Hartmut Koeppen

ORCID: 0000-0003-0923-3110
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About
Contact & Profiles
Research Areas
  • Cancer Immunotherapy and Biomarkers
  • Lung Cancer Treatments and Mutations
  • PI3K/AKT/mTOR signaling in cancer
  • Advanced Breast Cancer Therapies
  • Monoclonal and Polyclonal Antibodies Research
  • Melanoma and MAPK Pathways
  • Cancer Mechanisms and Therapy
  • Cancer Genomics and Diagnostics
  • Immunotherapy and Immune Responses
  • Cancer Treatment and Pharmacology
  • CAR-T cell therapy research
  • Angiogenesis and VEGF in Cancer
  • HER2/EGFR in Cancer Research
  • Phagocytosis and Immune Regulation
  • Pancreatic and Hepatic Oncology Research
  • Colorectal Cancer Treatments and Studies
  • Lymphoma Diagnosis and Treatment
  • Cancer Cells and Metastasis
  • Cutaneous Melanoma Detection and Management
  • Glioma Diagnosis and Treatment
  • Bladder and Urothelial Cancer Treatments
  • Cognitive Computing and Networks
  • Breast Cancer Treatment Studies
  • Cancer, Hypoxia, and Metabolism
  • Ferroptosis and cancer prognosis

Henry Ford Hospital
2017

University of Zurich
2017

Genedata (Switzerland)
2017

Genentech
2001-2015

Fluidigm (United States)
2014

Health Awareness (United States)
2014

Computational Intelligence and Information Systems Lab
2014

University of Oxford
2011-2013

Array BioPharma (United States)
2013

MRC Weatherall Institute of Molecular Medicine
2011-2013

Exomes, transcriptomes and copy-number alterations in a sample of more than 70 primary human colonic tumours were analysed an attempt to characterize the genomic landscape; addition finding genes associated with commonly mutated signalling pathways, recurrent gene fusions involving R-spondin family members also found occur approximately 10% tumours, revealing potential new therapeutic target. An analysis exomes, colon matched normal controls has identified 35,000 protein-altering somatic...

10.1038/nature11282 article EN cc-by-nc-sa Nature 2012-08-01

Anti-tumour immune activation by checkpoint inhibitors leads to durable responses in a variety of cancers, but combination approaches are required extend this benefit beyond subset patients. In preclinical models tumour-derived VEGF limits cell activity while anti-VEGF augments intra-tumoral T-cell infiltration, potentially through vascular normalization and endothelial activation. This study investigates how blockade with bevacizumab could potentiate PD-L1 inhibition atezolizumab mRCC....

10.1038/ncomms12624 article EN cc-by Nature Communications 2016-08-30

Abstract With only a fraction of patients responding to cancer immunotherapy, better understanding the entire tumor microenvironment is needed. Using single-cell transcriptomics, we chart fibroblastic landscape during pancreatic ductal adenocarcinoma (PDAC) progression in animal models. We identify population carcinoma-associated fibroblasts (CAF) that are programmed by TGFβ and express leucine-rich repeat containing 15 (LRRC15) protein. These LRRC15+ CAFs surround islets absent from normal...

10.1158/2159-8290.cd-19-0644 article EN Cancer Discovery 2019-11-07

Purpose Vascular endothelial growth factor (VEGF) is a potent molecule that mediates tumor angiogenesis primarily through VEGF receptor 2 (VEGFR2). Bevacizumab, recombinant humanized monoclonal antibody to VEGF, was administered previously untreated patients evaluate parameters of angiogenesis. Patients and Methods Twenty-one with inflammatory locally advanced breast cancer were treated bevacizumab for cycle 1 (15 mg/kg on day 1) followed by six cycles doxorubicin (50 mg/m ) docetaxel (75...

10.1200/jco.2005.03.4645 article EN Journal of Clinical Oncology 2006-01-04

Bevacizumab is a monoclonal antibody to vascular endothelial growth factor-A (VEGF). In the pivotal trial in metastatic colorectal cancer (mCRC), addition of bevacizumab first-line irinotecan, fluorouracil, and leucovorin (IFL) significantly prolonged median survival. The aim these retrospective subset analyses was evaluate VEGF, thrombospondin-2 (THBS-2), microvessel density (MVD) as prognostic factors and/or predictors benefit from bevacizumab.In trial, 813 patients with untreated mCRC...

10.1200/jco.2005.01.5388 article EN Journal of Clinical Oncology 2005-12-20

Expression of PD-L1, the ligand for T-cell inhibitory receptor PD-1, is one key immunosuppressive mechanism by which cancer avoids eradication immune system. Therapeutic use blocking antibodies to PD-L1 or its PD-1 has produced unparalleled, durable clinical responses, with highest likelihood response seen in patients whose tumour cells express before therapy. The significance expression each cell type emerged as a central and controversial unknown development immunotherapeutics. Using...

10.1038/ncomms14572 article EN cc-by Nature Communications 2017-02-21

We describe the preclinical pharmacology and antitumor activity of GDC-0068, a novel highly selective ATP-competitive pan-Akt inhibitor currently in clinical trials for treatment human cancers.The effect GDC-0068 on Akt signaling was characterized using specific biomarkers pathway, response to evaluated cancer cell lines xenograft models with various genetic backgrounds, either as single agent or combination chemotherapeutic agents.GDC-0068 blocked both cultured tumor evidenced by...

10.1158/1078-0432.ccr-12-3072 article EN Clinical Cancer Research 2013-01-04

Combinations of MAP/ERK kinase (MEK) and phosphoinositide 3-kinase (PI3K) inhibitors have shown promise in preclinical cancer models, leading to the initiation clinical trials cotargeting these two key signaling pathways. GDC-0973, a novel selective MEK inhibitor, GDC-0941, class I PI3K are early stage as both single agents combination. The discovery has allowed investigation into precise effects combining major branches downstream RAS. Here, we investigated multiple biomarkers...

10.1158/0008-5472.can-11-1515 article EN Cancer Research 2011-11-15

Significance Programmed death-ligand 1 (PD-L1) expression on tumor cells and tumor-infiltrating immune is regulated by distinct mechanisms has nonredundant roles in regulating anticancer immunity, PD-L1 both cell types important for predicting best response to atezolizumab non-small lung cancer.

10.1073/pnas.1802166115 article EN cc-by-nc-nd Proceedings of the National Academy of Sciences 2018-10-08

MPDL3280A is a human monoclonal antibody that targets programmed cell death-1 ligand 1 (PD-L1), and exerts anti-tumor activity mainly by blocking PD-L1 interaction with (PD-1) B7.1. It being investigated as potential therapy for locally advanced or metastatic malignancies. The purpose of the study reported here was to characterize pharmacokinetics, pharmacodynamics, tissue distribution tumor penetration and/or chimeric anti-PD-L1 PRO304397 help further clinical development. pharmacokinetics...

10.1080/19420862.2015.1136043 article EN mAbs 2016-02-26

Abstract Close proximity between cytotoxic T lymphocytes and tumour cells is required for effective immunotherapy. However, what controls the spatial distribution of in microenvironment not well understood. Here we couple digital pathology transcriptome analysis on a large ovarian cohort develop machine learning approach to molecularly classify characterize tumour-immune phenotypes. Our study identifies two important hallmarks characterizing cell excluded tumours: 1) loss antigen...

10.1038/s41467-020-19408-2 article EN cc-by Nature Communications 2020-11-04

Although immune checkpoint inhibitors (ICIs) are established as effective cancer therapies, overcoming therapeutic resistance remains a critical challenge. Here we identify interleukin 6 (IL-6) correlate of poor response to atezolizumab (anti-PD-L1) in large clinical trials advanced kidney, breast, and bladder cancers. In pre-clinical models, combined blockade PD-L1 the IL-6 receptor (IL6R) causes synergistic regression tumors substantially improves anti-tumor CD8+ cytotoxic T lymphocyte...

10.1016/j.xcrm.2022.100878 article EN cc-by Cell Reports Medicine 2023-01-01

CD8+ tissue-resident memory T (TRM) cells, marked by CD103 (ITGAE) expression, are thought to actively suppress cancer progression, leading the hypothesis that their presence in tumors may predict response immunotherapy.Here, we test this combining high-dimensional single-cell modalities with bulk tumor transcriptomics from 1868 patients enrolled lung and bladder clinical trials of atezolizumab (anti-programmed cell death ligand 1 (PD-L1)).ITGAE was identified as most significantly...

10.1136/jitc-2020-002231 article EN cc-by-nc Journal for ImmunoTherapy of Cancer 2021-04-01
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