IV.1.1) Type of procedure
Award of a contract without prior publication of a call for competition
Justification for selected award procedure:
The procurement falls outside the scope of application of the Directive
Explanation:
The GeoMx Digital Spatial Profiler (DSP)
is only available from NanoString
Technologies, Inc.
The GeoMx DSP is a novel digital technology (proprietary
to NanoString) that is based on multiplexed measurement
of protein and nucleic acids and offers unparalleled levels of
precision coupled with the ability to quantify up to 96 proteins
and over 1000 RNA targets on a formalin-fixed, paraffinembedded
(FFPE) tissue section on a microscope slide.
In contrast to the sequential analysis of multi-target
immunohistochemistry (IHC) slides, the GeoMx DSP samples
all protein or RNA analytes on a single slide. This not only
shortens experiments and simplifies data analysis, but also
provides a higher multiplexing capacity (96 targets) all with
spatial context from Formalin-Fixed, Paraffin-Embedded
(FFPE) tissue sections.
Based on NanoString’s proprietary digital barcoding
technology, the GeoMx DSP platform measures local protein
levels, and can be combined with RNA expression, within
heterogeneous tissue samples. Combining both multiplexed
nucleic acid and protein on the same platform gives
researchers the ability to spatially resolve RNA when suitable
antibodies do not exist. The GeoMx DSP assay is performed on
the GeoMx DSP platform which includes imaging and fluidic
components to capture spatial context, and current nCounter®
or next-generation sequencing (NGS) instruments provide the
quantification.
Protein detection is enabled via primary antibodies which
are covalently attached via a UV photocleavable linker to
DNA indexing oligos. Following antigen retrieval, FFPE tissue
samples are stained with a multiplexed cocktail of labeled
antibodies, and DNA oligos are subsequently released by
UV light exposure across regions of interest. The liberated
DNA oligos are then hybridized to optical barcodes for
quantitation on an nCounter or NGS instrument. This
technique enables quantitative, multiplexed protein detection
up to 5.5 logs of dynamic range.
Key Features and Benefits of DSP technology
- Multiplex many analytes on one tissue section in
a single pass
- Quantitation based on linear single-molecule
counting: up to 5.5 logs
- Single-cell limit of detection
- Non-destructive: sample completely intact after assay
- Single antigen retrieval without effects from
order-of-addition
IV.1.8) Information about Government Procurement Agreement (GPA)
The procurement is covered by the Government Procurement Agreement:
Yes
The contract has been awarded to a group of economic operators:
No