Mayo Clinic Laboratory and Pathology Research Roundup: Sept. 17

By Kelley Luedke • September 17, 2018

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The Research Roundup provides an overview of the past week’s research from Mayo Medical Laboratories consultants, including featured abstracts and complete list of published studies and reviews.

Featured Abstract

Risk of MGUS in Relatives of Multiple Myeloma Cases by Clinical and Tumor Characteristics

Mayo Clinic researchers have shown increased risk of monoclonal gammopathy of undetermined significance (MGUS) in first-degree relatives of patients with multiple myeloma (MM). Whether familial risk of MGUS differs by the MM proband's age at onset, tumor or clinical characteristics is unknown. MM and smoldering MM (SMM) cases were recruited from the Mayo Clinic in Rochester, Minnesota between 2005-2015. First-degree relatives over age 40 provided serum samples for evaluation of MGUS. Age and sex specific rates of MGUS among first-degree relatives were compared to a population-based sample. Cytogenetic subtypes were classified by Fluorescence in situ hybridization. MGUS was detected in 75 first-degree relatives for an age- and sex- adjusted prevalence of 5.8%. Prevalence of MGUS in first-degree relatives was 2.4 fold greater than expected rates. Familial risk did not differ by proband's age at diagnosis, gender, isotype, IgH translocation, or trisomy. This study confirms first-degree relatives of MM cases have a significantly higher risk of MGUS compared to the general population, regardless of age, gender, or tumor characteristics. In selected situations, such as multiple affected first-degree relatives, screening of first-degree relatives of MM cases could be considered for follow-up and prevention strategies. The study was published in Leukemia.

Published to PubMed This Week

• • • • • KMT2A (MLL) Rearrangements Observed in Pediatric/Young Adult T-Lymphoblastic Leukemia/Lymphoma: A 10-Year Review from a Single Cytogenetic Laboratory
          Genes Chromosomes Cancer
        • Apolipoprotein CII Amyloidosis Associated With p.Lys41Thr Mutation
          Kidney International Reports
        • Biallelic Inactivation of the Retinoblastoma Gene Results in Transformation of Chronic Myelomonocytic Leukemia to a Blastic Plasmacytoid Dendritic Cell Neoplasm: Shared Clonal Origins of Two Aggressive Neoplasms
          Blood Cancer Journal
        • Diabetic Mastopathy
          Mayo Clinic Proceedings
        • Genetic and Molecular Reappraisal of Spindle Cell Adamantinoma of Bone Reveals a Small Subset of Misclassified Intraosseous Synovial Sarcoma
          Modern Pathology
        • Malignant Tenosynovial Giant Cell Tumor: The True "Synovial Sarcoma?" A Clinicopathologic, Immunohistochemical, and Molecular Cytogenetic Study of 10 Cases, Supporting Origin from Synoviocytes
          Modern Pathology
        • Predictors of Neural-Specific Autoantibodies and Immunotherapy Response in Patients with Cognitive Dysfunction
          Journal of Neuroimmunology
        • Diagnostic Concordance Between NT-proBNP and BNP for Suspected Heart Failure
          Clinical Biochemistry
        • Cervical Lymph Node Fine-Needle Aspiration and Needle-Wash Thyroglobulin Reflex Test for Papillary Thyroid Carcinoma
          Endocrine Pathology

Kelley Luedke

Kelley Luedke is a Marketing Channel Manager at Mayo Clinic Laboratories. She is the principle editor and writer of Insights and leads social media and direct marketing strategy. Kelley has worked at Mayo Clinic since 2013. Outside of work, you can find Kelley running, traveling, playing with her kitty, and exploring new foods.