human fibroblast cell line  (ATCC)

Journal: Macromolecular Bioscience

Article Title: Lignin Nanoparticles Containing Cobalt‐Cyanine Complexes: Potential Multifunctional Platforms for Photoacoustic Imaging and Photothermal Treatment of Bacterial Biofilms in Chronic Wounds

doi: 10.1002/mabi.202500532

Figure Lengend Snippet: Cell compatibility of CoPc‐Lig NPs. A) Cell viability of fibroblasts (black bars) and keratinocytes (white bars) exposed to different concentrations of CoPc‐Lig NPs for 24 h. B) Confocal images showing cell internalization of CoPc‐Lig NPs (0.5 mg/mL) by fibroblasts and keratinocytes. The dark areas in brightfield images represent CoPc‐Lig NPs, while the fluorescence channels show cell nuclei (Blue), and cell cytoskeleton (green).

Article Snippet: Bacterial strains ( Staphylococcus aureus ATCC 6538 and Pseudomonas aeruginosa ATCC 9027) and human fibroblast cell line (ATCC‐SCRC‐1041, HFF‐1) were purchased from the American Type Culture Collection (ATCC LGC Standards, Italy).

Techniques: Fluorescence

Journal: bioRxiv

Article Title: The Heat shock protein 70 machinery is crucial in the production of infectious chikungunya virus progeny

doi: 10.64898/2026.01.26.701664

Figure Lengend Snippet: (A) Metabolic activity of the HFF-1 cells was assessed after 16 h of treatment with increasing concentrations of the Hsp70 inhibitors or the equivalent volume of the DMSO control. The percentage of metabolically active cells is presented relative to the DMSO control. A decrease of 15% in metabolically active cells was considered non-toxic (dotted line represents 85%). (B) HFF-1 cells were infected with CHIKV-LR OPY1 at MOI 5 while treated with 2 µM or 1 µM of JG98 or JG345, respectively, and virus production was assessed at 9 hpi via plaque assay. Data are presented as mean±SEM from three independent experiments, and statistical differences were determined via One-way ANOVA and presented when p≤0.05 with *p ≤ 0.05, **p ≤ 0.01, ***p ≤ 0.001, ****p ≤ 0.001.

Article Snippet: The human bone osteosarcoma epithelial cell line U2OS (ATCC HTB-96) and human foreskin fibroblast cell line HFF-1 (ATCC SCRC-1041) were maintained in Dulbecco’s minimal essential medium (DMEM), high glucose, GlutaMAX tm, and sodium pyruvate (Gibco), supplemented with penicillin-streptomycin (P/S; 100U/mL, Gibco) and 10% or 15% fetal bovine serum (FBS, Lonza), respectively.

Techniques: Activity Assay, Control, Metabolic Labelling, Infection, Virus, Plaque Assay

Journal: bioRxiv

Article Title: The Heat shock protein 70 machinery is crucial in the production of infectious chikungunya virus progeny

doi: 10.64898/2026.01.26.701664

Figure Lengend Snippet: Metabolic activity of (A) U2OS and (B) HFF-1 cells was assessed after 16 h of treatment with increasing concentrations of JG231 or the equivalent volume of the DMSO control. The percentage of metabolically active cells is presented relative to the DMSO control. A decrease of 15% in metabolically active cells was considered non-toxic (dotted line represents 85%). (C) U2OS cells and (D) HFF-1 cells were infected with CHIKV-LR for 9 h in the presence of 2 µM JG231 or the DMSO control. Supernatants were collected, and the number of infectious particles in the supernatant was determined using the plaque assay. (E and F) Mouse skin explants were infected with 10 6 PFU/mL of the CHIKV 899 strain during treatment with 2 µM JG231 or an equal volume of DMSO. (E) Infectious virus production (tissue culture infectious dose 50% (TCID 50 )) and (F) total virus production (GEC) at 2 dpi is displayed per mg tissue. The dotted line indicates the limit of quantification (LOQ). To evaluate statistical differences from the DMSO control, we used a Student T-test, and differences are presented when p≤0.05 with *p ≤ 0.05, **p ≤ 0.01, ***p ≤ 0.001, ****p ≤ 0.001.

Article Snippet: The human bone osteosarcoma epithelial cell line U2OS (ATCC HTB-96) and human foreskin fibroblast cell line HFF-1 (ATCC SCRC-1041) were maintained in Dulbecco’s minimal essential medium (DMEM), high glucose, GlutaMAX tm, and sodium pyruvate (Gibco), supplemented with penicillin-streptomycin (P/S; 100U/mL, Gibco) and 10% or 15% fetal bovine serum (FBS, Lonza), respectively.

Techniques: Activity Assay, Control, Metabolic Labelling, Infection, Plaque Assay, Virus