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MSC.sensor: Capturing cancer cell interactions with stroma for functional profiling.

Yun Huang1, Aneta Drakul2, Jasmeet Sidhu3

  • 1Division of Oncology and Children's Research Centre, University Children's Hospital Zurich, Zurich, Switzerland; Moores Cancer Center, University of California, San Diego, La Jolla, CA, United States.

SLAS Discovery : Advancing Life Sciences R & D
|August 12, 2023
PubMed
Summary
This summary is machine-generated.

Researchers engineered mesenchymal stromal cells (MSCs) to detect CD19+ leukemia cells. This advance enables sensitive, scalable ex vivo drug screening for leukemia treatment strategies.

Keywords:
BiosensorDrug synergyEx vivo drug screenLeukemiaMesenchymal stromal cellSynthetic Notch receptor

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Area of Science:

  • Hematology
  • Cell Biology
  • Cancer Research

Background:

  • Mesenchymal stromal cells (MSCs) play a crucial role in regulating the bone marrow microenvironment, influencing both normal and malignant hematopoiesis.
  • MSCs can inadvertently support cancer cell survival and therapeutic resistance within this microenvironment.
  • Leukemia cells, particularly CD19-positive subtypes, interact with the bone marrow niche, posing challenges for effective treatment.

Purpose of the Study:

  • To develop a novel method for detecting and analyzing the interaction between leukemia cells and MSCs.
  • To create a versatile platform for high-sensitivity, scalable ex vivo drug response profiling of primary CD19+ leukemia cells.
  • To investigate the potential of engineered MSCs as a tool for leukemia research and therapeutic development.

Main Methods:

  • Engineering bone marrow MSCs to express a synthetic CD19-sensor receptor.
  • Co-culturing engineered MSCs with primary CD19+ leukemia cells.
  • Utilizing the engineered MSCs to detect and display interacting leukemia cells.

Main Results:

  • The engineered MSCs successfully detected and displayed interacting primary CD19+ leukemia cells in co-culture.
  • The platform demonstrated high sensitivity and scalability for analyzing leukemia cell interactions.
  • This system provides a robust method for ex vivo drug response profiling.

Conclusions:

  • Engineered MSCs offer a promising tool for studying leukemia cell behavior in a relevant microenvironment.
  • The developed platform facilitates sensitive and scalable ex vivo drug screening for CD19+ leukemia.
  • This approach may aid in developing more effective therapeutic strategies by understanding drug responses in a co-culture system.