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vimentin

vimentin

9.9
A protein used in labs to find cells from connective tissue or some tumors
  • noun
  • /vaɪˈmɛntɪn/
  • Specialized
: vimentina
  • The epithelial component exhibited a positive immunohistochemical reaction to cytokeratin and a negative reaction to vimentin, whereas the mesenchymal component showed a positive immunohistochemical reaction to vimentin and a negative reaction to cytokeratin.
  • positive for vimentin
  • vimentin but negative
  • vimentin and cytokeratin

Examples

  • Immunohistochemical studies show a positive reaction with vimentin, but negative for desmin, S-100 protein, and cytokeratin.

    Academic text (1996)
  • Immunohistochemical studies showed positive staining of tumor cells for vimentin and focally for S-100 protein.

    Academic text (2003)
  • All the experimental groups showed strong positive expression for vimentin.

    Academic text (2018)
  • Immunohistochemistry was positive for CD99, vimentin, BCL2, and CD56.

    Academic text (2015)
  • They are immunoreactive for vimentin and not immunoreactive for HMB-45.

    Academic text (2004)
  • Immunoperoxidase stains were positive for vimentin but negative for cytokeratin, chromogranin, S-100 protein, synaptophysin, ULEX europeus, and LCA.

    Academic text (1996)
  • Immunohistochemistry has been used in the past to help differentiate this tumor from non-neural derived lesions, with vimentin and neuron-specific enolase being positive and cytokeratin being absent.

    Academic text (1996)
  • Immunohistochemistry can demonstrate antibodies to S-100, vimentin, smooth-cell actin, desmin, CD34, and neuron-specific enolase.

    Academic text (2009)
  • Researchers found that the presence of vimentin in the tissue samples indicated the tumors were of mesenchymal origin.

  • In their analysis, they observed that the cells expressed vimentin, which helped confirm the diagnosis of a specific tumor type.

Surface Forms

vimentin singular
vimentins plural

Morphology

vimentin = viment (opaque) = viment + in

The element 'viment' is a specialized combining form (not a standalone modern English word) and '-in' is a protein-suffix; the combination is scientific and not transparently interpretable by general learners.

Etymology

The word vimentin comes from the Latin vimen, meaning 'twig', plus the common protein ending -in, giving the idea of thin, supporting threads. That's why scientists use vimentin as a lab marker for mesenchymal cells and some types of tumors, because those cells show these thread-like supports.