{"doi":"10.1089/154545703322617050","title":"The Apparent Uptake of Fluorescently Labeled siRNAs by Electroporated Cells Depends on the Fluorochrome","abstract":null,"journal":"Oligonucleotides","year":2003,"id":621775,"datarank":0.4943755299006494,"base_score":3.295836866004329,"endowment":3.295836866004329,"self_citation_contribution":0.4943755299006494,"citation_network_contribution":0.0,"self_endowment_contribution":0.4943755299006494,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":26,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1605807,"name":"Bettina Drescher","orcid":null,"position":1,"is_corresponding":false},{"id":1605808,"name":"Heidemarie Riehle","orcid":null,"position":2,"is_corresponding":false},{"id":1605809,"name":"Philipp Hadwiger","orcid":null,"position":3,"is_corresponding":false},{"id":817206,"name":"Bryan D. Young","orcid":"0000-0002-8264-5421","position":4,"is_corresponding":false},{"id":321909,"name":"Jürgen Krauter","orcid":null,"position":5,"is_corresponding":false},{"id":1027835,"name":"Olaf Heidenreich","orcid":"0000-0001-5404-6483","position":6,"is_corresponding":false},{"id":1605806,"name":"Jenny Dunne","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"The Apparent Uptake of Fluorescently Labeled siRNAs by Electroporated Cells Depends on the Fluorochrome","abstract":"Transfection of mammalian cells with preformed small interfering RNAs (siRNAs) permits a transient and often specific reduction of gene expression. It is possible to rapidly examine the uptake of siRNAs by transfection with fluorescently labeled siRNAs. We examined the apparent uptake of such siRNAs by several leukemic cell lines after electroporation. We show that Cy3 and Cy5-labeled siRNAs cause a significant amount of cell fluorescence, as judged by flow cytometry. In contrast, several fluorescein-labeled siRNAs could not be detected. Nevertheless, such fluoresceinated siRNAs efficiently suppressed a leukemic target gene, demonstrating that siRNA uptake must have taken place. Therefore, for cell electroporation, fluorescein-labeled siRNAs may lead to false negative results and should not be used to examine electroporation-mediated siRNA uptake.","is_dataset_classified":null,"base_score":3.295836866004329,"endowment":3.295836866004329,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"15000828","pmcid":null,"openalex_id":"https://openalex.org/W2091220084","authors":[],"funders":[],"total_grants":0,"fwci":0.9122,"citation_percentile":0.72356605,"influential_citations":0,"citation_trend":[{"year":2012,"count":1},{"year":2013,"count":1},{"year":2014,"count":3},{"year":2016,"count":2},{"year":2017,"count":1}],"oa_status":"closed","license":"http://www.liebertpub.com/nv/resources-tools/text-and-data-mining-policy/121/","oa_locations":[{"url":"http://www.liebertpub.com/doi/pdf/10.1089/154545703322617050","host_type":"publisher"},{"url":"https://doi.org/10.1089/154545703322617050","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/15000828","host_type":"repository"}],"fields_of_study":["RNA Interference and Gene Delivery","Advanced biosensing and bioanalysis techniques","Bacteriophages and microbial interactions","Base Sequence","Biological Transport","Carbocyanines","Cell Line, Tumor","Electroporation","Flow Cytometry","Fluoresceins","Fluorescent Dyes","HL-60 Cells","Humans","Leukemia","RNA, Small Interfering","Substrate Specificity","U937 Cells"],"mesh_terms":["Base Sequence","Biological Transport","Carbocyanines","Flow Cytometry","Fluoresceins","Fluorescent Dyes","Humans","Leukemia","Substrate Specificity","Electroporation","HL-60 Cells","U937 Cells","RNA, Small Interfering","Cell Line, Tumor"],"keywords":["Small interfering RNA","Electroporation","Transfection","Biology","Fluorescein","Molecular biology","Cell biology","Trans-acting siRNA","Flow cytometry","Cell","Gene silencing","Cell culture","Fluorescence","Gene","Biochemistry","Genetics"],"sdg_mappings":[],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-08-03T16:00:40.853686Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}