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Discrete subsets of myogenic and mesenchymal precursors give rise to soft tissue sarcomas of distinct lineage differentiation

ABSTRACT: This work examines sarcoma formation within discrete subsets of KRAS(G12V)-expressing p16p19null myogenic and mesenchymal cells found normally in skeletal muscle. We show that prospectively isolated skeletal muscle precursor cells (SMPs) within the satellite cell pool can serve as cancer cells-of-origin for mouse rhabdomyosarcomas (soft tissue sarcomas with features of myogenic differentiation). Alternatively, non-myogenic progenitors (ScaPCs) induce sarcomas lacking myogenic differentiation markers. We used Affymetrix whole mouse genome 430 2.0 microarrays to gain deeper insights into the molecular underpinnings of the three types of KRAS; p16p19null mouse soft-tissue sarcomas (originating from SMPs, ScaPCs and CD45-MAC1-TER119-Sca1-CXCR4- cells). Four replicates of each type.

ORGANISM(S): Mus musculus

SUBMITTER: Amy Wagers

PROVIDER: E-GEOD-22841 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Discrete subsets of myogenic and mesenchymal precursors give rise to soft tissue sarcomas of distinct lineage differentiation

Project description:This work examines sarcoma formation within discrete subsets of KRAS(G12V)-expressing p16p19null myogenic and mesenchymal cells found normally in skeletal muscle. We show that prospectively isolated skeletal muscle precursor cells (SMPs) within the satellite cell pool can serve as cancer cells-of-origin for mouse rhabdomyosarcomas (soft tissue sarcomas with features of myogenic differentiation). Alternatively, non-myogenic progenitors (ScaPCs) induce sarcomas lacking myogenic differentiation markers.

2011-11-10 | GSE22841 | GEO

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KRAS mutation (G12V) expression by pBABE-Puro vector in NCI-H1703 cells

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Rhabdomyosarcoma can be initiated in activated Pax7+ Muscle Progenitor Cells

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Entropic singularities give rise to quantum transmission.

Project description:When can noiseless quantum information be sent across noisy quantum devices? And at what maximum rate? These questions lie at the heart of quantum technology, but remain unanswered because of non-additivity- a fundamental synergy which allows quantum devices (aka quantum channels) to send more information than expected. Previously, non-additivity was known to occur in very noisy channels with coherent information much smaller than that of a perfect channel; but, our work shows non-additivity in a simple low-noise channel. Our results extend even further. We prove a general theorem concerning positivity of a channel's coherent information. A corollary of this theorem gives a simple dimensional test for a channel's capacity. Applying this corollary solves an open problem by characterizing all qubit channels whose complement has non-zero capacity. Another application shows a wide class of zero quantum capacity qubit channels can assist an incomplete erasure channel in sending quantum information. These results arise from introducing and linking logarithmic singularities in the von-Neumann entropy with quantum transmission: changes in entropy caused by this singularity are a mechanism responsible for both positivity and non-additivity of the coherent information. Analysis of such singularities may be useful in other physics problems.

| S-EPMC8486852 | biostudies-literature

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