A novel, high-throughput, nanotopographic platform for screening cell migratory behavior

Patent metadata

Field	Value
Publication number	US-2017016884-A1
Application number	US-201515125041-A
Country	US
Kind code	A1
Filing date	Mar 10, 2015
Priority date	Mar 10, 2014
Publication date	Jan 19, 2017
Grant date	—

Abstract

The present invention is directed to creating a highly versatile, high throughput, and convenient platform for interrogating migration phenotypes of GB cells in the context of diverse environmental parameters. Specifically, engineered substrates are employed to mimic the mechanical signals of natural ECM topography, and combine these tools with chemical cues presented in soluble and immobilized forms (PDGF and laminin, respectively). This platform achieves far greater resolution and sensitivity in migration analyses than do commonly used methods. More importantly, it can provide highly informative, patient specific results regarding tumor progression in vivo. Furthermore these capabilities strongly convey the immense clinical, prognostic potential of this simple test.

First claim

1 . A device for cell migration comprising:
a multi-well plate having a number of well chambers, wherein the well chambers comprise at least one wall defining the well chamber; a nanopatterned surface, wherein the nanopatterned surface is positioned on the at least one wall defining the well chamber; wherein the nanopatterened surface is configured to mimic the topographic structure of a natural cell environment.

2 . The device for cell migration of claim 1 wherein the nanopatterned surface further comprises parallel ridges.

3 . The device for cell migration of claim 2 wherein the parallel ridges are approximately 350 nm wide and approximately 500 nm high and spaced apart 1.5 μm.

4 . The device for cell migration of claim 1 wherein the nanopatterned surface is formed directly into the at least one wall defining the well chamber.

5 . The device for cell migration of claim 1 wherein the nanopatterened surface is formed onto a glass coverslip.

6 . The device for cell migration of claim 1 wherein the nanopatterned surface is configured to mimic the mechanical signals of natural ECM topography.

7 . The device for cell migration of claim 6 wherein the nanopatterned surface configured to mimic the mechanical signals of natural ECM topography is combined with chemical cues.

8 . The device for cell migration of claim 7 wherein the chemical cues are soluble.

9 . The device for cell migration of claim 7 wherein the chemical cues are immobilized.

10 . The device for cell migration of claim 1 further comprising a coating of laminin.

11 . The device for cell migration of claim 10 further comprising varying the concentration of laminin in the coating.

12 . The device for cell migration of claim 1 further comprising a coating of platelet derived growth factor (PDGF).

13 . The device for cell migration of claim 12 further comprising varying the concentration of PDGF in the coating.

14 . The device for cell migration of claim 1 further comprising configuring the device for cell migration to test migration of glioblastoma.

15 . The device for cell migration of claim 1 further comprising configuring the device to provide patient-specific results regarding tumor progression.

16 . The device for cell migration further comprising configuring the device for diagnosis of brain tumors.

Assignees

• Univ Johns Hopkins

Inventors

• Smith Christopher
• Levchenko Andre
• Kim Deok-Ho
• Quinones-Hinojosa Alfredo

Classifications

• G01N33/57557

  of other specific parts of the body, e.g. brain · CPC title

• G01N33/575

  for cancer · CPC title

• B01L2300/0896

  Nanoscaled · CPC title

• B01L2300/0822

  Slides · CPC title

• G01N33/4833

  of solid biological material, e.g. tissue samples, cell cultures (tissue in vivo A61B5/00; cell suspensions G01N33/48735) · CPC title