Okan Gültekin
- Department of Women's and Children's Health
- Division for Neonatology, Obstetrics, Gynaecology and Reproductive Health
- Gynecologic Cancer – Henrik Falconer's research group
Research
My research is driven by a global vision to outsmart advanced gynecological cancers—including High-Grade Serous Carcinoma (HGSC), uterine sarcomas, and cervical cancers—by decoding the complex dialogue within the tumor microenvironment (TME). Based at the Department of Women’s and Children’s Health (KBH), I lead an initiative to transform multi-dimensional biological data into a roadmap for personalized patient care.
For many patients, the path to recovery is complicated by the disease’s ability to adapt and resist treatment. Traditional models often miss the "big picture"—the silent interactions between the tumor, the patient’s own response to surgical trauma, and the unique environment in which the cancer grows. My work addresses this by building an AI-powered framework that understands these hidden patterns. Instead of looking at a single factor, this endeavor synthesizes clinical history with the molecular changes that occur during the critical window of surgical treatment.
With "full-stack" expertise in spatial functional mapping, my methodological approach bridges clinical sample acquisition with advanced bioengineering and computational analysis:
- Functional Modeling: I utilize 3D ex vivo explants and biomimetic "multi-organ on a chip" microfluidic systems to investigate how malignant fluids, such as ascites, act as a "schooling medium" that amplifies tumor malignancy.
- Spatial Functional Mapping: I leverage high-plex spatial biology, including CODEX (PhenoCycler) and Multiplex Immunofluorescence, to map complex immune neighborhoods and tissue responses.
- AI & Bio-imaging: I develop machine-learning-based pipelines to translate systems-level biological data into clinically relevant tools, specifically investigating how inflammation and wound healing triggered by surgery affect cancer invasion and chemoresistance.
This undertaking is built on the belief that solving a global problem requires a global team. My research journey involves a cross-border collaboration between Karolinska Institutet, the University of Helsinki, and Queen Mary University of London, working toward a future where every patient receives a treatment plan as unique as they are.
Teaching
*2019-23 * Lecturer for tumor image analysis, PhD/MSc course “Tumor
microenvironment communication” Karolinska Institutet, Stockholm, SE
*2020- 23 *Supervisor to 5 biomedical students for Bachelor thesis, 5
biomedical student Master thesis
Articles
- Journal article: CELL COMMUNICATION AND SIGNALING. 2026;24(1):376Zhang Y; Gultekin O; Kupcik R; Budagaga Y; Vagiannis D; Sabet Z; Lehti K; Hofman J
- Journal article: CANCER RESEARCH. 2026;86(7):2082Kwock K; Gultekin O; Ozkizilkaya HI; Roman LD; Wallace WD; Petta T; Carlson JW
- Article: EBIOMEDICINE. 2026;124:106135Gjerde CH; Kleinmanns K; Langer A; Ponce GRDG; Rozmus E; Stangeland GN; Leitch C; Elnour R; Dongre HN; Berger C; Gultekin O; Forcados C; Stensland M; Nyman TA; Lehti K; Davidson B; Walchli S; Gelebart P; Costea DE; Kotopoulis S; Bjorge L; McCormack E
- Article: NATURE COMMUNICATIONS. 2025;16(1):8541Gonzalez-Molina J; Nabili P; Marciano D; Abdelnabi S; Gultekin O; Rasul MF; Zhang Y; Nadal C; Chrysanthou A; Alkasalias T; Salehi S; Balkwill F; Lehti K; Gautrot JE
- Article: TRANSLATIONAL ONCOLOGY. 2025;59:102462Gultekin O; Gonzalez-Molina J; Sarhan D; Groes-Kofoed N; Ul Hassan M; Lehti K; Salehi S
- Article: CANCER IMMUNOLOGY RESEARCH. 2025;13(7):1080-1097Sun Y; Furones AR; Gultekin O; Khare S; Neo SY; Shi W; Moyano-Galceran L; Lam K-P; Dasgupta R; Fuxe J; Salehi S; Lehti K; Sarhan D
- Article: MOLECULAR ONCOLOGY. 2024;18(4):850-865Gonzalez-Molina J; Hahn P; Falcao RM; Gultekin O; Kokaraki G; Zanfagnin V; Braz Petta T; Lehti K; Carlson JWW
- Article: SEMINARS IN CANCER BIOLOGY. 2022;86(Pt 3):224-236Gonzalez-Molina J; Moyano-Galceran L; Single A; Gultekin O; Alsalhi S; Lehti K
- Article: NPJ PRECISION ONCOLOGY. 2021;5(1):97Gultekin O; Gonzalez-Molina J; Hardell E; Moyano-Galceran L; Mitsios N; Mulder J; Kokaraki G; Isaksson A; Sarhan D; Lehti K; Carlson JW
- Article: NATURE COMMUNICATIONS. 2021;12(1):3904Pietilae EA; Gonzalez-Molina J; Moyano-Galceran L; Jamalzadeh S; Zhang K; Lehtinen L; Turunen SP; Martins TA; Gultekin O; Lamminen T; Kaipio K; Joneborg U; Hynninen J; Hietanen S; Grenman S; Lehtonen R; Hautaniemi S; Carpen O; Carlson JW; Lehti K
- Article: CANCER RESEARCH. 2021;81(11):3022-3035Schoutrop E; El-Serafi I; Poiret T; Zhao Y; Gultekin O; He R; Moyano-Galceran L; Carlson JW; Lehti K; Hassan M; Magalhaes I; Mattsson J
- Article: CANCERS. 2021;13(5):1175Su Y; Tsagkozis P; Papakonstantinou A; Tobin NP; Gultekin O; Malmerfelt A; Ingelshed K; Neo SY; Lundquist J; Chaabane W; Nisancioglu MH; Leiss LW; Ostman A; Bergh J; Sedimbi S; Lehti K; Lundqvist A; Stragliotto CL; Haglund F; Ehnman M
All other publications
- Preprint: BIORXIV. 2025Sun Y; Kaminskiy Y; Branca R; Li S; Gultekin O; Govindajaran K; Salehi S; Lehtiö J; Sarhan D
- Preprint: BIORXIV. 2025Sun Y; Wan M; Kolbeinsdottir S; Wang K; Khare S; Gultekin O; Salehi S; Lehti K; Dasgupta R; Foukakis T; Enge M; Sarhan D
- Preprint: BIORXIV. 2024Almazán NM; Román S; Sun Y; Bräutigam L; Pantalone MR; Stragliotto G; Gultekin O; Saheli S; Lehti K; Nauclér CS; Sarhan D
- Doctoral thesis: 2024Gultekin O
- Review: MATRIX BIOLOGY. 2023;121:217-228Closset L; Gultekin O; Salehi S; Sarhan D; Lehti K; Gonzalez-Molina J
Grants
- A Multi-Modal, AI-Driven Framework for Precision Oncology in Advanced Epithelial Ovarian Cancer.Swedish Cancer Society14 August 2026 - 14 August 2029Advanced epithelial ovarian cancer (aEOC), particularly High-Grade Serous Carcinoma (HGSC), is a lethal malignancy with high recurrence rates and chemoresistance. A critical gap exists in understanding how surgical trauma and the malignant ascites microenvironment drive disease progression and treatment failure. This project aims to develop an innovative, AI-driven predictive model by integrating multi-dimensional data to improve patient outcomes. We will use a unique biobank of paired tumor, ascites, and peritoneal samples, collected before and after surgery, for comprehensive multi-omic characterization (genomics, proteomics, scRNA-seq) to identify the molecular impact of surgical stress. The functional impact of ascites on cancer cell behavior will be investigated using advanced 3D in vitro models and a biomimetic "multi-organ on a chip" ex vivo system to model metastasis. Finally, all high-dimensional datasets will be integrated into a novel, multi-modal AI model, creating a powerful predictive tool. This will enable superior patient stratification and guide personalized surgical and therapeutic management, with the goal of improving clinical outcomes for women with aEOC.
Employments
- Postdoctoral Researcher, Department of Women's and Children's Health, Karolinska Institutet, 2026-2029
- Affiliated to Research, Department of Women's and Children's Health, Karolinska Institutet, 2025-2026
- Research Assistant, Department of Women's and Children's Health, Karolinska Institutet, 2025-2025
Degrees and Education
- Degree Of Doctor Of Philosophy, Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 2024
- Degree Of Master Of Medical Science 120 Credits, Karolinska Institutet, 2019
