Distribution of miRNA expression across human tissues. Ludwig, N., Leidinger, P., Becker, K., Backes, C., Fehlmann, T., Pallasch, C., Rheinheimer, S., Meder, B., Stähler, C., Meese, E., & Keller, A. Nucleic acids research, 44(8):3865–3877, Oxford University Press (OUP), May, 2016.
doi  abstract   bibtex   
We present a human miRNA tissue atlas by determining the abundance of 1997 miRNAs in 61 tissue biopsies of different organs from two individuals collected post-mortem. One thousand three hundred sixty-four miRNAs were discovered in at least one tissue, 143 were present in each tissue. To define the distribution of miRNAs, we utilized a tissue specificity index (TSI). The majority of miRNAs (82.9%) fell in a middle TSI range i.e. were neither specific for single tissues (TSI > 0.85) nor housekeeping miRNAs (TSI < 0.5). Nonetheless, we observed many different miRNAs and miRNA families that were predominantly expressed in certain tissues. Clustering of miRNA abundances revealed that tissues like several areas of the brain clustered together. Considering -3p and -5p mature forms we observed miR-150 with different tissue specificity. Analysis of additional lung and prostate biopsies indicated that inter-organism variability was significantly lower than inter-organ variability. Tissue-specific differences between the miRNA patterns appeared not to be significantly altered by storage as shown for heart and lung tissue. MiRNAs TSI values of human tissues were significantly (P = 10(-8)) correlated with those of rats; miRNAs that were highly abundant in certain human tissues were likewise abundant in according rat tissues. We implemented a web-based repository enabling scientists to access and browse the data (https://ccb-web.cs.uni-saarland.de/tissueatlas).
@Article{Ludwig2016,
  author          = {Ludwig, Nicole and Leidinger, Petra and Becker, Kurt and Backes, Christina and Fehlmann, Tobias and Pallasch, Christian and Rheinheimer, Steffi and Meder, Benjamin and Stähler, Cord and Meese, Eckart and Keller, Andreas},
  title           = {Distribution of {miRNA} expression across human tissues},
  journal         = {Nucleic acids research},
  year            = {2016},
  volume          = {44},
  number          = {8},
  pages           = {3865--3877},
  month           = may,
  issn            = {1362-4962},
  abstract        = {We present a human miRNA tissue atlas by determining the abundance of 1997 miRNAs in 61 tissue biopsies of different organs from two individuals collected post-mortem. One thousand three hundred sixty-four miRNAs were discovered in at least one tissue, 143 were present in each tissue. To define the distribution of miRNAs, we utilized a tissue specificity index (TSI). The majority of miRNAs (82.9%) fell in a middle TSI range i.e. were neither specific for single tissues (TSI > 0.85) nor housekeeping miRNAs (TSI < 0.5). Nonetheless, we observed many different miRNAs and miRNA families that were predominantly expressed in certain tissues. Clustering of miRNA abundances revealed that tissues like several areas of the brain clustered together. Considering -3p and -5p mature forms we observed miR-150 with different tissue specificity. Analysis of additional lung and prostate biopsies indicated that inter-organism variability was significantly lower than inter-organ variability. Tissue-specific differences between the miRNA patterns appeared not to be significantly altered by storage as shown for heart and lung tissue. MiRNAs TSI values of human tissues were significantly (P = 10(-8)) correlated with those of rats; miRNAs that were highly abundant in certain human tissues were likewise abundant in according rat tissues. We implemented a web-based repository enabling scientists to access and browse the data (https://ccb-web.cs.uni-saarland.de/tissueatlas).},
  chemicals       = {MicroRNAs},
  citation-subset = {IM},
  completed       = {2017-06-05},
  country         = {England},
  doi             = {10.1093/nar/gkw116},
  issn-linking    = {0305-1048},
  issue           = {8},
  keywords        = {Adult; Aged; Animals; Databases, Nucleic Acid; Humans; Male; MicroRNAs, classification, metabolism; Organ Specificity; Rats; Reproducibility of Results; Tissue Distribution},
  nlm-id          = {0411011},
  owner           = {NLM},
  pii             = {gkw116},
  pmc             = {PMC4856985},
  pmid            = {26921406},
  publisher       = {Oxford University Press ({OUP})},
  pubmodel        = {Print-Electronic},
  pubstatus       = {ppublish},
  revised         = {2017-11-01},
}

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