Research Highlight


On the left, a post-operative x-ray image of radioactive seeds placed during brachytherapy is shown. On the right, lab-synthesized “smart” INCeRT spacers containing the chemotoxic agent, Docetaxel, are displayed. The spacers provide clinicians with spatial and temporal guidance in order to approximately separate the radioactive seeds from one another and avoid ‘hot spots.’

Development of Smart INCeRT Brachytherapy Spacers via PLGA and Docetaxel for Combined Chemo-Radiation Therapies in Prostate Cancer

Prostate cancer (PCa) is the second leading cause of cancer related deaths in men with 26,730 deaths and 161,360 new cases estimated in the US in 2017. Treatment options are scarce and often leave survivors with reduced quality of life due to off-target side effects. Radiation treatment in the form of permanent brachytherapy calls for the deposition of radioactive seeds in the prostate gland that release radiation overtime. Standard brachytherapy utilizes plastic inert spacers to obtain spatial guidance to place and separate radioactive seeds. Later stage PCa therapies include highly toxic and aggressive treatments such as systemic chemotherapy to control local progression and spreading of metastasis. Docetaxel (DTX), a chemotoxic agent via mitotic inhibition, is the primary drug used for chemotherapy treatments of PCa. In an effort to combine radiation therapy and chemotherapy to achieve targeted drug delivery and minimize toxicity levels, biodegradable “smart” spacers have been synthesized. These spacers are fabricated with a docetaxel loaded Poly(lactic-co-glycolic) acid (PLGA) cylindrical implant for intratumoral injection during brachytherapy procedures. Previous research has demonstrated the success of such spacers created from a mixture of PLGA, DTX and a solvent. In this project, methods to create solvent-free “smart” spacers are underway and require rheological and calorimetric analysis of the materials. Learned characteristics from these tests will enable us to successfully hot-melt extrude DTX loaded biocompatible spacers to be used in conjunction with radioactive seeds. Further research for this project regarding in vitro experiments and in vivo experiments in rodent models will help determine the synergistic affects of the combined chemo-radiation therapy (CRT) for tumors. The associated benefits of CRT compared to monotherapy require synchronization of the two modalities to achieve maximum benefit. The need to investigate novel PCa therapeutic strategies is immediate and will provide patients with higher survival rates, improve targeted drug delivery and avoid systemic toxicity.

 

 

Trainee Research

CaNCURE provides trainees with a 6-month hands-on research experience and one-on-one mentoring by leading researchers in cancer nanomedicine.   Projects performed by current and past participants include:

The Nano-plasmonic Exosome (nPLEX) Assay for Pancreatic Ductal Adenocarcinoma Diagnosis and Prognosis

Identifying genomic and compound dependencies in undifferentiated sarcomas

PDT and PIT with Chemotherapy for Treatment of 3D Ovarian Cancer Nodules Under Flow and Static Conditions

Development of Smart INCeRT Brachytherapy Spacers via PLGA and Docetaxel for Combined Chemo-Radiation Therapies in Prostate Cancer

In vivo investigation of the pathogenesis and development of pituitary adenomas in relation to the loss of MEG3 expression

Iron-chelating PEG-like nanoprobes as therapeutic and 89Zr/PET imaging agents

Development of PSMA-targeting nanoparticles for positron emitting tomography imaging in prostate cancer using animal models

Nano-plasmonic exosome (nPLEX) assays for exosome analysis and antibody validation

miRNA analysis in mouse model of metastatic breast cancer. (Proj 2) The inhibition of PD-L1 on a Pan02 cell line w/ siRNA-nanodrug & gemcitabine treatment

Erythropoietin improves antitumor immune response through reversal of the hypoxic tumor microenvironment

Assessing sufficiency of the Tip60/p400 complex in inducing transcription of Merkel Cell Polyomavirus Small T antigen target genes.

Targeted Delivery of Liposomes using PARP Inhibitors to Treat Non-Small Cell Lung Cancer

Monocyte Subtype Determination by Labeling with Feraheme Nanoparticles

Use of CT Texture Analysis for Characterization and Prognostication of Incidental Adnexal Lesions

Investigating the use of iron chelator deferoxamine (DFO)-bearing PEG-like nanoprobes as a multifunctional agent for cancer therapy and PET imaging

Identification of novel therapeutic targets of the Notch1 signaling pathway

Analysis of DREAM and E2F1 Competition for Cell Cycle Promoters during G1.

Discovering the Genetic Mechanism of Enhanced Metastatic Colonization in SMAD4 Mutant Tumors

In Vivo Treatment of Established HGSOC Line Using Novel Therapy

Development of a Point of Care Assay for Detecting High Risk HPV in Resource Limited Settings

Assessment of atherosclerotic changes following neoadjuvant therapy using ferumoxytol as contrast imaging agent

Tracking pancreatic adenocarcinoma response to treatment using targeted, multi-modal nanoparticles

Longitudinal assessment of tumor heterogeneity during immunotherapy for metastatic melanoma

Implementation of novel MR-based attenuation correction in PET/MR pelvic scans

Biological mechanisms of gold nanoparticle-enhanced radiation therapy of prostate cancer

Soleil Doggett (Biology, '16) talks to her fellow peers about her research on oxygenating tumors to stimulate the anti-tumor immune response.

 

Trainee e-portfolios

Photo credit: Tom Kates Photography

While on co-op, trainees document their research in an e-portfolio.  This gives trainees the opportunity to provide regular updates on their research progress, reflect on training they are receiving, and explain how their research fits within the field of cancer nanomedicine.  These research e-portfolios can be accessed through individual trainee profiles.  The complete collection may be found here.

 

Presentation at CaNCURE Nanomedicine Day

At the completion of their co-op, trainees are provided with the opportunity to present their research to a wider audience.  For our June CaNCURE Nanomedicine Day, trainees prepare interactive, digital posters to display on electronic poster boards.  Over 100 faculty, students, and researchers attend this annual event!

Check out the news article about our first CaNCURE Day!

Trainee Publications

Our Trainees have published 22 peer-reviewed since January 2015.  A full list of Trainee publications is found below.

  1. Patrick Sheedy, Zdravka Medarova. The fundamental role of miR-10b in metastatic cancer. Am J Cancer Res 2018;8(9):1674-1688. Link
  2. Chen X, Ling X, Zhao L, Xiong F, Hollett G, Kang Y, Barrett A, Wu J. “Biomimetic Shells Endow Sub-50 nm Nanoparticles with Ultrahigh Paclitaxel Payloads for Specific and Robust Chemotherapy.”  ACS Appl Mater Interfaces. 2018 Sep 25. doi: 10.1021/acsami.8b11571. PMID: 30203956  Link
  3. Hedgire S, Krebill C, Wojtkiewicz GR, Oliveira I, Ghoshhajra BB, Hoffmann U, Harisinghani MG. “Ultrasmall superparamagnetic iron oxide nanoparticle uptake as noninvasive marker of aortic wall inflammation on MRI: proof of concept study.”   Br J Radiol. 2018 Sep 12:20180461. doi: 10.1259/bjr.20180461. PMID: 30160173  Link
  4. Application of the BLADE Sequence in Upper Abdominal MR Imaging. Krebill C.  Radiol Technol. 2018 May;89(5):495-497. PMID:29793909 Link
  5. Torrado-Carvajal A, Vera-Olmos J, Izquierdo-Garcia D1, Catalano OA, Morales MA, Margolin J, Soricelli A, Salvatore M, Malpica N, Catana C1. Dixon-VIBE Deep Learning (DIVIDE) Pseudo-CT Synthesis for Pelvis PET/MR Attenuation Correction. J Nucl Med. 2018 Aug 30. pii: jnumed.118.209288. doi: 10.2967/jnumed.118.209288. PMID: 30166357  Link
  6. Xiaoyuan Ji, Jie Wang, Lin Mei, Wei Tao, Austin Barrett, Zhiguo Su, Shaomin Wang. Guanghui Ma, Jinjun Shi, Songping Zhang. Artificial Photosynthesis: Porphyrin/SiO2 /Cp*Rh(bpy)Cl Hybrid Nanoparticles Mimicking Chloroplast with Enhanced Electronic Energy Transfer for Biocatalyzed Artificial Photosynthesis. Advanced Functional Materials. Link
  7. Yang KS, Im H, Hong S, Pergolini I, Del Castillo AF, Wang R, Clardy S, Huang CH, Craig Pille, Ferrone, Yang R, Castro CM, Lee H, Del Castillo CF, Weissleder R. Multiparametric plasma EV profiling facilitates diagnosis of pancreatic malignancy. Sci Transl Med. 2017; 9(391): eaal3226. PMC5846089
  8. Zhu X, Ji X, Kong N, Chen Y, Mahmoudi M, Xu X, Ding L, Tao W, Cai T, Li Y, Gan T, Austin Barrett, Bharwani Z, Chen H, Farokhzad OC. Intracellular Mechanistic Understanding of 2D MoS2 Nanosheets for Anti-Exocytosis-Enhanced Synergistic Cancer Therapy.  ACS Nano. 2018 Mar 27;12(3):2922-2938. PMC6097229
  9. Miller MA1, Kim E, Cuccarese MF, Alec Plotkin, Prytyskach M, Kohler RH, Pittet MJ, Weissleder R. “Near infrared imaging of Mer tyrosine kinase (MERTK) using MERi-SiR reveals tumor associated macrophage uptake in metastatic disease.” Chem Commun. 2017 Dec 19;54(1):42-45. PMC5736449
  10. Ding L, Zhu X, Wang Y, Shi B, Ling X, Chen H, Nan W, Austin Barrett, Guo Z, Tao W, Wu J, Shi X. “Intracellular Fate of Nanoparticles with Polydopamine Surface Engineering and a Novel Strategy for Exocytosis-Inhibiting, Lysosome Impairment-Based Cancer Therapy”. Nano Lett. 2017 Nov 8;17(11):6790-6801.  PMC6071871
  11. Yoo B, Ann-Marie, Billig, Medarova Z. “Guidelines for Rational Cancer Therapeutics. Frontiers in Oncology Journal”. Front Oncol. 2017 Dec 12;7:310. PMC5732930
  12. Gharagouzloo C, Timms L, Qiao J, Fang Z, Joseph Nneji, Pandya A, Kulkarni P, van de Ven AL, Ferris C, Sridhar S. “Neural circuits and brain function: New insights using quantitative vascular mapping of the rat.” Neuroimage, 2017. 16C:24-33  PMC5824692
  13. Gharagouzloo C, Timms L, Qiao J, Fang Z, Joseph Nneji, Pandya A, Kulkarni P, van de Ven AL, Ferris C, Sridhar S.   “Dataset on a 173 region awake resting state quantitative cerebral blood volume rat brain atlas and regional changes to cerebral blood volume under isoflurane anesthetization and CO2 challenge”. Data in Brief, 2018. 17:393-396.  Link
  14. Qin L, Li A, Qu J, Reinshagen K, Li X, Cheng S, Annie Bryant, Young GS. Normalization of ADC does not improve correlation with overall survival in patients with high-grade glioma (HGG). J Neurooncol. 2018 Apr;137(2):313-319.   PMC6071871
  15. Belz J, Kumar R, Baldwin P, Noelle Castilla Ojo, Leal AS, Royce DB, Di Zhang D, van de Ven AL, Liby K, Sridhar S. “Sustained-release Talazoparib implants for localized treatment of BRCA1-deficient breast cancer”. Theranostics, 7(17): 4340-4349.  PMC5695017
  16. Qin L, Li X, Amanda Stroiney, Qu J, Helgager J, Reardon DA, Young GS. “Advanced MRI assessment to predict benefit of anti-programmed cell death 1 protein immunotherapy response in patients with recurrent glioblastoma.” 2017 Feb;59(2):135-145.  PMC6097616
  17. Jodi Belz, Noelle Castilla Ojo,Srinivas Sridhar, Rajiv Kumar.  Radiosensitizing silica nanoparticles encapsulating docetaxel for treatment of prostate cancer, In Cancer Nanotechnology. Reema Zeineldin (Ed).  Series: Methods in Molecular Biology. Springer Press. Methods Mol Biol. 2017; 1530:403-409. PMC5531609
  18. Christian Berrios, Megha Padi, Mark A. Keibler, Donglim Esther Park, Vadim Molla, Gregory Stephanopoulos, John Quackenbush, James A. DeCaprio. “Merkel cell polyomavirus small T antigen promotes pro-glycolytic metabolic perturbations required for transformation”. 2016 Nov 23;12(11):e1006020.   PMC5120958
  19. Song C, Liu Y, Rachel Fontana, Makrigiorgos A, Mamon H, Kulke MH, G. Mike Makrigiorgos. “Elimination of unaltered DNA in mixed clinical samples via nuclease-assisted minor-allele enrichment”.  2016 Nov 2;44(19):e146. PMC5100565
  20. Andrew L. Hong, Yuen-Yi Tseng, Glenn S. Cowley, Oliver Jonas, Jaime H. Cheah, Bryan D. Kynnap, Mihir B. Doshi, Coyin Oh, Stephanie C. Meyer, Alanna J. Church, Shubhroz Gill, Craig M. Bielski, Paula Keskula, Alma Imamovic, Sara Howell, Gregory V. Kryukov, Paul A. Clemons, Aviad Tsherniak, Francisca Vazquez, Brian D. Crompton, Alykhan F. Shamji, Carlos Rodriguez-Galindo, Katherine A. Janeway, Charles W. M. Roberts, Kimberly Stegmaier, Paul van Hummelen,
Michael J. Cima, Robert S. Langer, Levi A. Garraway, Stuart L. Schreiber, David E. Root,
William C. Hahn, & Jesse S. Boehm. “Integrated genetic and pharmacologic interrogation of rare cancers”. Nat Commun. 2016 Jun 22;7:11987.  PMC4917959
  21. Wang P, Yoo B, Sherman S, Mukherjee P, Ross A, Pantazopoulos P, Petkova V, Farrar C, Medarova Z, Moore A. “Predictive imaging of chemotherapeutic response in a transgenic mouse model of pancreatic cancer.” Int J Cancer. 2016 Aug 1;139(3):712-8. PMCID: PMC4925171
  22. Nazila Kamaly, Gabrielle Fredman, Jhalique J. Fojas, Manikandan Subramanian, Won II Choi, Katherine Zepeda, Cristian Vilos, Mikyung Yu, Suresh Gadde, Jun Wu, Jaclyn Milton, Renata Leitao, Livia Rosa, Moaraj Hasan, Huayi Gao, Vance Nguyen, Jordan Harris, Ira Tabas, and Omid C. Farokhzad. “Interleukin-10 Targeted Nanotherapeutics Developed with a Microfluidic Chip Enhance Resolution of Inflammation in Advanced Atherosclerosis”. ACS Nano. 2016 May 24;10(5):5280-92. PMC5199136