB therapy.
Keywords: CRISPRa; M13 bacteriophage biotherapeutics; neuroblastoma GD2; photodynamic therapy; zebrafish xenograft.
© 2025 The Author(s). Advanced Science published by Wiley‐VCH GmbH.
References
-
- a) K. K. Matthay, J. M. Maris, G. Schleiermacher, A. Nakagawara, C. L. Mackall, L. Diller, W. A. Weiss, Nat. Rev.: Dis. Prim. 2016, 2.
-
- b) E. Steliarova‐Foucher, M. Colombet, L. A. Ries, F. Moreno, A. Dolya, F. Bray, P. Hesseling, H. Y. Shin, C. A. Stiller, Lancet Oncol. 2017, 18, 719.
-
- a) N. A. Shendy, M. W. Zimmerman, B. J. Abraham, A. D. Durbin, Cell Rep. Med. 2022, 3, 100632;
-
- b) E. Rodriguez‐Fos, M. Planas‐Fèlix, M. Burkert, M. Puiggròs, J. Toedling, N. Thiessen, E. Blanc, A. Szymansky, F. Hertwig, N. Ishaque, D. Beule, D. Torrents, A. Eggert, R. P. Koche, R. F. Schwarz, K. Haase, J. H. Schulte, A. G. Henssen, Cell Genom. 2023, 3, 100402.
-
- L. Amoroso, R. Haupt, A. Garaventa, M. Ponzoni, Expert Opin. Invest. Drugs 2017, 26, 1281.