nucleolin rabbit polyclonal  (Cell Signaling Technology Inc)

Journal: Biomolecules

Article Title: Myogenic Anti-Nucleolin Aptamer iSN04 Inhibits Proliferation and Promotes Differentiation of Vascular Smooth Muscle Cells

doi: 10.3390/biom14060709

Figure Lengend Snippet: Nucleolin localization and iSN04 incorporation in A10 cells. ( A ) Representative fluorescence images of nucleolin staining of A10 cells in GM (day 0) and DM with or without 10 μM iSN04 (day 4). Scale bar, 50 μm. ( B ) Representative fluorescence images of A10 cells treated with 5 μg/mL 6-FAM-iSN04 in GM. Scale bar, 50 μm. 6-FAM, 6-carboxyfluorescein; DAPI, 4′,6-diamidino-2-phenylindole; DM, differentiation medium; GM, growth medium.

Article Snippet: The cells were fixed with 2% paraformaldehyde, permeabilized with 0.2% Triton X-100, and immunostained with 1.0 μg/mL rabbit polyclonal anti-nucleolin antibody (ab22758; Abcam, Cambridge, UK) or 1.0 μg/mL mouse monoclonal anti-α-SMA antibody (1A4, ab7817; Abcam) overnight at 4 °C.

Techniques: Fluorescence, Staining

Journal: Biomolecules

Article Title: Myogenic Anti-Nucleolin Aptamer iSN04 Inhibits Proliferation and Promotes Differentiation of Vascular Smooth Muscle Cells

doi: 10.3390/biom14060709

Figure Lengend Snippet: The effect of iSN04 on proliferation and differentiation of hAoSMCs. ( A ) Representative fluorescence images of nucleolin staining of hAoSMCs in hGM (day 0) and hDM (day 4). Scale bar, 50 μm. ( B ) Representative fluorescence images of EdU staining of hAoSMCs pre-treated with 30 μM iSN04 in hGM for 48 h and then with 10 μM EdU in hGM for 12 h. Scale bar, 200 μm. The ratio of EdU + cells were quantified. ** p < 0.01 vs. control (Student’s t -test). n = 4. ( C ) qPCR results of a cell-cycle marker gene, Ki-67 ( MKI67 ), and contractile SMC marker genes, α-SMA ( ACTA2 ), SM22α ( TAGLN ), and caldesmon ( CALD1 ), in hAoSMCs treated with 30 μM iSN04 in hGM for 48 h. * p < 0.05; ** p < 0.01 vs. control (Student’s t -test). n = 3. DAPI, 4′,6-diamidino-2-phenylindole; DM, differentiation medium; EdU, 5-ethynyl-2′-deoxyuridine; GM, growth medium; hAoSMC, human aortic smooth muscle cell; hDM, differentiation medium for human aortic smooth muscle cell; hGM, growth medium for human aortic smooth muscle cell; qPCR, quantitative real-time RT-PCR; SMC, smooth muscle cell.

Article Snippet: The cells were fixed with 2% paraformaldehyde, permeabilized with 0.2% Triton X-100, and immunostained with 1.0 μg/mL rabbit polyclonal anti-nucleolin antibody (ab22758; Abcam, Cambridge, UK) or 1.0 μg/mL mouse monoclonal anti-α-SMA antibody (1A4, ab7817; Abcam) overnight at 4 °C.

Techniques: Fluorescence, Staining, Control, Marker, Quantitative RT-PCR

Journal: Cell death and differentiation

Article Title: Actionable cancer vulnerability due to translational arrest, p53 aggregation and ribosome biogenesis stress evoked by the disulfiram metabolite CuET.

doi: 10.1038/s41418-023-01167-4

Figure Lengend Snippet: Fig. 2 CuET alters the nucleolar morphology. A Representative IF images of A549 nuclei treated with CuET or ActDL for the indicated time points. Fibrillarin (FBL) or nucleophosmin (NPM1) were used as nucleolar markers. Scale bar: 5 μM. B Representative IF images of nucleolin and 5.8S rRNA levels in A549 cells treated with CuET or ActDL for the indicated time points. Scale bar: 50 µm. C AgNOR staining of U2OS or A549 cells following a four-hour treatment of increasing CuET doses. Scale bar: 10 μm. D Ethylene uridine (EU) levels were calculated following IF and high content imaging of U2OS treated with 1 μM CuET for the indicated time points. 750–1500 cells were analyzed per experiment (data are shown as mean ± SD, n = 3 biological replicates, **p < 0.01). Scale bar: 50 µm. E Detection of NPL4 protein levels with immunocytochemistry in samples from patients with triple-negative breast cancer (TNBC) or ovarian carcinoma. Regions in red squares are presented magnified in the bottom panel. Scale bar: 100 μM. F Representative IF images of nucleolar structure in U2OS treated with ActDL or BMH-21 as nucleolar stress inducers. Fibrillarin (FBL) was used as a nucleolar marker. Insets depict magnifications of the regions designated in squares. Scale bar: 2 μM.

Article Snippet: The antibodies used are as follows: rabbit polyclonal Fibrillarin (Abcam, ab5821), mouse monoclonal Nucleophosmin (Abcam, ab10530), rabbit polyclonal Nucleolin (Abcam, ab22758), rabbit polyclonal RPL5 (uL18) (Abcam, ab86863), mouse monoclonal p53 (Abcam, ab1101), rabbit polyclonal phospho-p53 (ser15) (Abcam, ab1431), rabbit polyclonal phospho-p53 (ser20) (Cell signaling, 9287), rabbit monoclonal acetyl-p53 (K382) (Abcam, ab75754), mouse monoclonal p53 (Santa Cruz, sc-126), rabbit monoclonal p21 (Cell Signaling, 2947), mouse monoclonal MDM2 (mixture of 2A9, 4B2 and 4B11 clones, kindly provided by M.Oren), mouse monoclonal MDM2 (SMP14, Santa Cruz, sc-965), mouse monoclonal MDM2 (Millipore, 05-1530), mouse monoclonal CHK2 (H300, Santa Cruz, sc-9064), mouse monoclonal TIAR (Becton Dickinson, 610352), mouse monoclonal beta-actin (Abcam ab6276), rabbit polyclonal phospho-eIF2a (ser51) (Cell Signaling, 9722), rabbit polyclonal phospho-Chk1 (Ser317) (Cell Signaling 2344), mouse monoclonal 5.8S rRNA (Novus Biologicals, NB100-622), rabbit polyclonal NPL4 (Novus Biologicals, NBP1-82166), mouse monoclonal lamin B1 (Santa Cruz, sc-6217), mouse monoclonal a-tubulin (Santa Cruz, sc-8035).

Techniques: Staining, Imaging, Immunocytochemistry, Marker