Tissue chamber
The present invention relates to systems and methods for tissue processing and analysis. Tissue chambers are configured to allow single-container chemical processing, imaging, and wax embedding of tissue samples in a single container without manipulation between steps. Tissue chambers with features to support the tissue sample and allow fluid flow between the tissue sample and the tissue chamber surface are disclosed. The features may be index matched to sample structures of interest or dissolvable in clearing solution to allow for in-chamber imaging with minimal distortion. Specialized tissue processing and wax removal apparatuses are also disclosed including for use with tissue chambers having frangible portions to permit ease of wax removal.
1. A method for analyzing a tissue sample, the method comprising:
orienting a tissue sample in a tissue chamber in a desired position;
exposing the tissue sample to a first solution for chemical processing in the desired position in the tissue chamber;
immersing the chemically processed tissue sample in a fluid in the desired position in the tissue chamber; and
imaging the immersed tissue sample in the desired position in the tissue chamber without repositioning the tissue sample after orienting.
2. The method of claim 1 , further comprising wax embedding the tissue sample in the desired position in the tissue chamber.
3. The method of claim 2 , wherein the desired position is a desired position for sectioning of the wax-embedded tissue sample.
4. The method of claim 1 , further comprising sealing the tissue sample in the tissue chamber after orienting wherein the first solution and the fluid are introduced to the tissue chamber through a sealable port.
5. The method of claim 1 , wherein the fluid comprises a clearing agent.
6. The method of claim 5 , wherein the clearing agent is BABB.
7. The method of claim 1 , wherein the first solution comprises a dehydrant.
8. The method of claim 1 , wherein the first solution comprises a fixative.
9. The method of claim 8 , wherein the fixative is a dehydrant.
10. The method of claim 1 , wherein the first solution comprises a dye.
11. The method of claim 10 , wherein the dye is a fluorescent dye and the imaging step comprises fluorescent imaging.
12. The method of claim 1 , wherein the desired position is a desired position for imaging of the tissue sample.
13. The method of claim 1 , wherein the tissue chamber comprises a plurality of features disposed on an interior surface of the tissue chamber and configured to contact the tissue sample and permit fluid flow between the tissue sample and the interior surface.