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Solution 5

Manufactured by Lonza
Sourced in Germany

Solution V is a high-performance laboratory centrifuge designed for a wide range of applications. It features a compact and robust construction, providing reliable and consistent performance. The centrifuge is capable of handling a variety of sample volumes and can achieve high rotational speeds, making it suitable for common laboratory procedures such as sample preparation, cell separation, and biomolecule purification.

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8 protocols using solution 5

1

siRNA Knockdown in CLL Cells

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siRNA against human HSP90, BTK or AKT (2 μg) were transfected into CLL cells using Amaxa Nucleofector II device (Amaxa, Cologne, Germany) and Solution V (Amaxa). Nucleofector program U-15 was applied according to the manufacturer’s instructions.28 (link),29 ,40 (link),41 (link)
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2

Ex Vivo Functional Analysis of PTCL CD30+ Cells

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A human PTCL CD30+ cell line (Fe-Pd) was used to perform the ex vivo functional experiments. Transient transfections were performed by nucleofection, using an Amaxa apparatus, program X-01 and solution V (Amaxa, Cologne, Germany). Total RNA from Fe-Pd cell line was extracted with Trizol according to the manufacturer's instructions (Invitrogen, Life Technologies). RNA was quantified using ND-1000 spectrophotometer running software version 3.0.1 (NanoDrop Technologies Inc.).
Gene expression profiling was executed on transfected and untransfected Fe-Pd cells using Gene Chip 2.0 Whole Transcript Assay (Affymetrix, Santa Clara, CA, USA) (details are provided in Supplementary File).
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3

siRNA Knockdown of Borcs and Kif Genes in Macrophages

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The siRNA-mediated gene knockdown was carried out as described previously50 (link). Briefly, Raw264.7 macrophages and BMDMs were resuspended in 90 µL of solution V (for Raw264.7 cells; Lonza) or solution for mouse macrophages (for BMDMs; Lonza), respectively. The cell suspension was mixed with either 1.5 μg of scrambled siRNAs or siRNAs against Borcs5, Borcs6, Borcs7, Borcs8, Kif5a, Kif5b and Kif1b, and then transferred to a nucleofection cuvette and nucleofected using the Amaxa Nucleofector device (Amaxa Biosystems) set to either programme D-032 (for RAW264.7 macrophages) or Y-001 (for BMDMs). At 24 h post-transfection, the cells were collected and plated in preparation for the experiments.
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4

Nox2 and Sod2 Knockdown in RAW264.7 Macrophages

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siRNA-mediated knockdown was performed as previously described (Ponpuak et al. 2009 (link)). In brief, RAW264.7 macrophages were collected and resuspended in 90 μl of solution V (Lonza). Scramble control siRNAs or siRNAs against Nox2 or Sod2 was added to the cell suspension, transferred to a nucleofection cuvet, and nucleofected using the Amaxa Nucleofector apparatus (Amaxa Biosystems; program D-032). At 24 h post-transfection, cells were collected and plated for assays.
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5

CRISPR-Mediated Gene Regulation in HEK293 Cells

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pLVhU6-sgRNA hUbC-dCas9-KRAB-T2a-GFP was purchased from Addgene (Cambridge). Oligos encoding sgRNAs designed using GPP sgRNA Designer (https://portals.broadinstitute.org/gpp/public/analysis-tools/sgrna-design-crisprai) were annealed and cloned into the plasmid. HEK293 cells were washed twice with PBS and 2 × 106 cells were resuspended in 100 µL of Solution V (Lonza) and then mixed with 5 µg purified sgRNA expression vector or the empty vector as a negative control before nucleofection using program Q-001 of a Nucleofector 2b (Lonza). To enrich transfectants, single cells were sorted 16 h post-nucleofection using an SH800 cell sorter (SONY), and GFP-positive cells were enriched. Cells were then cultured in complete Dulbecco's modified Eagle's medium in two poly-l-lysine-coated wells of a 24-well plate at 37°C in a humidified atmosphere with 5% CO2 for 16 h before treatment with 200 mM sorbitol for 3 h.
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6

siRNA-Mediated Knockdown in Macrophages

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siRNA-mediated knockdown was performed as previously described38 (link). In brief, Raw264.7 macrophages or BMDMs were harvested and re-suspended in 90 µL of solution V (for RAW264.7 cells; Lonza) or solution for mouse macrophages (for BMDMs; Lonza). Scrambled siRNAs or siRNAs against Kxd1 or Plekhm2 (Dhamacon; 1.5 µg/reaction) were added to the cell suspension, transferred to an electroporation cuvette and nucleofected using the Amaxa Nucleofector apparatus (Amaxa Biosystems) with program D-032 (for RAW264.7 macrophages) or Y-001 (for BMDMs). At 24 h after transfection, cells were harvested and plated for assays.
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7

PBMC Isolation and NK Cell Purification

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Peripheral blood mononuclear cells (PBMCs) were enriched by density gradient centrifugation using Lymphocyte Separation Medium (Corning Life Sciences.) Cells were maintained in RPMI 1640 (Corning Life Sciences) supplemented with 10% FBS (Gibco), 100 mg/ml streptomycin (Gibco), and 100U/ml penicillin (Gibco). For some experiments, NK cells were isolated from PBMCs using NK Cell Isolation Kit (Miltenyi). In the case of NKL cell line, the medium was supplemented with 50U/ml of recombinant interleukin-2 (IL-2, Peprotech). Mouse NK cells were obtained from splenocytes, purified using NK Cell Isolation Kit II (Miltenyi) and cultured with additional 50μM of β-Mercaptoethanol, and 500U/ml of recombinant IL-2. Cells were maintained at 37°C and 5% CO2. NKL cells were electroporated with 100nM of CD3ζ siRNA or control (Dharmacon) using a nucleofector device (Lonza). Briefly, 3×106 cells were washed twice with PBS, resuspended in 100μl of Solution V (Lonza) and electroporated using the program O-017. After electroporation, cells were placed in prewarmed medium and cultured for 72h.
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8

Optimization of Protein Knockdown in Skin Cells

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NHEKs and SCC9s were electroporated with siRNA oligonucleotides at a final concentration of 10 nM via AMAXA nucleoporation (Lonza) using the Ingenio Electroporation Solution (Mirus) or solution V (Lonza) and program X-001. siRNA directed towards DSG1 (5' CCA UUA GAG AGU GGC AAU AGG AUG A), DP (Invitrogen Pool: oligonucleotides: 5’-GAA GAG AGG UGC AGG CGU A, 5’ GAC CGU CAC UGA GCU AGU A, and 5’ AAA CAG AAC GCU CCC GAU A), and COPS3 (Invitrogen Stealth siRNA_siCOPS3-465: 5’ AUC AAU GUU AUG AAG CAU GGC UGG G or Integrated DNA Technologies Pool_IDT Pool: 5’-GGA UAU CUG UAA AGA GAA UGG AGC C, 5’-GGA UGUACA AGA ACA CUC CUU GGG C, 5’-UCC AUC CUG AGC UAA ACA AGA GAA A, and Dharmacon (D-011494–03)_siCOPS3 Dharma3: 5’- UCC GAA ACC UGG UGA AUA A), NEDD8 (Dharmacon siGENOME SMARTpool (M-020081–01): 5’-GAA AGG AGA UUG AGA UUG A, 5’-AGA UUG AGA UUG ACA UUG A, 5’-CAG ACA AGG UGG AGC GAA U, 5’-GGA GAU UGA GAU UGA CAU U), and scramble/non-targeting siRNA (Dharmacon D-001206-14-20).
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