ADTKD Vision Cure

@adtkd-muc1.bsky.social

Awareness für die seltene, genetisch bedingte Nierenerkrankung #ADTKD #MUC1 #UMOD. Therapie am Horizont. #ProOrganspende #Widerspruchsregelung

Das Selbstbestimmungsrecht, das den Kritikern der Widerspruchsregelung so wichtig ist, wird unter der jetzigen Gesetzgebung ständig verletzt - nämlich, wenn Angehörige nach dem „mutmaßlichen Willen” des Verstorbenen oder ihren eigenen Vorstellungen entscheiden.

CORRECTIV@correctiv.org · 2mo ago

#Organspende soll in Deutschland zur Regel werden: Bundestagsabgeordnete wollen die umstrittene #Widerspruchslösung erneut einführen. Was das für das #Organspenderegister bedeuten würde – und warum sich bisher nur wenige Menschen eingetragen haben.

#ERA26 Significant progress has been made in data collection on #ADTKD, the third most common rare kidney disease. The European registry is one of the fastest growing. If you have patients with (suspected) ADTKD, please contact Jan Halbritter (@ChariteBerlin @Uniklinik_Fr ).

Jan Halbritter presents the ADTKD registry.Overview ADTKD registry Distribution ADTKD MUC1/UMOD

Organspende betrifft uns alle. Und wir sprechen trotzdem selten darüber. Im aktuellen „Gasthörer“-Podcast gibt Transplantationsmediziner Prof. Dr. Bernhard Banas Einblicke in eine Medizin zwischen Hochtechnologie, ethischen Fragen und persönlichen Geschichten. Jetzt überall, wo es Podcasts gibt 🎧

Transplantationsmedizin mit Bernhard Banas

Organspende betrifft uns alle – und wir sprechen trotzdem selten darüber. Im „Gasthörer“ gibt Prof. Dr. Bernhard Banas Einblicke in eine Medizin zwischen Hochtechnologie, ethischen Fragen und ganz per...

blog.uni-regensburg.de

(BioRxiv All) Long-Read Sequencing of the MUC1 VNTR: Genomic Variation, Mutational Landscape, and Its Impact on ADTKD Diagnosis and Progression: Background: ADTKD MUC1 is caused by frameshift mutations in MUC1 gene that produce a frameshifted protein (MUC1fs) toxic to kidney… #BioRxiv #MassSpecRSS

Long-Read Sequencing of the MUC1 VNTR: Genomic Variation, Mutational Landscape, and Its Impact on ADTKD Diagnosis and Progression

Background: ADTKD MUC1 is caused by frameshift mutations in MUC1 gene that produce a frameshifted protein (MUC1fs) toxic to kidney cells. The gene s variable number of tandem repeats (VNTR), with high GC content, makes it largely inaccessible to standard sequencing. As a result, both the reference sequence and natural variation in this region remain poorly defined, complicating mutation detection and data interpretation. Standard methods also fail to pinpoint the exact VNTR unit affected, limiting insight into mutation mechanisms and genotype/phenotype correlations. Methods: We employed Single Molecule, Real Time (SMRT) sequencing and characterized the genomic sequence of MUC1 in 300 individuals including 279 individuals from 143 families suspected of having ADTKD MUC1. We compared these results to those obtained using the CLIA approved mass spectrometry based probe extension (PE) assay, which specifically detect the most prevalent 59dupC mutation. We correlated the structural features of the MUC1 VNTR with the rate of kidney function decline in affected individuals. Results: We identified MUC1 consensus sequences for 205 unique VNTR alleles, with 9 distinct types of frameshift mutations present on 52 distinct mutated VNTR alleles. MUC1 frameshift mutations were identified in 71 of 143 families (50%) with suspected ADTKD, comprising 135 genetically affected individuals (48%). The SMRT assay exhibited complete concordance and revealed that the PE assay is capable of detecting frameshift mutations in approximately 85% of affected families. The constellation of VNTR structures supports a genotype progression model, in which fast progressors exhibit a significantly lower number of repeat units on the wild type allele and a higher number of repeats on the mutation bearing allele, including an increased number of frameshifted repeat units. Conclusions: SMRT sequencing outperforms current diagnostic methods for ADTKD-MUC1 and reveals the prognostic value of VNTR structures. Although their contribution to disease progression is modest (~6% variance explained), it remains biologically and clinically meaningful.

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