EGFR-Targeted ImmunoPET of UMUC3 Orthotopic Bladder Tumors.
EGFR-Targeted ImmunoPET of UMUC3 Orthotopic Bladder Tumors.
复制标题
DOI:
10.1007/s11307-022-01708-2
复制
发表时间:
2022-08
影响因子:
3.1
通讯作者:
中科院分区:
文献类型:
--
作者:
Immuno Positron Emission Tomography (immunoPET) combines the specificity of an antibody with the sensitivity of PET to image dysregulated pathways in cancer. This study examines the performance of immunoPET using the radioimmunoconjugate [89Zr]Zr-DFO-Panitumumab to detect epidermal growth factor receptor (EGFR) expression in an orthotopic model of bladder cancer (BCa). Expression and quantification of EGFR receptors were confirmed in four different BCa cell lines. Binding assays validated [89Zr]Zr-DFO-Panitumumab specificity for EGFR-expressing UMUC3 BCa cells. Subcutaneous and orthotopic UMUC3 xenografts were then used for PET imaging and ex vivo biodistribution of the radioimmunoconjugate. Control cohorts included non-tumor mice, 89Zr-labeled nonspecific IgG, and blocking experiments. [89Zr]Zr-DFO-Panitumumab binds specifically to EGFR-expressing UMUC3 cells with a Bmax value of 5.9 × 104 EGFRs/cell in vitro. ImmunoPET/CT images show localization of the antibody in subcutaneous UMUC3 xenografts and murine bladder tumors. In the orthotopic model, the immunoPET signal correlates with the respective tumor volume. Ex vivo biodistribution analysis further confirmed imaging results. The preclinical data presents a proof of concept for utilizing EGFR-targeted immunoPET to image BCa with altered EGFR protein levels.
登录
查看更多内容
影响因子:
158.5
作者:
Lynch, TJ;Bell, DW;Haber, DA
通讯作者:
Haber, DA
DOI:
10.2967/jnumed.111.094169
发表时间:
2012-01
期刊:
Journal of nuclear medicine : official publication, Society of Nuclear Medicine
影响因子:
--
作者:
Nayak TK;Garmestani K;Milenic DE;Brechbiel MW
通讯作者:
Brechbiel MW
影响因子:
3.1
作者:
Escorcia FE;Steckler JM;Abdel-Atti D;Price EW;Carlin SD;Scholz WW;Lewis JS;Houghton JL
通讯作者:
Houghton JL
DOI:
10.1007/s00259-018-4003-6
发表时间:
2018-07-01
影响因子:
9.1
作者:
Autenrieth, Michael E.;Seidl, Christof;Morgenstern, Alfred
通讯作者:
Morgenstern, Alfred
影响因子:
--
作者:
Grasso, Marco
通讯作者:
Grasso, Marco