The objective of the NANT Pre-Clinical Testing Lab is to facilitate the generation of hypothesis driven clinical trials within the NANT, and to provide guidance to NANT clinical investigators in prioritizing potential new therapeutics for phase I trials, and rational use of combinatorial therapy. The following Specific Aims will aid in achieving our objective: 1) Maintain a master cell bank of well-characterized human neuroblastoma cell lines. 2) Maintain DIMSCAN instrument in working order for use for experiments dealing with chemotherapeutic agents and IL-6, soluble IL-6, anti-IL-6 mAb CNTO 328, the STAT3 inhibitor stattic (Project 1), NK cells, anti-IGF1R mAb (Project 2), PI3K inhibitors, Aurora Kinase A type I and II inhibitors (Project 3), and drugs and drug combinations suggested by NANT investigators (Project 4). 3) Develop a """"""""microenvironment"""""""" model by co-culturing tumor cells with representative microenvironment cells (e.g., monocytes, mesenchymal cells) to test by DIMSCAN therapies targeting tumor cell - microenvironment cell interaction (e.g., anti-IL-6 mAb;lenalidomide) (collaboration with Projects 1 and 2). 4) Conduct in vitro cytotoxicity assays using DIMSCAN and provide assistance to project investigators in designing experiments, instructing in use of DIMSCAN and analyzing of data. 5) Assess anti-tumor activity of selected combinations using subcutaneous and disseminated disease xenograft models of multi-drug-resistant human neuroblastomas in immunocompromised mice by 1) determining maximal tolerated dose (MTD) of selected drug combinations;2) assessing pharmacodynamic evidence of drug activity at the MTD in tumor xenograft tissue;3) assessing the effect of the most active combinations on tumor growth delay and mouse survival.

Public Health Relevance

Robust pre-clinical data generated through vigorous in vitro and in vivo testing will facilitate patient accrual to phase I trials, as patients most likely will enter trials with convincing experimental support. In addition, the pre-clinical modeling is crucial in establishing optimal scheduling for combination therapies, and synergistic and additive effects.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Research Program Projects (P01)
Project #
5P01CA081403-14
Application #
8506990
Study Section
Special Emphasis Panel (ZCA1-GRB-S)
Project Start
Project End
Budget Start
2013-06-01
Budget End
2014-05-31
Support Year
14
Fiscal Year
2013
Total Cost
$210,182
Indirect Cost
$43,132
Name
Children's Hospital of Los Angeles
Department
Type
DUNS #
052277936
City
Los Angeles
State
CA
Country
United States
Zip Code
90027
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Pinto, Navin; DuBois, Steven G; Marachelian, Araz et al. (2018) Phase I study of vorinostat in combination with isotretinoin in patients with refractory/recurrent neuroblastoma: A new approaches to Neuroblastoma Therapy (NANT) trial. Pediatr Blood Cancer 65:e27023
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Erdreich-Epstein, Anat; Singh, Alok R; Joshi, Shweta et al. (2017) Association of high microvessel ?v?3 and low PTEN with poor outcome in stage 3 neuroblastoma: rationale for using first in class dual PI3K/BRD4 inhibitor, SF1126. Oncotarget 8:52193-52210
Marachelian, Araz; Villablanca, Judith G; Liu, Cathy W et al. (2017) Expression of Five Neuroblastoma Genes in Bone Marrow or Blood of Patients with Relapsed/Refractory Neuroblastoma Provides a New Biomarker for Disease and Prognosis. Clin Cancer Res 23:5374-5383
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