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quantitative speckle fluorescence microscopy (qfsm) software  (MathWorks Inc)


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    MathWorks Inc quantitative speckle fluorescence microscopy (qfsm) software
    Quantitative Speckle Fluorescence Microscopy (Qfsm) Software, supplied by MathWorks Inc, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/qfsm+software/bio_rxiv__2025__01__12__632635-224-9-17
    Average 90 stars, based on 1 article reviews
    quantitative speckle fluorescence microscopy (qfsm) software - by Bioz Stars, 2026-09
    90/100 stars

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    Software:

    Article Title: Coupling of β2 integrins to actin by a mechanosensitive molecular clutch drives complement receptor-mediated phagocytosis
    Article Snippet: .. Fluorescent speckles were then detected and tracked with the QFSM software from the Danuser lab in Matlab R2016a (Mathworks), as described previously . .. For immunofluorescence of endogenous adhesion proteins, cells were incubated with opsonized particles, fixed for 10 minutes at 37 ̊C, then rinsed twice and fixed with 4% paraformaldehyde (Electron microscopy science) in cytoskeleton buffer (10 mM MES pH 6.1, 138 mM KCl, 3 mM MgCl 2 , 2 mM EGTA) for 20 minutes.

    Article Title: Signal analysis of total internal reflection fluorescent speckle microscopy (TIR-FSM) and wide-field epi-fluorescence FSM of the actin cytoskeleton and focal adhesions in living cells.
    Article Snippet: Fluorescent speckle microscopy (FSM) uses low levels of fluorescent proteins to create fluorescent speckles on cytoskeletal polymers in high-resolution fluorescence images of living cells.. The dynamics of speckles over time encode subunit turnover and motion of the cytoskeletal polymers.. We sought to improve on current FSM technology by first expanding it to study the dynamics of a non-polymeric macromolecular assembly, using focal adhesions as a test case, and second, to exploit for FSM the high contrast afforded by total internal reflection fluorescence microscopy (TIR-FM).

    Article Title: Coupling of β 2 integrins to actin by a mechanosensitive molecular clutch drives complement receptor-mediated phagocytosis.
    Article Snippet: .. Fluorescent speckles were then detected and tracked with the QFSM software from the Danuser lab in Matlab R2016a (Mathworks), as described previously57. ..

    Article Title: Amoeboid cells undergo durotaxis with soft end polarized NMIIA
    Article Snippet: .. Videos were analyzed using a previously described qFSM software in MATLAB ( ). ..



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    Nau s regulates lamellipodial actin density and actin retrograde flow in S2R+ cells. (A,B) Fixed S2R+ cells treated with control (A) or Naus RNAi (B) stained for F-actin with phalloidin. Gray levels have been set equal for comparison. Scale bar: 10 µm. (C) Line-scan analysis of F-actin fluorescence in the lamellipodia from cells as shown in A and B. Fluorescence was normalized for each cell and averaged for each condition (black circles, control RNAi and open gray, circles Naus RNAi). (D) Mean fluorescence intensity of lamellipodial actin of cells treated with control RNAi (black circles) or Naus RNAi (open black circles) from cells as shown in A and B ( P <0.0001, Student's t -test, n =30 cells per condition). (E,F) Representative heat maps of actin speeds in (E) control or (F) Naus RNAi-treated cells from <t>QFSM</t> analysis. Cool colors indicate slower rates of retrograde flow and warm colors represent faster speeds of actin retrograde flow. Scale bar: 10 µm. (G) Quantification of lamellipodial actin speeds from QFSM analysis ( P= 0.0059, Mann–Whitney test, control RNAi: n =40 cells, Naus RNAi: n =46 cells). (H) Quantification of the mean fluorescence intensity of EGFP-Actin in the cells analyzed by QFSM (black circles, control RNAi and open black circles, Naus RNAi), n.s., not significant (Mann–Whitney test).
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    Nau s regulates lamellipodial actin density and actin retrograde flow in S2R+ cells. (A,B) Fixed S2R+ cells treated with control (A) or Naus RNAi (B) stained for F-actin with phalloidin. Gray levels have been set equal for comparison. Scale bar: 10 µm. (C) Line-scan analysis of F-actin fluorescence in the lamellipodia from cells as shown in A and B. Fluorescence was normalized for each cell and averaged for each condition (black circles, control RNAi and open gray, circles Naus RNAi). (D) Mean fluorescence intensity of lamellipodial actin of cells treated with control RNAi (black circles) or Naus RNAi (open black circles) from cells as shown in A and B ( P <0.0001, Student's t -test, n =30 cells per condition). (E,F) Representative heat maps of actin speeds in (E) control or (F) Naus RNAi-treated cells from QFSM analysis. Cool colors indicate slower rates of retrograde flow and warm colors represent faster speeds of actin retrograde flow. Scale bar: 10 µm. (G) Quantification of lamellipodial actin speeds from QFSM analysis ( P= 0.0059, Mann–Whitney test, control RNAi: n =40 cells, Naus RNAi: n =46 cells). (H) Quantification of the mean fluorescence intensity of EGFP-Actin in the cells analyzed by QFSM (black circles, control RNAi and open black circles, Naus RNAi), n.s., not significant (Mann–Whitney test).

    Journal: Biology Open

    Article Title: The Drosophila protein, Nausicaa, regulates lamellipodial actin dynamics in a Cortactin-dependent manner

    doi: 10.1242/bio.038232

    Figure Lengend Snippet: Nau s regulates lamellipodial actin density and actin retrograde flow in S2R+ cells. (A,B) Fixed S2R+ cells treated with control (A) or Naus RNAi (B) stained for F-actin with phalloidin. Gray levels have been set equal for comparison. Scale bar: 10 µm. (C) Line-scan analysis of F-actin fluorescence in the lamellipodia from cells as shown in A and B. Fluorescence was normalized for each cell and averaged for each condition (black circles, control RNAi and open gray, circles Naus RNAi). (D) Mean fluorescence intensity of lamellipodial actin of cells treated with control RNAi (black circles) or Naus RNAi (open black circles) from cells as shown in A and B ( P <0.0001, Student's t -test, n =30 cells per condition). (E,F) Representative heat maps of actin speeds in (E) control or (F) Naus RNAi-treated cells from QFSM analysis. Cool colors indicate slower rates of retrograde flow and warm colors represent faster speeds of actin retrograde flow. Scale bar: 10 µm. (G) Quantification of lamellipodial actin speeds from QFSM analysis ( P= 0.0059, Mann–Whitney test, control RNAi: n =40 cells, Naus RNAi: n =46 cells). (H) Quantification of the mean fluorescence intensity of EGFP-Actin in the cells analyzed by QFSM (black circles, control RNAi and open black circles, Naus RNAi), n.s., not significant (Mann–Whitney test).

    Article Snippet: The resulting movies were analyzed using a previously described Quantitative Fluorescent Speckle Microscopy (QFSM) software in MATLAB ( ).

    Techniques: Control, Staining, Comparison, Fluorescence, MANN-WHITNEY