|
| Status |
Public on May 01, 2022 |
| Title |
NSCLC Plasma_Exo-miRNA_rep 1 [1000270] |
| Sample type |
RNA |
| |
|
| Source name |
NSCLC Plasma exosomes
|
| Organism |
Homo sapiens |
| Characteristics |
tissue: plasma exosomes
patient diagnosis: NSCLC
age: 82
histotype: Scc
Stage: IB
gender: male
treatment: Resection
event (pd): yes
dfs (months): 35
death: yes
os (months): 93
|
| Extracted molecule |
total RNA |
| Extraction protocol |
Exosomal total RNA samples were purified from 0.5 mL of plasma using the exoRNeasy Serum/Plasma Midi kit (Qiagen, Hilden, Germany) according to manufacturer instructions.
|
| Label |
Cyanine 3-pCp
|
| Label protocol |
Exosomal total RNA samples were processed using the Agilent miRNA complete labeling and hybridization kit (part number 5190-0456) and Agilent miRNA spike-in kit (part number 5190-1934). The Agilent miRNA microarray system was followed except 8 μL of purified total RNA samples at unknown concentration were used as input amount, instead of the recommended 100 ng of total RNA.
|
| |
|
| Hybridization protocol |
After adding Hyb Spike-In, each sample was hybridized at 55°C for 20 hours on G4872A-070156 Human miRNA Microarray, Release 21.0, 8 x 60K (Agilent Technologies). The supplement of a commercial synthetic DNA poly-A oligonucleotide 3’ labeled pCp-Cy3, was added to the final hybridization mix. The 30-mer synthetic oligonucleotide (HPLC purified) was synthesized by TIB Molbiol s.r.l. (Genova, Italy). The lyophilized oligonucleotide was resuspended at a final concentration of 100 pmol/μL. Before use, an aliquot was taken and through serial dilutions brought to two final concentrations of 50 and 5 amol/μL.
|
| Scan protocol |
Microarrays were scanned (3 microns, 20 bit) on an Agilent microarray scanner (part number G2505C) and data extracted using Agilent feature extraction v.12.0.0.7. QC metrics from feature extraction were used to evaluate the success of the labeling and hybridization.
|
| Description |
miRNA profiling
|
| Data processing |
Pre-processing, filtering and differential expression analysis were carried out using the Limma package, available within Bioconductor. Background correction and between array normalization were carried out using the normexp method, with an offset = 20, and the scale method, respectively. Replicated probes were then averaged.
|
| |
|
| Submission date |
Mar 18, 2022 |
| Last update date |
May 01, 2022 |
| Contact name |
simona coco |
| E-mail(s) |
[email protected], [email protected]
|
| Phone |
+390105558316
|
| Organization name |
IRCCS Ospedale Policlinico San Martino
|
| Lab |
Lung Cancer Unit
|
| Street address |
L.go R. Benzi, 10
|
| City |
Genova |
| ZIP/Postal code |
16132 |
| Country |
Italy |
| |
|
| Platform ID |
GPL21576 |
| Series (2) |
| GSE198958 |
A circulating risk score, based on combination of exo-miR130a-3p and fibrinopeptide A, as predictive biomarker of relapse in early stage non-small cell lung cancer patients [miRNA] |
| GSE198959 |
A circulating risk score, based on combination of exo-miR130a-3p and fibrinopeptide A, as predictive biomarker of relapse in early stage non-small cell lung cancer patients |
|
