Katja Kiseljak-Vassiliades, DO
Assistant Professor, Medicine-Endocrinology/Metabolism/Diabetes

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Medical School:
  • DO, Arizona College of Osteopathic Medicine of Midwestern University (2005)
Undergraduate School:
  • BA, Bethany College (KS) (2000)
Internship:
  • Johns Hopkins University/Sinai Hospital of Baltimore Program (2006)
Residency:
  • Johns Hopkins University/Sinai Hospital of Baltimore Program, Chief Resident, Internal Medicine (2009)
Fellowships:
  • University of Colorado, Endocrinology, Diabetes and Metabolism (2012)
Languages: English, Croatian, Bosnian
Department: Medicine-Endocrinology/Metabolism/Diabetes

Recognition & Awards

  • Young invesitigator award, Women in Endocrinology (2012)

Publications

  • Lang J, Capasso A, Jordan KR, French JD, Kar A, Bagby SM, Barbee J, Yacob BW, Head LS, Tompkins KD, Freed BM, Somerset H, Clark TJ, Pitts TM, Messersmith WA, Eckhardt SG, Wierman ME, Leong S, Kiseljak-Vassiliades K. Development of an Adrenocortical Cancer Humanized Mouse Model to Characterize Anti-PD1 Effects on Tumor Microenvironment. J Clin Endocrinol Metab. 2020 Jan 1;105(1). PubMed PMID: 31513709
  • Head L, Kiseljak-Vassiliades K, Clark TJ, Somerset H, King J, Raeburn C, Albuja-Cruz M, Weyant M, Cleveland J, Wierman ME, Leong S. Response to Immunotherapy in Combination With Mitotane in Patients With Metastatic Adrenocortical Cancer. J Endocr Soc. 2019 Dec 1;3(12):2295-2304. PubMed PMID: 31745526
  • Kar A, Zhang Y, Yacob B, Saeed JM, Tompkins KD, Bagby S, Pitts TM, Somerset HL, Leong S, Wierman M, Kiseljak-Vassiliades K. Targeting PDZ binding kinase is anti-tumorigenic in novel preclinical models of ACC. Endocr Relat Cancer. 2019 Jul 1. [Epub ahead of print] PubMed PMID: 31325906
  • Hadjidemetriou I, Mariniello K, Ruiz-Babot G, Pittaway J, Mancini A, Mariannis D, Gomez-Sanchez CE, Parvanta L, Drake WM, Chung TT, Abdel-Aziz TE, DiMarco A, Palazzo FF, Wierman ME, Kiseljak-Vassiliades K, King PJ, Guasti L. DLK1/PREF1 marks a novel cell population in the human adrenal cortex. J Steroid Biochem Mol Biol. 2019 Oct;193:105422. PubMed PMID: 31265901
  • Nachtigall LB, Karavitaki N, Kiseljak-Vassiliades K, Ghalib L, Fukuoka H, Syro LV, Kelly D, Fleseriu M. Physicians' awareness of gadolinium retention and MRI timing practices in the longitudinal management of pituitary tumors: a "Pituitary Society" survey. Pituitary. 2019 Feb;22(1):37-45. PubMed PMID: 30456434
  • Kiseljak-Vassiliades K, Zhang Y, Bagby S, Kar A, Pozdeyev N, Xu M, Gowan K, Sharma V, Raeburn CD, Albuja-Cruz M, Jones KL, Fishbein L, Schweppe R, Somerset HL, Pitts TM, Leong S, Wierman M. Development of new preclinical models to advance adrenocortical carcinoma research. Endocr Relat Cancer. 2018 Jan 25. [Epub ahead of print] PubMed PMID: 29371329
  • Nachtigall LB, Karavitaki N, Kiseljak-Vassiliades K, Ghalib L, Fukuoka H, Syro LV, Kelly D, Fleseriu M. Physicians' awareness of gadolinium retention and MRI timing practices in the longitudinal management of pituitary tumors: a "Pituitary Society" survey. Pituitary. 2018 Nov 19. [Epub ahead of print] PubMed PMID: 30456434
  • Kiseljak-Vassiliades K, Zhang Y, Kar A, Razzaghi R, Xu M, Gowan K, Raeburn CD, Albuja-Cruz M, Jones KL, Somerset H, Fishbein L, Leong S, Wierman ME. Elucidating the Role of the Maternal Embryonic Leucine Zipper Kinase in Adrenocortical Carcinoma. Endocrinology. 2018 Jul 1;159(7):2532-2544. PubMed PMID: 29790920
  • Kiseljak-Vassiliades K, Zhang Y, Bagby SM, Kar A, Pozdeyev N, Xu M, Gowan K, Sharma V, Raeburn CD, Albuja-Cruz M, Jones KL, Fishbein L, Schweppe RE, Somerset H, Pitts TM, Leong S, Wierman ME. Development of new preclinical models to advance adrenocortical carcinoma research. Endocr Relat Cancer. 2018 Apr;25(4):437-451. PubMed PMID: 29371329
  • Carr SB, Kleinschmidt-DeMasters BK, Kerr JM, Kiseljak-Vassiliades K, Wierman ME, Lillehei KO. Negative surgical exploration in patients with Cushing's disease: benefit of two-thirds gland resection on remission rate and a review of the literature. J Neurosurg. 2018 Nov 1;129(5):1260-1267. PubMed PMID: 29219752
  • Carr SB, Kleinschmidt-DeMasters BK, Kerr JM, Kiseljak-Vassiliades K, Wierman ME, Lillehei KO. Negative surgical exploration in patients with Cushing's disease: benefit of two-thirds gland resection on remission rate and a review of the literature. J Neurosurg. 2017 Dec 8;:1-8. [Epub ahead of print] PubMed PMID: 29219752
  • Kiseljak-Vassiliades K, Mills TS, Zhang Y, Xu M, Lillehei KO, Kleinschmidt-DeMasters BK, Wierman ME. Elucidating the Role of the Desmosome Protein p53 Apoptosis Effector Related to PMP-22 in Growth Hormone Tumors. Endocrinology. 2017 May 1;158(5):1450-1460. PubMed PMID: 28323918
  • Newsom SA, Brozinick JT, Kiseljak-Vassiliades K, Strauss AN, Bacon SD, Kerege AA, Bui HH, Sanders P, Siddall P, Wei T, Thomas M, Kuo MS, Nemkov T, D'Alessandro A, Hansen KC, Perreault L, Bergman BC. Skeletal muscle phosphatidylcholine and phosphatidylethanolamine are related to insulin sensitivity and respond to acute exercise in humans. J Appl Physiol (1985). 2016 Jun 1;120(11):1355-63. PubMed PMID: 27032901
  • Xiong W, Matheson CJ, Xu M, Backos DS, Mills TS, Salian-Mehta S, Kiseljak-Vassiliades K, Reigan P, Wierman ME. Structure-Based Screen Identification of a Mammalian Ste20-like Kinase 4 (MST4) Inhibitor with Therapeutic Potential for Pituitary Tumors. Mol Cancer Ther. 2016 Mar;15(3):412-20. PubMed PMID: 26721946
  • Xiong W, Matheson CJ, Xu M, Backos DS, Mills TS, Salian-Mehta S, Kiseljak-Vassiliades K, Reigan P, Wierman ME. Structure-Based Screen Identification of a Mammalian Ste20-like Kinase 4 (MST4) Inhibitor with Therapeutic Potential for Pituitary Tumors. Mol Cancer Ther. 2015 Dec 31. [Epub ahead of print] PubMed PMID: 26721946
  • Kiseljak-Vassiliades K, Xu M, Mills TS, Smith EE, Silveira LJ, Lillehei KO, Kerr JM, Kleinschmidt-DeMasters BK, Wierman ME. Differential somatostatin receptor (SSTR) 1-5 expression and downstream effectors in histologic subtypes of growth hormone pituitary tumors. Mol Cell Endocrinol. 2015 Dec 5;417:73-83. PubMed PMID: 26391562
  • Xiong W, Knox AJ, Xu M, Kiseljak-Vassiliades K, Colgan SP, Brodsky KS, Kleinschmidt-Demasters BK, Lillehei KO, Wierman ME. Mammalian Ste20-like kinase 4 promotes pituitary cell proliferation and survival under hypoxia. Mol Endocrinol. 2015 Mar;29(3):460-72. PubMed PMID: 25650755
  • Kiseljak-Vassiliades K, Carlson NE, Borges MT, Kleinschmidt-DeMasters BK, Lillehei KO, Kerr JM, Wierman ME. Growth hormone tumor histological subtypes predict response to surgical and medical therapy. Endocrine. 2015 May;49(1):231-41. PubMed PMID: 25129651
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Practice Locations

UCH - Anschutz Outpatient Pavilion
1635 Aurora Ct
Aurora, CO 80045
720-848-0000

Denver Veterans Affairs Medical Center
1055 Clermont St
Denver, CO 80220
1-888-336-8262

Endocrinology/Diabetes/Metabolism - Anschutz
1635 Aurora Ct
6th Floor
Aurora, CO 80045
720-848-2650

Hospital Affiliation
  • University of Colorado Hospital
  • Veterans Affairs Medical Center

Specialty Information

Specialties
  • Internal Medicine, Board Certification (2008)
  • Endocrinology, Diabetes and Metabolism, Board Certification (2011)
Conditions & Treatments
  • Endocrine System (Hormones) - Thyroid Cancer
  • Endocrine System (Hormones) - Adrenal Diseases
  • Endocrine System (Hormones) - Endocrine Cancer (Parathyroid, Adrenal, Carcinoid)
  • Brain and Nervous System - Pituitary Disorders
  • Pregnancy and Reproduction - Endocrine Disorders
  • Women's Health - Menopause
  • Brain and Nervous System
  • Endocrine System (Hormones)
  • Pregnancy and Reproduction
  • Women's Health

General Information

Medical Schools:
  • DO, Arizona College of Osteopathic Medicine of Midwestern University (2005)
Undergraduate Schools:
  • BA, Bethany College (KS) (2000)
Internships:
  • Johns Hopkins University/Sinai Hospital of Baltimore Program (2006)
Residency Programs:
  • Johns Hopkins University/Sinai Hospital of Baltimore Program, Chief Resident, Internal Medicine (2009)
Fellowships:
  • University of Colorado, Endocrinology, Diabetes and Metabolism (2012)
Languages: English, Croatian, Bosnian
Department: Medicine-Endocrinology/Metabolism/Diabetes
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