Kaan Boztug Group

Kaan Boztug Group

Immune Deficiency, Cancer Predisposition & Precision Oncology

Kaan Boztug Email: kaan.boztug(at)ccri.at

Research Focus

Our group works at the interface of  inborn immune disorders and inherited predisposition to childhood tumors, aiming  to understand fundamental mechanisms of immune surveillance relevant to pediatric oncology and immunotherapy approaches. In close collaboration with several other groups at the institute and the St. Anna Children’s Hospital next door, we aim to translate the molecular understanding of childhood cancer (predisposition) to specific pathway modulations for the identification of targeted treatment approaches for pediatric cancer patients.

Introduction

Dysregulation of the immune system can lead to an increased susceptibility to infections, autoimmune manifestations and cancer. While research on immunodeficiencies has so far been primarily focused on the susceptibility to pathogens, the fact that a dysregulated immune system can also lead to malignancy has been largely neglected until recently. We study patients suffering from inherited defects of the immune systems, so-called inborn errors of immunity (IEI), formerly known as primary immunodeficiencies, as (mono)genetic diseases provide unique opportunities to unravel genotype to phenotype relationships and to elucidate the pathogenic mechanisms of immune system disorders and their interaction with malignancy.

Aim

We want to uncover the molecular processes underlying IEIs in order to decipher the highly complex signaling pathways of the human body that are relevant for immunodeficiencies and cancer susceptibility. The investigations of these fundamental mechanisms have an enormous impact on how we understand the development of malignancies.  We study the interplay of genes and pathways that play a role in malignant and immune system disorders to enhance our molecular understanding of these diseases.

Approach

We utilize state-of-the art genomic approaches including exome sequencing of patient samples to identify causative genetic mutations, combined with a variety of functional assays to:

  • Gain a systematic understanding of the molecular basis of human immune (dys)regulation including autoimmunity and childhood cancer predisposition
  • Elucidate genetics and molecular pathophysiology of rare inborn errors of immunity and to decipher molecular targets for the development of personalized treatment options for immune deficiencies
  • Identify molecular targets through an institute-wide pediatric precision oncology program for tailored treatment of childhood cancer which may be resistant to standard therapeutic protocols

The provision of highly specialised treatment and care for patients with rare diseases and complex clinical manifestations such as childhood cancer is still a challenge. Our investigations aim to improve our understanding of the molecular architecture of the immune system and its linkage with malignancy with the ultimate goal to improve the wellbeing of patients by developing targeted therapies and personalized medicine approaches.

Kaan Boztug is Director of the Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases (LBI-RUD). The research focus of the LBI-RUD is on rare diseases of the immune system, hematopoiesis, dermatology and the nervous system, which all together account for more than half of all rare diseases. Other focus areas include rare diseases in the field of gastroenterology, hepatology and cancer. CCRI has been a partner institution of LBI-RUD since its conception and launch in 2016.

Selected Articles:

  • Somekh I*, Thian M*, Medgyesi D, Gülez N, Magg T, Gallón Duque A, Stauber T, Lev A, Genel F, Unal E, Simon AJ, Lee YN, Kalinichenko A, Dmytrus J, Kraakman M, Schiby G, Rohlfs M, Jacobson JM, Özer E, Akcal Ö, Conca R, Patiroglu T, Karakukcu M, Ozcan A, Shahin T, Appella E, Tatematsu M, Martinez-Jaramillo C, Chinn IK, Orange JS, Trujillo-Vargas CM, Franco JL, Hauck F, Somech R§, Klein C§, Boztug K§. CD137 deficiency causes immune dysregulation with predisposition to lymphomagenesis. Blood. 2019 Sep 9. pii: blood.2019000644. doi: 10.1182/blood.2019000644. (*shared first authorship, § shared senior and corresponding authorship)
  • Domínguez Conde C*, Petronczki ÖY*, Baris S*, Willmann KL*, Girardi E, Salzer E, Weitzer S, Ardy RC, Krolo A, Ijspeert H, Kiykim A, Karakoc-Aydiner E, Förster-Waldl E, Kager L, Pickl WF, Superti-Furga G, Martínez J, Loizou J, Ozen A, van der Burg M, Boztug K. Polymerase δ deficiency causes syndromic immunodeficiency with replicative stress. J Clin Invest. 2019 Aug 26. pii: 128903. doi: 10.1172/JCI128903. (* shared first authorship)
  • Serwas NK*, Hoeger B*, Ardy RC, Stulz SV, Sui Z, Memaran N, Meeths M, Krolo A, Petronczki ÖY, Pfajfer L, Hou TZ, Halliday N, Santos-Valente E, Kalinichenko A, Kennedy A, Mace EM, Mukherjee M, Tesi B, Schrempf A, Pickl WF, Loizou JI,  Kain R, Bidmon-Fliegenschnee B, Schickel JN, Glauzy S, Huemer J, Garncarz W, Salzer E, Pierides I, Bilic I, Thiel J, Priftakis P, Banerjee PP, Förster-Waldl E, Medgyesi D, Huber WD, Orange JS, Meffre E, Sansom DM, Bryceson YT, Altman A, Boztug K. Human DEF6 deficiency underlies a novel immunodeficiency syndrome with systemic autoimmunity and aberrant CTLA-4 homeostasisNat Commun. 2019 Jul 15; 10(1):3106. doi: 10.1038/s41467-019-10812-x. (* shared first authorship)
  • Ozen A*, Comrie WA*, Ardy RC*, Domínguez Conde C, Dalgic B, Beser ÖF, Morawski AR, Karakoc-Aydiner E, Tutar E, Baris S, Ozcay F, Serwas NK, Zhang Y, Matthews HF, Pittaluga S, Folio LR, Unlusoy Aksu A, McElwee JJ, Krolo A, Kiykim A, Baris Z, Gulsan M, Ogulur I, Snapper SB, Houwen RHJ, Leavis HL, Ertem D, Kain R, Sari S, Erkan T, Su HC, Boztug K§, Lenardo MJ§. CD55 Deficiency, Early-Onset Protein-Losing Enteropathy, and ThrombosisN Engl J Med. 2017 Jul 6; 377(1):52-61. doi: 10.1056/NEJMoa1615887. (* shared first authorship; § shared senior and corresponding authorship)
  • Salzer E, Cagdas D#, Hons M#, Mace EM#, Garncarz W, Petronczki ÖY, Platzer R, Pfajfer L, Bilic I, Ban SA, Willmann KL, Mukherjee M, Supper V, Hsu HT, Banerjee PP, Sinha P, McClanahan F, Zlabinger GJ, Pickl WF, Gribben JG, Stockinger H, Bennett KL, Huppa JB, Dupré L, Sanal Ö, Jäger U, Sixt M#, Tezcan I#, Orange JS#, Boztug K. RASGRP1 deficiency causes immunodeficiency with impaired cytoskeletal dynamics. Nat Immunol. 2016 Dec; 17(12):1352-1360. doi: 10.1038/ni.3575. (# equal contribution)

Management Team

Kaan Boztug

Kaan Boztug

Scientific Director & Principal Invesitgator

kaan.boztug(at)ccri.at

+43 1 40470 4080

Alexis Lomakin

Alexis Lomakin

Program Leader & Deputy Lab Head

alexis.lomakin(at)ccri.at

+43 1 40470 4076

Isabel Grießhammer

Isabel Grießhammer

Senior Scientific Project Manager

isabel.griesshammer(at)ccri.at

+43 1 40470 4091

Wojciech Garncarz

Wojciech Garncarz

Lab Manager

wojciech.garncarz(at)ccri.at

+43 1 40470 4074

Lab Members

Sevgi Köstel Bal

Sevgi Köstel Bal

Postdoc

sevgi.koestel-bal(at)ccri.at

+43 40470 4074

Jakob Berner

Jakob Berner

PhD student

jakob.berner(at)ccri.at

+43 1 40470 4072

Jana Block

Jana Block

PhD student

jana.block(at)ccri.at

+43 1 40470 4082

Irinka Castanon Ortega

Irinka Castanon Ortega

Senior Staff Scientist

irinka.castanon(at)ccri.at

+43 1 40470 4075

Sarah Giuliani

Sarah Giuliani

Technical Assistant

sarah.giuliani(at)ccri.at

+43 1 40470 4082

Matthias Haimel

Matthias Haimel

Bioinformatician in collaboration with the Christoph Bock group at CeMM

matthias.haimel(at)ccri.at

Ben Haladik

Ben Haladik

PhD Student

ben.haladik(at)ccri.at

+43 1 40160 70092

Vanessa Hertlein

Vanessa Hertlein

Postdoc

vanessa.hertlein(at)ccri.at

+43 1 40470 4077

Raúl Jiménez Heredia

Raúl Jiménez Heredia

Technical Assistant

raul.jimenez-heredia(at)ccri.at

+43 1 40470 4071

Artem Kalinichenko

Artem Kalinichenko

Senior Postdoc

artem.kalinichenko(at)ccri.at

+43 1 40470 4077

Jurac Konc

Jurac Konc

Postdoc

jurac.konc(at)ccri.at

+43 1 40470 4077

Michael Kraakman

Michael Kraakman

Senior Postdoc

michael.kraakman(at)ccri.at

+43 1 40470 4077

Bernhard Ransmayr

Bernhard Ransmayr

PhD Student

bernhard.ransmayr(a)ccri.at

+43 1 40470 4072

Christina Rashkova

Christina Rashkova

Technical Assistant

christina.rashkova(a)ccri.at

+43 1 40470 4072

Elisabeth Salzer

Elisabeth Salzer

Postdoc, resident at St. Anna Children’s Hospital

elisabeth.salzer(a)stanna.at

+43 1 40470 4074

Anna Segarra Roca

Anna Segarra Roca

Technical Assistant

anna.segarra-roca(a)ccri.at

+43 1 40470 4071

Tala Shahin

Tala Shahin

PhD Student

tala.shahin(a)ccri.at

+43 1 40470 4072

Sören Strohmenger

Sören Strohmenger

PhD Student

soeren.strohmenger(a)ccri.at

+43 1 40470 4076

Özlem Yüce Petronczki

Özlem Yüce Petronczki

Staff Scientist

o.yuece-petronczki(a)ccri.at

+43 1 40470 4076

Marini Thian

Marini Thian

PhD Student

marini.thian(a)ccri.at

+43 1 40470 4072

Samaneh Zoghi

Samaneh Zoghi

Postdoc

samaneh.zoghi(a)ccri.at