Template blanks (water) and extraction controls, consisting of lysis buffer minus tissue extract, were included in every assay.
Here, we demonstrate that a Drosophila larva-derived tissue extract strongly elicits Toll pathway activation via the Toll receptor.
Tissue extract, or tissue thromboplastin, is extracted from animal tissues rich in tissue factor.
c, Direct infusion electrospray ionization Fourier-transform ion cyclotron resonance (ESI-FT-ICR) mass spectrum of the skin tissue extract showing high spectral complexity.
e, Direct infusion ESI-FT-ICR mass spectra of skin tissue extract showing an overlay of the isolated precursor spectrum for decarboxylated xanthommatin (green, m/z 380.0876, theoretical: m/z 380.0877) and the fragment spectrum (red).
f, Direct infusion ESI-FT-ICR mass spectra of skin tissue extract showing an overlay of the isolated precursor spectrum for xanthommatin (green, m/z 424.0774, theoretical: m/z 424.0775) and the fragment spectrum (red).
Tissue extract and serum were prepared in 2% perchloric acid (PCA) (20 mg of tissue/20 μl serum per 200 μl 2% PCA) and analyzed for NE content using reversed-phase high performance liquid chromatography (HPLC).
In next-gen sequencing, scientists grind up tissue, extract its DNA, break the DNA into pieces, then dilute those pieces enough so that each piece of DNA sticks to a separate spot on a glass slide.
These results suggest that our larva-derived tissue extract contains active ingredients that mediate Toll pathway activation, and the screening data will shed light on the mechanisms of damage-related Toll pathway signaling in Drosophila.
The addition of fresh ATP, either as a pure chemical or as a constituent of a tissue extract, immediately restores the luminescence.
Nevertheless, using these supplements (or fractions thereof), insight could be gained into some of the influences of serum or tissue extract constituents with re gard to survival, proliferation and differentiation of cells in cul ture.
