Publications by authors named "K Kerl"

Hepatoblastoma, the most prevalent pediatric liver cancer, almost always carries a WNT-activating CTNNB1 mutation, yet exhibits notable molecular heterogeneity. To characterize this heterogeneity and identify novel targeted therapies, we perform comprehensive analysis of hepatoblastomas and tumor-derived organoids using single-cell RNA-seq/ATAC-seq, spatial transcriptomics, and high-throughput drug profiling. We identify two distinct tumor epithelial signatures: hepatic 'fetal' and WNT-high 'embryonal', displaying divergent WNT signaling patterns.

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Background: Pituitary neuroendocrine tumors (PitNET) are among the most common intracranial tumors. Despite a frequent benign course, aggressive behavior can occur. Tumor behavior is known to be under the influence of the tumor microenvironment (TME).

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Article Synopsis
  • Peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS) is a diverse and challenging type of cancer that often has poor outcomes, especially in younger patients lacking the SMARCB1 protein.
  • Research indicated that human and mouse PTCL-NOS exhibit similar DNA changes, including the hypermethylation of T-cell genes and the hypomethylation of myeloid development genes, contributing to a complicated tumor ecosystem.
  • A study found that histone deacetylase inhibitors (HDACi), like SAHA, can effectively treat PTCL-NOS by modifying the tumor's microenvironment and improving immune function, paving the way for potential combination therapies.
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Background: Tebentafusp is a novel treatment for patients with metastatic uveal melanoma and often causes cutaneous side effects.

Objectives: The aim of this study was to better characterize these heterogenous cutaneous side effects.

Methods: This prospective cohort study evaluated all patients from a tertiary hospital center who were treated with tebentafusp between January 2019 and June 2023 clinically and assessed skin biopsies histologically.

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Posterior fossa type A (PF-EPN-A, PFA) ependymoma are aggressive tumors that mainly affect children and have a poor prognosis. Histopathology shows significant intratumoral heterogeneity, ranging from loose tissue to often sharply demarcated, extremely cell-dense tumor areas. To determine molecular differences in morphologically different areas and to understand their clinical significance, we analyzed 113 PF-EPN-A samples, including 40 corresponding relapse samples.

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