TY  - JOUR
A1  - Ferber, Elena
A1  - Gerhards, Julian
A1  - Sauer, Miriam
A1  - Krischke, Markus
A1  - Dittrich, Marcus T.
A1  - Müller, Tobias
A1  - Berger, Susanne
A1  - Fekete, Agnes
A1  - Mueller, Martin J.
T1  - Chemical Priming by Isothiocyanates Protects Against Intoxication by Products of the Mustard Oil Bomb
JF  - Frontiers in Plant Science
N2  - In Brassicaceae, tissue damage triggers the mustard oil bomb i.e., activates the degradation of glucosinolates by myrosinases leading to a rapid accumulation of isothiocyanates at the site of damage. Isothiocyanates are reactive electrophilic species (RES) known to covalently bind to thiols in proteins and glutathione, a process that is not only toxic to herbivores and microbes but can also cause cell death of healthy plant tissues. Previously, it has been shown that subtoxic isothiocyanate concentrations can induce transcriptional reprogramming in intact plant cells. Glutathione depletion by RES leading to breakdown of the redox potential has been proposed as a central and common RES signal transduction mechanism. Using transcriptome analyses, we show that after exposure of Arabidopsis seedlings (grown in liquid culture) to subtoxic concentrations of sulforaphane hundreds of genes were regulated without depletion of the cellular glutathione pool. Heat shock genes were among the most highly up-regulated genes and this response was found to be dependent on the canonical heat shock factors A1 (HSFA1). HSFA1-deficient plants were more sensitive to isothiocyanates than wild type plants. Moreover, pretreatment of Arabidopsis seedlings with subtoxic concentrations of isothiocyanates increased resistance against exposure to toxic levels of isothiocyanates and, hence, may reduce the autotoxicity of the mustard oil bomb by inducing cell protection mechanisms.
KW  - autotoxicity
KW  - heat shock response
KW  - isothiocyanates
KW  - mustard oil bomb
KW  - reactive electrophilic species
KW  - redox homeostasis
KW  - sulforaphane
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-207104
SN  - 1664-462X
VL  - 11
ER  - 
TY  - JOUR
A1  - Doll, Julia
A1  - Vona, Barbara
A1  - Schnapp, Linda
A1  - Rüschendorf, Franz
A1  - Khan, Imran
A1  - Khan, Saadullah
A1  - Muhammad, Noor
A1  - Alam Khan, Sher
A1  - Nawaz, Hamed
A1  - Khan, Ajmal
A1  - Ahmad, Naseer
A1  - Kolb, Susanne M.
A1  - Kühlewein, Laura
A1  - Labonne, Jonathan D. J.
A1  - Layman, Lawrence C.
A1  - Hofrichter, Michaela A. H.
A1  - Röder, Tabea
A1  - Dittrich, Marcus
A1  - Müller, Tobias
A1  - Graves, Tyler D.
A1  - Kong, Il-Keun
A1  - Nanda, Indrajit
A1  - Kim, Hyung-Goo
A1  - Haaf, Thomas
T1  - Genetic Spectrum of Syndromic and Non-Syndromic Hearing Loss in Pakistani Families
JF  - Genes
N2  - The current molecular genetic diagnostic rates for hereditary hearing loss (HL) vary considerably according to the population background. Pakistan and other countries with high rates of consanguineous marriages have served as a unique resource for studying rare and novel forms of recessive HL. A combined exome sequencing, bioinformatics analysis, and gene mapping approach for 21 consanguineous Pakistani families revealed 13 pathogenic or likely pathogenic variants in the genes GJB2, MYO7A, FGF3, CDC14A, SLITRK6, CDH23, and MYO15A, with an overall resolve rate of 61.9%. GJB2 and MYO7A were the most frequently involved genes in this cohort. All the identified variants were either homozygous or compound heterozygous, with two of them not previously described in the literature (15.4%). Overall, seven missense variants (53.8%), three nonsense variants (23.1%), two frameshift variants (15.4%), and one splice-site variant (7.7%) were observed. Syndromic HL was identified in five (23.8%) of the 21 families studied. This study reflects the extreme genetic heterogeneity observed in HL and expands the spectrum of variants in deafness-associated genes.
KW  - genetic diagnosis
KW  - consanguinity
KW  - genome-wide linkage analysis
KW  - hearing loss
KW  - Pakistan
KW  - exome sequencing
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-219293
SN  - 2073-4425
VL  - 11
IS  - 11
ER  -