Single-cell analysis reveals corticosteroid-associated impairment of tumor-infiltrating NK cells in glioblastoma patients.
The 6 matches
- [1] § Methods › Cytotoxicity and inflammatory gene set analysis ↔ Notebooks ipynb/Figures.ipynb, lines 340–358 · score 0.92 · IL1B, score genes, CCL2, CCL5, CTSW, CXCL10
- [2] § Results › Perioperative corticosteroid treatment was associated with variations in the intratumoral distribution of NK cell subsets in gliomas ↔ Notebooks ipynb/Figures.ipynb, lines 138–153 · score 0.86 · CD3E, CD3D, CD3G, IL2RB, FCGR3A, TRGC1
- [3] § Methods › scRNA-seq data processing ↔ Notebooks ipynb/Figures.ipynb, lines 66–83 · score 0.76 · Highly variable genes, seurat_v3, ARPACK, Raw, PCA, Scanpy
- [4] § Methods › Functional enrichment analysis ↔ Notebooks ipynb/Figures.ipynb, lines 241–329 · score 0.64 · Pathway enrichment, databases, GO, KEGG, Ontology, enriched
- [5] § Results › Perioperative corticosteroid treatment was associated with variations in the intratumoral distribution of NK cell subsets in gliomas ↔ Notebooks ipynb/Supplementary Figures.ipynb, lines 58–72 · score 0.63 · CD3D, CD3G, FCGR3A, NCAM1, genes
- [6] § Results › Corticosteroid-associated transcriptional changes were detectable in all sub-clusters of glioma-infiltrating NK cells ↔ Notebooks ipynb/Figures.ipynb, lines 155–180 · score 0.52 · CX3CR1, NKG7, CD160, GZMB, CCL4, XCL1
Paper
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The authors' code
Jupyter notebook · 380 lines · 12 KB · no license · 5 matches
- # %% [markdown]
- # # <font color = '#FF003D'> **Glioblastoma scRNA-seq project**
- # %%
- import os
- import math
- import warnings
- import numpy as np #version 1.26.4
- import scipy #version 1.15.2
- import pandas as pd #version 2.2.3
- import anndata as ad #version 0.11.3
- import scanpy as sc #version 1.11.0
- import scanpy.external as sce
- from cycler import cycler
- import openpyxl #version 3.1.5
- import seaborn as sns #version 0.13.2
- import matplotlib #version 3.7.4
- import matplotlib.pyplot as plt
- import rpy2 #version 3.5.11
- sc.settings.verbosity = 4
- pd.set_option("display.max_columns", None)
- warnings.filterwarnings('ignore')
- sc.set_figure_params(dpi = 80, dpi_save = 1000, facecolor = 'white')
- # %% [markdown]
- #
- # %% [markdown]
- # # **Reclustering of NK cells from total**
- # %%
- outfilename = os.path.join(data_folder, "Totale_WTandHealthy.h5ad")
- adata = sc.read_h5ad(outfilename)
- adata.obs['Treatment'] = adata.obs['sample'].map({
- "S21225_Lib_BS_03":"Dex-treated",
- "S21227_Lib_BS_06":"Dex-treated",
- "S21228_Lib_BS_07":"Untreated",
- "S21230_Lib_BS_09":"Untreated",
- "S21231_Lib_BS_S10":"Healthy",
- "S21232_Lib_BS_T10":"Untreated",
- "S21233_Lib_BS_S11" : "Healthy"})
- # %%
- recNK = adata[adata.obs['res_1.5'].isin(['12'])].copy()
- obs = ['res_0.5', 'res_0.8', 'res_1.0', 'res_1.5', 'res_2.0']
- var = ['highly_variable', 'highly_variable_rank', 'means', 'variances', 'variances_norm', 'highly_variable_nbatches']
- for obs in obs:
- del recNK.obs[obs]
- for var in var:
- del recNK.var[var]
- del recNK.uns
- del recNK.obsm
- del recNK.varm
- del recNK.obsp
- # %%
- sc.pp.highly_variable_genes(recNK,
- n_top_genes = 4000,
- flavor= 'seurat_v3',
- layer = "raw_counts",
- subset = False)
- sc.tl.pca(recNK,
- svd_solver = 'arpack',
- use_highly_variable = True,
- n_comps = 50)
- sc.pl.pca_variance_ratio(recNK,
- log = True)
- sce.pp.harmony_integrate(recNK,
- 'sample',
- max_iter_harmony = 100)
- # %%
- sc.pp.neighbors(recNK,
- n_neighbors = 15,
- n_pcs = 30,
- use_rep = "X_pca_harmony",
- key_added = "Harmony")
- sc.tl.umap(recNK,
- neighbors_key = "Harmony")
- clustering_labels = []
- for res in [0.5, 0.8, 1.0]:
- clustering_labels.append("res_{}".format(res))
- if "res_{}".format(res) in recNK.obs:
- print("res_{}".format(res) + " already exists... going on with next resolution.")
- continue
- sc.tl.leiden(recNK,
- resolution = res,
- key_added = "res_{}".format(res),
- neighbors_key = "Harmony")
- sc.pl.umap(recNK,
- color = clustering_labels,
- legend_loc = 'on data',
- legend_fontsize = 10,
- legend_fontoutline = 3,
- frameon = True,
- ncols = 5)
- # %%
- outfilename = os.path.join(data_folder, "reclustering_NKcells.h5ad")
- print("Saving h5ad data to file {}".format(outfilename))
- recNK.write(outfilename)
- print("Done!")
- # %% [markdown]
- # # **Figure 1**
- # %%
- outfilename = os.path.join(data_folder, "reclustering_NKcells.h5ad")
- recNK = sc.read_h5ad(outfilename)
- # %%
- sc.pl.umap(recNK,
- color = 'res_0.8',
- na_in_legend = False,
- legend_loc = 'on data',
- legend_fontsize = 10,
- legend_fontoutline = 3,
- frameon = True,
- title = "",
- save = 'Figure 1A.png')
- # %%
- sc.tl.dendrogram(recNK,
- 'res_0.8',
- use_rep = "X_pca_harmony")
- Annotation = ["CD3D", "CD3G", 'CD3E', 'TRGC1', 'TRGC2',
- 'NCAM1', 'CD44', 'XCL1', 'XCL2', 'GZMK', 'IL2RB', 'IRF8', 'KLRC1', 'KLRC2', 'NCR1', 'KIR2DL4', 'ZNF683', 'EOMES', 'CD2', 'PRDM1',
- 'FCGR3A', 'GNLY', 'PRF1', 'GZMA', 'GZMB', 'GZMM', 'NCR3']
- sc.pl.dotplot(recNK,
- Annotation,
- 'res_0.8',
- standard_scale = 'var',
- swap_axes = False,
- dendrogram = True,
- save = "Figure 1B.png")
- # %%
- recNK = recNK[~recNK.obs['res_0.8'].isin(['4'])].copy()
- signatures = {
- 'NK1' : ['CD160', 'CTSD', 'CCL4', 'ADGRG1', 'CD38', 'CD247', 'CHST2', 'CX3CR1', 'KLRB1', 'LAIR2', 'IGFBP7', 'AKR1C3', 'FGFBP2', 'MYOM2', 'CLIC3', 'GZMB', 'PRF1', 'FCER1G', 'NKG7', 'SPON2'],
- 'NK2' : ['LTB', 'FOS', 'IL2RB', 'IFITM3', 'COTL1', 'IL7R', 'PIK3R1', 'AREG', 'ZFP36L2', 'DUSP2', 'CD44', 'SELL', 'GPR183', 'CMC1', 'KLRC1', 'TCF7', 'TPT1', 'XCL2', 'XCL1', 'GZMK']
- }
- for signature_name, genes in signatures.items():
- sc.tl.score_genes(recNK,
- genes,
- ctrl_size = 25,
- gene_pool = None,
- random_state = 0,
- score_name = f"{signature_name}_Score",
- copy = False)
- scores = ["NK1_Score", "NK2_Score"]
- for score in scores:
- sc.pl.umap(recNK,
- color = score,
- frameon = True,
- vmin = 0,
- color_map = 'inferno',
- save = f"Figure 1C - {score}.png")
- # %%
- recNK = recNK[~recNK.obs['res_0.8'].isin(['4'])].copy()
- sc.tl.embedding_density(recNK,
- basis = 'umap',
- groupby = 'Treatment')
- sc.pl.embedding_density(recNK,
- basis = 'umap',
- key = 'umap_density_Treatment',
- color_map = 'Reds',
- title = '',
- bg_dotsize = 0,
- fg_dotsize = 500
- save = 'Figure 1D (up).png')
- # %% [markdown]
- # # **Figure 2**
- # %%
- outfilename = os.path.join(data_folder, "reclustering_NKcells.h5ad")
- recNK = sc.read_h5ad(outfilename)
- # %%
- sub2 = recNK[recNK.obs['res_0.8'].isin(['2'])].copy()
- sc.tl.rank_genes_groups(sub2,
- 'Treatment',
- method = "wilcoxon",
- key_added = 'rank_genes',
- groups = ['Dex-treated'],
- reference = 'Untreated',
- use_raw = False,
- pts = True)
- DEGs = sc.get.rank_genes_groups_df(sub2,
- group = None,
- key = 'rank_genes')
- DEGs.to_excel('DEGs c2 - Dex-treated (up) vs Untreated (down).xlsx',
- index = True)
- # %%
- sub2_Universe = pd.DataFrame(sub2.var_names,
- columns = ["gene_ids"])
- sub2_Universe.to_excel("figures/sub2_Universe.xlsx",
- index = True)
- # %%
- %load_ext rpy2.ipython
- # %%
- %%R
- library(dbplyr) #version 2.3.4
- library(biomaRt)
- library(clusterProfiler)
- library(org.Hs.eg.db)
- # %%
- %%R
- DEGs = read.xlsx("figures/DEGs c2 - Dex-treated (up) vs Untreated (down).xlsx")
- universe = read.xlsx("figures/sub2_Universe.xlsx",
- colNames = F)
- # Settings
- thr_deg = 0.05
- thr_pvalue = 0.05
- thr_qvalue = 0.05
- # Convert hugo symbols to gene ids (nomi a numeri)
- mart = useEnsembl(biomart = "ensembl",
- dataset = "hsapiens_gene_ensembl")
- G_list = getBM(filters = "hgnc_symbol",
- attributes = c("hgnc_symbol", "entrezgene_id"),
- values = as.character(universe[,1]),
- mart = mart,
- useCache = FALSE)
- genes_id_mapping = G_list
- invalid_hgnc_symbol = sort(unique(genes_id_mapping[which(duplicated(genes_id_mapping$hgnc_symbol)), "hgnc_symbol"]))
- invalid_entrezgene_id = sort(unique(genes_id_mapping[which(duplicated(genes_id_mapping$entrezgene_id)), "entrezgene_id"]))
- invalid = which(genes_id_mapping$hgnc_symbol %in% invalid_hgnc_symbol | genes_id_mapping$entrezgene_id %in% invalid_entrezgene_id | is.na(genes_id_mapping$hgnc_symbol) | is.na(genes_id_mapping$entrezgene_id))
- if (length(invalid) > 0) {
- genes_id_mapping = genes_id_mapping[-invalid,]
- }
- rownames(genes_id_mapping) = 1:nrow(genes_id_mapping)
- background_set = as.character(sort(unique(genes_id_mapping$entrezgene_id)))
- # Functional analysis
- data = DEGs[which(DEGs$genes %in% genes_id_mapping$hgnc_symbol),]
- all_pathway_enrichment = NULL
- for (dg in sort(unique(data$Cluster))) {
- curr_res = data[which(data$Cluster == dg),,drop = FALSE]
- enrichment_set = as.character(sort(unique(genes_id_mapping$entrezgene_id[which(genes_id_mapping$hgnc_symbol %in% curr_res$genes)])))
- # perform pathway enrichment analysis
- pathway_enrichment = NULL
- pathway_enrichment_GO = enrichGO(gene = enrichment_set, OrgDb = org.Hs.eg.db, keyType = "ENTREZID", ont = "ALL", pvalueCutoff = thr_pvalue, pAdjustMethod = "fdr", universe = background_set, qvalueCutoff = thr_qvalue, minGSSize = 10, maxGSSize = 500, readable = FALSE, pool = TRUE)
- if (nrow(pathway_enrichment_GO) > 0) {
- pathway_enrichment_GO = as.data.frame(pathway_enrichment_GO)
- pathway_enrichment_GO$Database = paste0("GO",pathway_enrichment_GO$ONTOLOGY)
- pathway_enrichment_GO$ONTOLOGY = NULL
- pathway_enrichment = rbind(pathway_enrichment, pathway_enrichment_GO)
- }
- pathway_enrichment_kegg = enrichKEGG(gene = enrichment_set, organism = "hsa", keyType = "kegg", pvalueCutoff = thr_pvalue, pAdjustMethod = "fdr", universe = background_set, minGSSize = 10, maxGSSize = 500, qvalueCutoff = thr_qvalue, use_internal_data = FALSE)
- if (nrow(pathway_enrichment_kegg) > 0) {
- pathway_enrichment_kegg = as.data.frame(pathway_enrichment_kegg)
- pathway_enrichment_kegg$Database = "KEGG"
- pathway_enrichment = rbind(pathway_enrichment,pathway_enrichment_kegg)
- }
- if (!is.null(pathway_enrichment) && nrow(pathway_enrichment) > 0) {
- pathway_enrichment = data.frame(pathway_enrichment, check.rows = FALSE, stringsAsFactors = FALSE)
- pathway_enrichment = unique(pathway_enrichment[order(pathway_enrichment$Description),])
- genes_hugo = pathway_enrichment$geneID
- for (i in 1:length(genes_hugo)) {
- curr_hugo = NULL
- for (j in strsplit(genes_hugo[i], split = "\\/")[[1]]) {
- curr_hugo = c(curr_hugo, genes_id_mapping$hgnc_symbol[which(genes_id_mapping$entrezgene_id == j)])
- }
- genes_hugo[i] = paste0(sort(unique(curr_hugo)), collapse = "/")
- }
- pathway_enrichment$geneName = genes_hugo
- pathway_enrichment = pathway_enrichment[,c("ID", "Description", "geneName", "pvalue", "p.adjust", "qvalue", "GeneRatio", "BgRatio", "geneID", "Count", "Database")]
- pathway_enrichment = unique(pathway_enrichment)
- rownames(pathway_enrichment) = 1:nrow(pathway_enrichment)
- # save results
- if (!is.null(pathway_enrichment) && nrow(pathway_enrichment) > 0) {
- pathway_enrichment = pathway_enrichment[,c("ID", "Description", "geneName", "pvalue", "p.adjust", "qvalue", "GeneRatio", "BgRatio", "Count", "Database")]
- pathway_enrichment$Configuration = "Bright c2"
- pathway_enrichment$cluster = dg
- all_pathway_enrichment = rbind(all_pathway_enrichment, pathway_enrichment)
- }
- }
- }
- pathway_enrichment = all_pathway_enrichment
- rownames(pathway_enrichment) = 1:nrow(pathway_enrichment)
- Bright_c2_pathways = pathway_enrichment
- write.xlsx(Bright_c2_pathways,
- "figures/Bright_c2_pathways.xlsx",
- sheetName = "Bright c2",
- append = FALSE,
- rowNames = FALSE)
- # %% [markdown]
- # # **Figure 3**
- # %%
- outfilename = os.path.join(data_folder, "reclustering_NKcells.h5ad")
- recNK = sc.read_h5ad(outfilename)
- recNK = recNK[~recNK.obs['res_0.8'].isin(['4'])].copy()
- # %%
- #Figures 3A and 3B
- signatures = {
- Cytotoxicity : ['GZMA', 'GZMB', 'GZMH', 'GZMM', 'GZMK', 'GNLY', 'PRF1', 'CTSW'],
- Inflammatory : ['CCL2', 'CCL3', 'CCL4', 'CCL5', 'CXCL10', 'CXCL9', 'IL1B', 'IL6', 'IL7', 'IL15', 'IL18']
- }
- for signature_name, genes in signatures.items():
- sc.tl.score_genes(recNK,
- genes,
- ctrl_size = 25,
- gene_pool = None,
- random_state = 0,
- score_name = f"{signature_name}_Score",
- copy = False)
- df = recNK[['res_0.8', 'Treatment', "Cytotoxicity_Score", "Inflammatory_Score"]]
- df.to_excel('figures/NK cells – Scores.xlsx', index = True)
- # %%
- #Figures 3C and 3D
- recNK = recNK[~recNK.obs['res_0.8'].isin(['4'])].copy()
- cluster_list = ['0', '1', '2', '3', '5']
- for cl in cluster_list:
- clust = recNK[recNK.obs['res_0.8'] == cl].copy()
- gene_ids = clust.var.index.values
- clusters = clust.obs['Treatment']
- obs = clust[:, gene_ids].X.toarray()
- obs = pd.DataFrame(obs,
- columns = gene_ids,
- index = clusters)
- outfile = f'figures/Matrix expression x Treatment - {clust}.xlsx'
- obs.T.to_excel(outfile, index = True)
- # %%
Figures.ipynb at commit 9115b1f, no license · at the source
Overview
- Unit of Clinical and Experimental Immunology, IRCCS Humanitas Research Hospital,Rozzano, Milan Italy
- Unit of Clinical and Experimental Immunology, Department of Medical Biotechnology and Translational Medicine, University of Milan,via Fratelli Cervi 93, Segrate, 20054 Milan Italy
- Fondazione Human Technopole,Milan, Italy
- Department of Biomedical Sciences, Humanitas University,Pieve Emanuele, Milan, Italy
- Department of Medical Oncology and Hematology, IRCCS Humanitas Research Hospital,Rozzano, Milan Italy
- Unit of Oncological Neurosurgery, IRCCS Istituto Ortopedico Galeazzi,Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan,Milan, Italy
- Department of Neurosurgery, IRCCS Humanitas Research Hospital,Rozzano, Milan Italy
- Laboratory of Leukocyte Biology, Department of Medical Biotechnology and Translational Medicine, University of Milan,Segrate, Milan Italy
- Laboratory of Leukocyte Biology, IRCCS Humanitas Research Hospital,Rozzano, Milan Italy
Abstract
Glioblastoma is the most common and aggressive malignant primary brain tumor in adults, characterized by poor prognosis and limited response to current therapeutic strategies. Corticosteroids, particularly dexamethasone, are widely used in clinical practice to control symptomatic peritumoral edema, yet they exert profound immunosuppressive effects whose impact on tumor-infiltrating NK cells remains poorly defined. To address this issue, we analyzed a publicly available single-cell RNA sequencing dataset of CD45⁺ cells isolated from five IDH-wildtype glioblastomas, including two patients undergoing perioperative dexamethasone treatment and three untreated patients, alongside two non-tumor brain samples. Our results suggested that perioperative dexamethasone exposure was associated with a reshaped intratumoral NK cell landscape, characterized by a relative enrichment of CD56bright subsets. Perioperative corticosteroid treatment was also associated with transcriptional features consistent with impaired NK cell effector programs, as evidenced by reduced cytotoxicity and inflammation scores, down-regulation of granzymes, perforin, pro-inflammatory cytokines, and activating receptors, and concomitant upregulation of inhibitory molecules. Gene set enrichment analysis further demonstrated strong downregulation of NK cell-mediated cytotoxicity and cell-killing pathways. Together with previous evidence of corticosteroid-associate
Supplementary Information: The online version contains supplementary material available at 10.1038/
Reproduced under the paper's license (CC BY), from the paper cited above.
Repository
Its files are read in the Code ↔ Paper reader above, with 6 matches between paragraphs and lines of code.
pmarzano97/GBM
9115b1f683420a7d311c25dbea6fc7c88f744ea8, 2 December 2025Availability: 1 check, the latest on 28 September 2026: the link answers
- 28 September 2026: the link answers
4 files
- Notebooks ipynb/
Figure 1E_Milopy.ipynb , Jupyter, 101 lines - Notebooks ipynb/
Figures.ipynb , Jupyter, 380 lines, 5 matches - Notebooks ipynb/
Supplementary Figures.ipynb , Jupyter, 144 lines, 1 match - README.md, Text, 6 lines
The paper's code and data availability statement is in the Data section.
Tracing map
Proposed by the machine: these links were found in the paper and verified at the source, without human review. The map will receive a Zenodo DOI once one of the paper's authors has validated it with their ORCID.
What the map holds:
- 1 repository of the authors' code, each at its verified commit, with its license and how the link was found in the paper;
- 3 scripts, each with its path and the digest of its content;
- 6 matches between paragraphs of the paper and lines of the code (method lexical-v1);
- neither the text of the paper nor the code itself.
Its JSON (tracing-map.json) is deposited on Zenodo with its DOI once the map is validated.
Data
Datasets cited
- zenodo:6046299, at Zenodo; found in the text, “scRNA-seq data processing”
Data availability
scRNA data were downloaded from the Zenodo Repository (RRID:SCR\_004129) where raw data are available upon request. All the codes used for data processing and analysis are available in a public GitHub repository (https://
Reproduced under the paper's license (CC BY), from the paper cited above.
Versions
The history of this record: each version stored by the harvester or made by a correction of its authors or of the maintainers of its code, and what changed in its facts. The texts of the paper (its abstract, its availability statements) are not part of it; versions that changed only those are not listed.
Version 2, 28 September 2026
- Funding: added Università degli Studi di Milano; Ministero della Salute; Humanitas Research Hospital
Version 1, 28 September 2026: the first record
Recorded: type, language, journal, volume, issue, pages, dates, 14 authors, 8 keywords, 11 MeSH terms, 40 references, 11 RRIDs.
Cite
This paper
Balin, S., Marzano, P., Limonta, A., Terzoli, S., Simonelli, M., Bello, L., Pessina, F., Savino, B., Mikulak, J., Calcaterra, F., Fontana, E., Locati, M., Mavilio, D., & Della Bella, S. (2026). Single-cell analysis reveals corticosteroid-associate
BibTeX
@article{balin2026single
author = {Balin, Simone and Marzano, Paolo and Limonta, Alessandro and Terzoli, Sara and Simonelli, Matteo and Bello, Lorenzo and Pessina, Federico and Savino, Benedetta and Mikulak, Joanna and Calcaterra, Francesca and Fontana, Elena and Locati, Massimo and Mavilio, Domenico and Della Bella, Silvia},
title = {{Single-cell analysis reveals corticosteroid-associate
journal = {Scientific reports},
year = {2026},
month = may,
volume = {16},
number = {1},
pages = {26614},
publisher = {Nature Publishing Group},
issn = {2045-2322},
doi = {10.1038/
url = {https://
pmid = {42168437},
pmcid = {PMC13503855}
}
RIS
TY - JOUR
AU - Balin, Simone
AU - Marzano, Paolo
AU - Limonta, Alessandro
AU - Terzoli, Sara
AU - Simonelli, Matteo
AU - Bello, Lorenzo
AU - Pessina, Federico
AU - Savino, Benedetta
AU - Mikulak, Joanna
AU - Calcaterra, Francesca
AU - Fontana, Elena
AU - Locati, Massimo
AU - Mavilio, Domenico
AU - Della Bella, Silvia
TI - Single-cell analysis reveals corticosteroid-associate
T2 - Scientific reports
J2 - Sci Rep
PY - 2026
DA - 2026/
VL - 16
IS - 1
SP - 26614
SN - 2045-2322
PB - Nature Publishing Group
DO - 10.1038/
UR - https://
LA - en
ER -
CSL-JSON
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"id": "10.1038/
"type": "article-journal",
"title": "Single-cell analysis reveals corticosteroid-associate
"container-title": "Scientific reports",
"author": [
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"family": "Balin",
"given": "Simone"
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"family": "Marzano",
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{
"family": "Terzoli",
"given": "Sara"
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{
"family": "Simonelli",
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},
{
"family": "Bello",
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},
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"family": "Pessina",
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{
"family": "Savino",
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},
{
"family": "Mikulak",
"given": "Joanna"
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{
"family": "Calcaterra",
"given": "Francesca"
},
{
"family": "Fontana",
"given": "Elena"
},
{
"family": "Locati",
"given": "Massimo"
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{
"family": "Mavilio",
"given": "Domenico"
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{
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"given": "Silvia"
}
],
"container-title-short":
"volume": "16",
"issue": "1",
"page": "26614",
"DOI": "10.1038/
"PMID": "42168437",
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"ISSN": "2045-2322",
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"URL": "https://
"language": "en",
"issued": {
"date-parts": [
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}
}
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