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Updated: May 30, 2026
Long Term Intravital Multiphoton Microscopy Imaging of Immune Cells in Healthy and Diseased Liver Using CXCR6.Gfp Reporter Mice
Published on: March 24, 2015
High-resolution, noninvasive longitudinal live imaging of immune responses
Midhat H Abdulreda1, Gaetano Faleo, Ruth Damaris Molano
1Diabetes Research Institute, Department of Biomedical Engineering, University of Miami, Miami, FL 33136, USA.
Insights
Researchers developed a new method for longitudinal, noninvasive imaging of pancreatic islet transplants in mouse eyes. This technique allows for in vivo cell labeling, local interventions, and real-time immune cell tracking.
Area of Science:
- Immunology
- Ophthalmology
- Transplantation Biology
Background:
- Intravital imaging is crucial for in vivo biological research.
- Current techniques often lack single-cell resolution for longitudinal studies.
- Repeated noninvasive access to the same tissue remains a challenge.
Purpose of the Study:
- To develop a novel approach for studying immune responses in pancreatic islet transplants.
- To enable longitudinal, noninvasive imaging of transplanted tissues in vivo.
- To facilitate in vivo cell assessment and local interventions.
Main Methods:
- Utilized the anterior chamber of the mouse eye for pancreatic islet transplantation.
- Employed longitudinal, noninvasive imaging techniques.
- Performed in vivo cytolabeling for cellular analysis.
- Conducted local interventions via topical application or intraocular injection.
- Tracked infiltrating immune cells in real-time.
Main Results:
- Successfully enabled longitudinal, noninvasive monitoring of transplanted pancreatic islets.
- Allowed for in vivo assessment of cell phenotype and viability.
- Demonstrated feasibility of local interventions within the anterior chamber.
- Achieved real-time tracking of immune cell infiltration into the target tissue.
Conclusions:
- The anterior chamber of the mouse eye serves as a viable site for studying immune responses to islet transplantation.
- This novel approach overcomes limitations in current intravital imaging techniques for longitudinal studies.
- The method facilitates comprehensive analysis of immune cell dynamics and therapeutic interventions in vivo.
Abstract:
Intravital imaging emerged as an indispensible tool in biological research, and a variety of imaging techniques have been developed to noninvasively monitor tissues in vivo. However, most of the current techniques lack the resolution to study events at the single-cell level. Although intravital multiphoton microscopy has addressed this limitation, the need for repeated noninvasive access to the same tissue in longitudinal in vivo studies remains largely unmet. We now report on a previously unexplored approach to study immune responses after transplantation of pancreatic islets into the anterior chamber of the mouse eye. This approach enabled (i) longitudinal, noninvasive imaging of transplanted tissues in vivo; (ii) in vivo cytolabeling to assess cellular phenotype and viability in situ; (iii) local intervention by topical application or intraocular injection; and (iv) real-time tracking of infiltrating immune cells in the target tissue.
