Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1066840 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR27645731.fastq.gz | Fastqsanger.gz | |||
| SRR27645732.fastq.gz | Fastqsanger.gz | |||
| SRR27645733.fastq.gz | Fastqsanger.gz | |||
| SRR27645734.fastq.gz | Fastqsanger.gz | |||
| SRR27645735.fastq.gz | Fastqsanger.gz |
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Project description:Natural killer (NK) cells represent promising tools for cancer immunotherapy. We report the optimization of an NK cell activation–expansion process and its validation on clinical-scale. Activated and expanded NK cells (NKAE) were obtained by coculturing total peripheral blood mononuclear cells (PBMC) or CD45RA+ cells with irradiated K562mbIL15-41BBL or K562mbIL21-41BBL. Transcriptome profile showed to be different between basal NK cells and NKAE cells expanded with K562mbIL21-41BBL or K562mbIL15-41BBL
2021-02-16 | GSE165849 | GEO
Project description:Natural Killer cells (NK), a major constituent of innate immune system, have the ability to kill the transformed and infected cells without prior sensitization; can be put to immunotherapeutic use against various malignancies. NK cells discriminate between normal cells and transformed cells via a balance of inhibitory and activating signals induced by interactions between NK cell receptors and target cell ligands. Present study investigates whether expansion of NK cells could augment their anti-myeloma (MM) activity. For NK cell expansion, peripheral blood mononuclear cells from healthy donors and myeloma patients were co-cultured with irradiated K562 cells transfected with 4-1BBL and membrane-bound IL15 (K562-mb15-41BBL). A genome-wide profiling approach was performed to identify gene expression signature in expanded NK (ENK) cells and non-expanded NK cells isolated from healthy donors and myeloma patients. A specific set of genes involved in proliferation, migration, adhesion, cytotoxicity, and activation were up regulated post expansion, also confirmed by flow cytometry. Exp-NK cells killed both allogeneic and autologous primary MM cells more avidly than non-exp-NK cells in vitro. Multiple receptors, particularly NKG2D, natural cytotoxicity receptors, and DNAM-1 contributed to target lysis, via a perforin mediated mechanism. In summary, vigorous expansion and high anti-MM activity both in vitro and in vivo provide the rationale for testing exp-NK cells in a clinical trial for high risk MM. Differential gene expression profile in expanded natural killer (ENK) cells and non-expanded natural killer (NK) cells from healthy donors and myeloma patients Eight healthy donor and eight myeloma patients were used in the study. Non-expanded natural killer (NK) cells were isolated from PBMCs of healthy donors and myeloma patients. Expanded natural killer (ENK) cells were generated from same set of samples as mentioned in expansion protocol. All ENK and NK cells were used for gene expression profiling.
2011-03-08 | E-GEOD-27838 | biostudies-arrayexpress
Project description:A study of immunotherapy with expanded CB-NK cells in combination with cetuximab, to evaluate activity against minimal residual disease in patients with colon cancer that have completed adjuvant treatment but are positive for ctDNA
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Project description:Constitutively found at high frequencies, the role for NK cell proliferation remains unclear. Here, a shift in NK cell function from predominantly producing interferon-? (IFN-?), a cytokine with proinflammatory and antimicrobial functions, to producing the immunoregulatory cytokine IL-10, is defined during extended murine cytomegalovirus infection. The NK cells driven to express IL-10 in vivo acquired responsiveness to IL-12 and IL-21 for IL-10 production, but neither cytokine was required for the endogenous response. In vitro studies with IL-2 to support proliferation and in vivo adoptive transfers into murine cytomegalovirus-infected mice demonstrated that NK cell proliferation and further division enhanced the change. During infection, the responding NK cells acquired histone modifications indicative of an open IL-10 gene, and an IL-10 response was proliferation dependent ex vivo if the NK cells had not yet expanded in vivo but independent if they had. Thus, a novel role for proliferation in supporting changing innate cell function is discovered. The chromatin status of ex vivo isolated NK cells during MCMV infection was investigated by ChIP-seq on histone epigenetic marks (H3K4m3, H3K27m3, H3K36m3) on day 0, day 1.5 and day 3.5 post infection.
2014-08-05 | E-GEOD-55834 | biostudies-arrayexpress
Project description:Natural Killer cells (NK), a major constituent of innate immune system, have the ability to kill the transformed and infected cells without prior sensitization; can be put to immunotherapeutic use against various malignancies. NK cells discriminate between normal cells and transformed cells via a balance of inhibitory and activating signals induced by interactions between NK cell receptors and target cell ligands. Present study investigates whether expansion of NK cells could augment their anti-myeloma (MM) activity. For NK cell expansion, peripheral blood mononuclear cells from healthy donors and myeloma patients were co-cultured with irradiated K562 cells transfected with 4-1BBL and membrane-bound IL15 (K562-mb15-41BBL). A genome-wide profiling approach was performed to identify gene expression signature in expanded NK (ENK) cells and non-expanded NK cells isolated from healthy donors and myeloma patients. A specific set of genes involved in proliferation, migration, adhesion, cytotoxicity, and activation were up regulated post expansion, also confirmed by flow cytometry. Exp-NK cells killed both allogeneic and autologous primary MM cells more avidly than non-exp-NK cells in vitro. Multiple receptors, particularly NKG2D, natural cytotoxicity receptors, and DNAM-1 contributed to target lysis, via a perforin mediated mechanism. In summary, vigorous expansion and high anti-MM activity both in vitro and in vivo provide the rationale for testing exp-NK cells in a clinical trial for high risk MM. Differential gene expression profile in expanded natural killer (ENK) cells and non-expanded natural killer (NK) cells from healthy donors and myeloma patients
2011-03-08 | GSE27838 | GEO
Project description:Ex vivo activation and expansion of natural killer (NK) cells is a strategy to produce sufficient numbers of these effector cells for adoptive immunotherapy. Therefore we aimed at the development of an automated, clinical scale NK cell expansion process and compared NK cells after manual and automated expansion.We found only a small subset of 124 genes that significantly varied between both sample groups. These genes were associated with movement of leukocytes were identified including a group of genes for NK cell movement (CMKLR1, CX3CR1, S1PR5, GNLY and CXCR1) which were slightly higher expressed after automated compared to manual expansion. Nevertheless, the expansion profiles of NK cells after automated or manual expansion were rather similar in comparison to the remarkable difference between primary and expanded NK cells in general represented by the vast majority of regulated genes between the analyzed sample groups. Pathway analysis revealed that most of regulated genes upon expansion were associated with cell cycle regulation, DNA replication, DNA recombination and DNA repair, regulation of apoptosis and cell survival as well as cytokine signaling. Furthermore, the expression of many NK cell relevant markers was changed upon expansion with the strongest effects on up regulation of TRAIL and FASL, inhibitory TIGIT and chemokine receptors CCR2, CCR5 and CXCR6. In addition, granzyme M was down regulated but other important effector molecules like TNFa, perforin and granzymes A, B and K were up regulated. In summary we could show that manual and automatically expanded NK cells show a similar expansion profile while the differ significantly from primary NK cells. Up regulation of many NK cell relevant markers indicate for an enhanced NK cell functionaility after ex vivo activation and expansion. 24 samples were analyzed in total. 6 biological replicates represented by cells from different donors. 4 different samples per donor: freshly isolated NK cells (d0) and NK cells expanded for 14 days under 3 different conditions: in co-culture with EBV-LCL feeder cells and 500 U/mL IL2 either cultivated manually in T75 flasks (T) or automatically using the CliniMACS Prodigy system (P); NK cells cultured with 500 U/ml IL2 without feeder cells (I)
2015-04-23 | E-GEOD-62654 | biostudies-arrayexpress
Project description:A comparison of the transcriptional profiles of resting NK cells and ex vivo expanded NK cells
| PRJNA923288 | ENA
Project description:NK cells are cytotoxic lymphocytes that play an important role in the innate immune response. The immune response of NK cells was shown under activated conditions. In order to identify such patterns, we performed RNA sequencing to confirm the gene expression profiles in NK cells expanded ex vivo compared to that of resting NK cells.
2023-05-17 | GSE222740 | GEO
Project description:Genome editing human NK cells expanded from human peripheral blood.
2023-05-02 | GSE229085 | GEO