Isosurface of cell with mitochondrial mutation in 3D tumor volume

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96 laser capture microdissection (LCMD) samples were taken from numerous 12-micrometer tumor slices. Each sample was analyzed for known somatic mtDNA mutation. Some of the samples had two mtDNA mutations, thus both were analyzed in the LCMD samples. A total of 9504 laser capture microdissection samples was collected from these tissues.

Based on the mutant fraction found in each LCMD sample a random distribution of 21 cells (mutated and non-mutated) was given X, Y, Z coordinates in the LCMD sample volume. For detailed description follow this LINK.
Isosurfaces depict either mutated or non-mutated cell distribution within the sample volume. The sampling volume was X = 1.5mm, Y = 2.2mm, and Z depending on the tissue thickness, ranging from 0.1mm up to 0.8mm. Illustration of z-axis sampling and tissue support (membrane or glass slide) are shown in this LINK.

 

#5 Testicular tumor   (Leydig cell tumor)                                      
Marker 1 (P2F1) Non-mutated Mutated
Marker 2 (P2F2) Non-mutated Mutated
#13 Liver tumor   (Hepatocellular carcinoma)    
Marker 1 (P1F15) Non-mutated Mutated
#29 Colon tumor   (Colon cancer)    
Marker 1 (P2F1) Non-mutated Mutated
#170 Breast tumor   (Breast cancer)    
 Marker 1 (P1F1) Non-mutated Mutated
#170 Lymph node   (from breast cancer patient)    
 Marker 1 (P1F1) Non-mutated Mutated
#170 Liver metastases   (from breast cancer patient)    
Marker 1 (P1F1) Non-mutated Mutated
# 231 Bladder tumor   (Bladder cancer)    
Marker 1 (P2F6) Non-mutated Mutated
Marker 2 (P5F6) Non-mutated Mutated
#231 Lymph node, (from bladder cancer patient)    
Marker 1 (P2F6) Non-mutated Mutated
Marker 2 (P5F6) Non-mutated Mutated

 

 

An alternative way of presenting these data is by creating isosurfaces for the mutant fractions found in each LCMD sample. As an example, all isosurfaces of mutant fractions from 0% and up to 100% (in 5% points increments) can be found for the samples #5 testicular cancer and #231 lymph node (bladder cancer). Please note that when the isosurface is created for each give mutant fraction the intermediate mutant fractions are not part of the interpolation. Furthermore, lower resolution was also used as compared to the "spread" of 21 theoretical cells in the LCMD volume.

 

Isosurface's was created in Matlab with the following script:
tx=90:18:1350
ty=90:18:2070
tz=-564:6:0
[xg,yg,zg] = meshgrid(tx,ty,tz);
F.Method = 'natural';
F = TriScatteredInterp(x, y, z, e);
eg = F(xg,yg,zg);
fv=isosurface(xg,yg,zg,eg,MF);
 
MF=[0%, 5%. . . . . . . . . . . . . . . . 100%]