The phrase "accumulation of staining" is correct and usable in written English.
It can be used in contexts discussing the buildup of stains, whether in a scientific, medical, or artistic setting.
Example: "The accumulation of staining on the glass surface made it difficult to see through clearly."
Alternatives: "buildup of stains" or "collection of staining".
Furthermore, the biological material is observed directly, without heavy metal staining, avoiding problems in interpretation caused by an unpredictable accumulation of staining material.
Thus, the apparently denser accumulation of staining in MDA-MB-468 cells as seen by the immunohistochemistry can be due to different cell morphology of MDA-MB-468 (small cytoplasm, more rounded cell shape).
Right views of ADP.Vi motors show a prominent accumulation of stain at the base of the stalk, not seen in apo/ADP motors.
This accumulation of stain suggests that the stalk coiled coil bifurcates at the junction with the head, as reported for dynein-c (Burgess et al., 2003).
Five different NaNO3 concentrations (0.2, 0.4, 0.6, 0.8 and 1.0 g L-1) were designed to investigate the effect of NaNO3 concentration on cell growth and lipid accumulation of stain R-16.
Yet, by analyzing whole specimens of lymph nodes with metastases, we found diffuse accumulation of lacZ staining only in areas with metastatic melanoma cells (Fig 4A C).
The majority of the polarized EGFP-Syk and EGFP-Syk Y323F expressing cells showed not only an enrichment of EGFP epifluorescence (69.3% and 75.1%, respectively) but also an accumulation of PI3K p110γ staining (83.2% and 78.2%) at the lamellipodium forming site indicating that the translocation of the Class IB PI3K p100γ was independent of Syk-Tyr323 (Figure 2D and E).
Third, in tumours treated with T-DM1 we found an accumulation of HER2 staining positive intracellular granules of variable size.
Results again showed a significant increase in MitoSOX Red staining in optic nerves of mice infected with MHV-A59, as compared to control optic nerves, and treatment with SRTAW04 for 30 days significantly attenuated the accumulation of superoxide staining.
As shown in Figure 3C, U2OS cells treated with ETP exhibited accumulation of RPA2 staining not only in actively replicating cells (as measured by EdU incorporation), but also in G2 cells.
Both in HUVEC and HAEC, CBS knockdown led to a premature accumulation of cells staining positive for senescence associated ß-galactosidase (SA-ß-gal) (Fig. 2B), whereas the proportion of SA-ß-gal-positive cells was not altered by CBS depletion in HDF (Fig. 2B).
