Macrophages as drug delivery vehicles for photochemical internalization (Conference Presentation)

Steen J. Madsen; Jonathan Gonzalez; Stephanie Molina; Rohit Kumar Nair; Henry Hirschberg M.D.

doi:10.1117/12.2253238

19 April 2017 Macrophages as drug delivery vehicles for photochemical internalization (Conference Presentation)

Steen J. Madsen, Jonathan Gonzalez, Stephanie Molina, Rohit Kumar Nair, Henry Hirschberg M.D.

Proceedings Volume 10050, Clinical and Translational Neurophotonics; 100500F (2017) https://doi.org/10.1117/12.2253238
Event: SPIE BiOS, 2017, San Francisco, California, United States

Abstract

Targeted delivery of chemotherapeutic drugs to tumor sites is a major challenge in cancer chemotherapy. Cell-based vectorization of therapeutic agents has great potential for cancer therapy in that it can target and maintain an elevated concentration of therapeutic agents at the tumor site and prevent their spread into healthy tissue. The use of circulating cells such as monocytes/macrophages (Ma) offers several advantages compared to nanoparticles as targeted drug delivery vehicles. Ma can be easily obtained from the patient, loaded in vitro with drugs and reinjected into the blood stream. Ma can selectively cross the partially compromised blood-brain barrier surrounding brain tumors and are known to actively migrate to tumors, drawn by chemotactic factors, including hypoxic regions where conventional chemo and radiation therapy are least effective. The utility of Ma as targeted drug delivery vehicles for photochemical internalization (PCI) of tumors was investigated in this study. In vitro studies were conducted using a mixture of F98 rat glioma cells and rat macrophages loaded with a variety of chemotherapeutic agents including bleomycin and 5-fluorouracil. Preliminary data show that macrophages are resistant to both chemotherapeutics while significant toxicity is observed for F98 cells exposed to both drugs. Co-incubation of F98 cells with loaded Ma results in significant F98 toxicity suggesting that Ma are releasing the drugs and, hence providing the rationale for their use as delivery vectors for cancer therapies such as PCI.

Conference Presentation

Citation Download Citation

Steen J. Madsen, Jonathan Gonzalez, Stephanie Molina, Rohit Kumar Nair, and Henry Hirschberg M.D. "Macrophages as drug delivery vehicles for photochemical internalization (Conference Presentation)", Proc. SPIE 10050, Clinical and Translational Neurophotonics, 100500F (19 April 2017); https://doi.org/10.1117/12.2253238

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Tumors

Cancer

In vitro testing

Therapeutic agents

Toxicity

Blood

Lanthanum

Show All Keywords

Keywords/Phrases

Search In:

Publication Years