Research Experience

Columbia University

Advanced Rheumatology Research Fellow • 2019 — 2020 (expected)

Do Inflammatory Dendritic Cells Drive Connective Tissue Injury in Rheumatoid Arthritis? Supervisors: Dr. Robert Winchester and Dr. Joan Bathon

NIH/NIAID Laboratory of Infectious Diseases

Research Volunteer • 11/2014 — 6/2017

Medical University of Vienna

Research Assistant Division of Cardiology • 4/2012 — 3/2013

Clinical Experience

Columbia University

Rheumatology Fellow • 2017 — 2019

George Washington University

Internal Medicine Resident • 2014 — 2017

National Institutes of Health

Clinical Electives Program • 07/2013 — 08/2013

Education

Medical University of Vienna

Doctor of Medicine • 2005 — 2013

Vienna University of Economics and Business

Bachelor of Science • 2006 — 2012

Honors & Awards

Ines Mandl Research Fellowship

Dr. Ines Mandl Research Foundation • 2019

Do Inflammatory Dendritic Cells Drive Connective Tissue Injury in Rheumatoid Arthritis?

Awarded to two Columbia early career scientists conducting promising work in the field of connective tissue research
$60,000 ($30,000 per year for two years)

Research Excellence During Fellowship Training Award

New York State Rheumatology Society • 2018

Antibodies to Recombinant Citrullinated Myosin are Associated with Measures of Diastolic Dysfunction in Patients with Rheumatoid Arthritis

Awarded to one participating Rheumatology Fellow from New York State
$4,000 ($2,000 for educational expenses and $2,000 for our division)

www.rheumatologyatcolumbia.org/news/ny-state-rheumatology-society-awards-first-place-christian-geier

Thesis Research Grant

Medical University of Vienna • 2013

Quantification of cardiac fibrosis as part of doctorate thesis
A porcine study to compare the toxicity of liposomal and non-liposomal anthracyclines

EUR 800

Max Kade Clinical Clerkship

American Austrian Foundation • 2013

Awarded to 10 medical students of Austrian universities per year
$1,700 scholarship

Austrian Medical Association Student Exchange Program

Austrian Medical Association • 2012

Awarded to 8-12 medical students of Austrian universities per year

Publications

In Rheumatoid Arthritis (RA) Decreases in Conventional Dendritic Cell Lineages Are Associated with Adverse Measures of Myocardial Function and Expansions of Anomalous HLA-DR+ Myeloid Subsets
Abstract/Poster

Geier C, Giles JT, Gibor G, Bathon J & Winchester R • 11/2019

American College of Rheumatology Annual Meeting, Atlanta, GA

Peripheral decrease and enhanced migratory phenotype of a subset of blood myeloid dendritic cells (CD1c⁺ mDC) are associated with adverse measures of cardiac function in patients with Rheumatoid Arthritis (RA)
Abstract

Geier C, Giles JT, Gibor G, Russo C, Tugcu A, Bokhari S, Bathon J & Winchester R • 3/2019

Columbia University Research Day for Clinical and Post-doctoral Fellows and Scientists, New York, NY

“Carpal tunnel syndrome” and “Tennis Elbow” as prodromes of Granulomatosis with Polyangiitis
Case report

Geier C, Steed K. • 2/2019

BMJ Case Rep. 2019 Feb 2

Seroreactivity Against Recombinant Citrullinated Myosin Is Associated with Measures of Diastolic Dysfunction in Patients with Rheumatoid Arthritis
Abstract/Poster

Geier C, Fert-Bober J, Giles JT, Russo C, Bokhari C, Tugcu A, Van-Eyk J, Bathon J • 10/2018

American College of Rheumatology Annual Meeting, Chicago, IL

Tumor necrosis factor inhibitor survival in US Veterans with Axial Spondyloarthritis
Abstract/Poster

Bekele D, Cheng E, Geier C, Ganuthula K, Walsh J, Dubreuil M, Clegg D, Kaushik P, Ng B, Chang E, Reimold A, Raychaudhuri S, Kuhn K, Park Y, Kerr G • 10/2018

American College of Rheumatology Annual Meeting, Chicago, IL

Antibodies to recombinant citrullinated myosin are associated with measures of diastolic dysfunction in patients with rheumatoid arthritis
Abstract/Poster

Geier C, Fert-Bober J, Giles JT, Russo C, Bokhari C, Tugcu A, Van-Eyk J, Bathon J • 5/2018

New York State Rheumatology Society Annual Meeting

Prevalence of Pol3 antibody in a cohort of patients with delayed wound healing
Abstract/Poster

Geier C, McNish S, Shanmugam VK • 11/2016

American College of Rheumatology Annual Meeting, Washington, DC

Severe human monocytic ehrlichiosis presenting with altered mental status and seizures
Case Report

Geier C, Davis J, Siegel M • 10/2016

BMJ Care Reports. Article selected for BMJ press release.

Will She Recover? A Prolonged Hospitalization for a Comatose Female with Neuropsychiatric Lupus
Clinical Vignette

Kumar S, Geier C • 3/2016

Society of General Internal Medicine MidAtlantic Meeting 2016

A porcine study to compare the cardiotoxicity of liposomal and non-liposomal anthracyclines. Supervisor: M Pavone-Gyongyosi, MD, PhD
MD Thesis

Geier C • 8/2013

Work presented in related abstracts at 2014 ASCO and European Society of Cardiology Annual Meetings

Skills

Multicolor flow cytometry

Over the past two years I have gained significant experience transitioning our lab to routine use of multicolor (LSR II) and spectral cytometry (Cytek Aurora). I have introduced several process innovations to optimize the resulting multicolor images in regards to staining conditions, sample handling, and analytics. I am also responsible for analysis of the resulting multidimensional data sets. I have a particular interest in deep learning algorithms; particularly clustering algorithms such as T-distributed Stochastic Neighbor Embedding (t-SNE) and most recently Uniform Manifold Approximation and Projection (UMAP) as both a research tool to visualize and communicate complex data.

Bioinformatics (Python and R)

I routinely use Python and its relevant modules (pandas, seaborn, Tensor Flow, Keras) data analysis, data management, and visualization. While at NIH I used the R programming language to write software enabling the large-scale extraction of laboratory and clinical data from medical records.