|
|
|||||||||||||||
|
Buscar | Enviar | Ayuda | Servicio de Bibliotecas | Sobre el DDD | Català English Español | |||||||||
| Página principal > Artículos > Artículos publicados > A diphtheria toxin-based nanoparticle achieves specific cytotoxic effect on CXCR4+ lymphoma cells without toxicity in immunocompromised and immunocompetent mice |
| Fecha: | 2022 |
| Resumen: | High rates of relapsed and refractory diffuse large B-cell lymphoma (DLBCL) patients and life-threatening side effects associated with immunochemotherapy make an urgent need to develop new therapies for DLBCL patients. Immunotoxins seem very potent anticancer therapies but their use is limited because of their high toxicity. Accordingly, the self-assembling polypeptidic nanoparticle, T22-DITOX-H6, incorporating the diphtheria toxin and targeted to CXCR4 receptor, which is overexpressed in DLBCL cells, could offer a new strategy to selectively eliminate CXCR4 DLBCL cells without adverse effects. In these terms, our work demonstrated that T22-DITOX-H6 showed high specific cytotoxicity towards CXCR4 DLBCL cells at the low nanomolar range, which was dependent on caspase-3 cleavage, PARP activation and an increase of cells in early/late apoptosis. Repeated nanoparticle administration induced antineoplastic effect, in vivo and ex vivo, in a disseminated immunocompromised mouse model generated by intravenous injection of human luminescent CXCR4 DLBCL cells. Moreover, T22-DITOX-H6 inhibited tumor growth in a subcutaneous immunocompetent mouse model bearing mouse CXCR4 lymphoma cells in the absence of alterations in the hemogram, liver or kidney injury markers or on-target or off-target organ histology. Thus, T22-DITOX-H6 demonstrates a selective cytotoxicity towards CXCR4 DLBCL cells without the induction of toxicity in non-lymphoma infiltrated organs nor hematologic toxicity. |
| Ayudas: | Instituto de Salud Carlos III PI21/00150 Instituto de Salud Carlos III PI18/00650 Instituto de Salud Carlos III PI20/01621 Instituto de Salud Carlos III PI17/01246 Ministerio de Economía y Competitividad RD16/0011/0028 Instituto de Salud Carlos III PI20/00400 Agencia Estatal de Investigación BIO2016-76063-R Agencia Estatal de Investigación PID2019-105416RB Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1395 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-865 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-229 Instituto de Salud Carlos III CP19/00028 Instituto de Salud Carlos III FI18/00268 |
| Nota: | Altres ajuts: CIBER-BBN CB06/01/1031; La Marató TV3 201 941-30-31-32; |
| Derechos: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. |
| Lengua: | Anglès |
| Documento: | Article ; recerca ; Versió publicada |
| Materia: | Targeted-drug delivery ; Nanoparticle ; Diphtheria toxin ; CXCR4 receptor ; DLBCL ; Multivalency |
| Publicado en: | Biomedicine & pharmacotherapy, Vol. 150 (june 2022) , p. 112940, ISSN 1950-6007 |
12 p, 7.4 MB |