Layer-by-layer coated microneedles for cancer immunotherapy

Over the past few decades, research in therapeutic cancer vaccines has achieved remarkable advances in both pre-clinical and clinical studies. However, strategies to boost antigen presentation and T cell priming in order to increase the fraction of patients responding to immunotherapy remains an urgent need. For the delivery platform, we applied microneedle (MN) skin patches to transdermally deliver vaccines to activate the potent epidermal Langerhans cells and dermal dendritic cells. The drug was incorporated as a releasable multilayer coating on the microneedle surface constructed with alternating absorption of oppositely charged species including protein or nucleic acid drugs and biocompatible polymer carriers, forming a 'sticky' layer-by-layer (LbL) film through electrostatic attraction. Past LbL MN strategies have all retained this 'sticky' nature and therefore require a long application time (15-90 mins) for drug implantation.

Name thesis:degree_name

Doctoral

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Chemical Engineering

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2021

Author dc:creator

• He, Yanpu.

Advisor dc:contributor.advisor

• Paula T. Hammond and Darrell J. Irvine.

• Chemical Engineering.

Statement dc:rights

• MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

https://hdl.handle.net/1721.1/130668

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/130668