Daniel C Rabe

• Doctor of Philosophy
• Senior Scientist at Tempus

Triple-negative breast cancer (TNBC) patients have the highest risk of recurrence and metastasis. Because they cannot be treated with targeted therapies, and many do not respond to chemotherapy, they represent a clinically underserved group. TNBC is characterized by reduced expression of metastasis suppressors such as Raf Kinase Inhibitory Protein...

The surrounding microenvironment has been implicated in the progression of breast tumors to metastasis. However, the degree to which metastatic breast tumors locally reprogram stromal cells as they disrupt tissue boundaries is not well understood. We used species-specific RNA sequencing in a mouse xenograft model to determine how the metastasis sup...

Hepatocyte growth factor (HGF) and vascular endothelial cell growth factor (VEGF) regulate normal development and homeostasis and drive disease progression in many forms of cancer. Both proteins signal by binding to receptor tyrosine kinases and heparan sulfate (HS) proteoglycans on target cell surfaces. Basic residues comprising the primary HS bin...

Under normal conditions, hepatocyte growth factor (HGF)-induced Met tyrosine kinase (TK) activation is tightly regulated by paracrine ligand delivery, ligand activation at the target cell surface, and ligand activated receptor internalisation and degradation. Despite these controls, HGF/Met signalling contributes to oncogenesis and tumour progressi...

Measuring virus in biofluids is complicated by confounding biomolecules coisolated with viral nucleic acids. To address this, we developed an affinity-based microfluidic device for specific capture of intact severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Our approach used an engineered angiotensin-converting enzyme 2 to capture intac...

Background: Immune-checkpoint blockade (ICB), with or without chemotherapy, is the standard of care for recurrent/metastatic head and neck squamous cell carcinoma (HNSCC). However, only a minority of patients get clinical benefit from it. The combined expression of PD-L1 in a tumor section is currently the only biomarker approved for response predi...

Microfluidic devices have been used for decades to isolate cells, viruses, and proteins using on‐chip immunoaffinity capture using biotinylated antibodies, proteins, or aptamers. To accomplish this, the inner surface is modified to present binding moieties for the desired analyte. While this approach is successful in research settings, it is challe...

Extracellular vesicles (EVs) are small, lipid‐bilayer‐bound particles released by cells that can contain important bioactive molecules, including lipids, RNAs, and proteins. Once released in the extracellular environment, EVs can act as messengers locally as well as to distant tissues to coordinate tissue homeostasis and systemic responses. There i...

[This corrects the article DOI: 10.1371/journal.pone.0054014.].

Aberrant expression of viral-like repeat elements is a common feature of epithelial cancers, and the substantial diversity of repeat species provides a distinct view of the cancer transcriptome. Repeatome profiling across ovarian, pancreatic, and colorectal cell lines identifies distinct clustering independent of tissue origin that is seen with cod...

[This corrects the article DOI: 10.1371/journal.pone.0054014.].

Purpose: To understand how tumor cells alter macrophage biology once they are recruited to triple-negative breast cancer (TNBC) tumors by CCL5. Method: Mouse bone marrow derived macrophage (BMDMs) were isolated and treated with recombinant CCL5 protein alone, with tumor cell conditioned media, or with tumor extracellular vesicles (EVs). Media fr...

Extracellular vesicles (EVs) have emerged as promising candidates in biomarker discovery and diagnostics. Protected by the lipid bilayer, the molecular content of EVs in diverse biofluids are protected from RNases and proteases in the surrounding environment that may rapidly degrade targets of interests. Nonetheless, cryopreservation of EV-containi...

Significance Isolation of sufficient numbers of circulating tumor cells (CTCs) in cancer patients could provide an alternative to invasive tumor biopsies, providing multianalyte cell-based biomarkers that are not available from current plasma circulating tumor DNA sequencing. Given the average prevalence at one CTC per billion blood cells, very lar...

Mitochondrial metabolism is an attractive target for cancer therapy1,2. Reprogramming metabolic pathways could improve the ability of metabolic inhibitors to suppress cancers with limited treatment options, such as triple-negative breast cancer (TNBC)1,3. Here we show that BTB and CNC homology1 (BACH1)4, a haem-binding transcription factor that is...

Triple-negative breast cancers (TNBC) are highly infiltrated by tumor-associated macrophages (TAMs) that promote tumor growth, survival, metastasis and therapeutic resistance. Although cytokines such as CCL5 have been implicated in TAM recruitment to TNBC tumors, the mechanism by which tumor cells educate TAMs is not understood. Here we show that t...

Triple-negative breast cancers (TNBC) are highly infiltrated by tumor-associated macrophages (TAMs) that promote tumor growth, survival, metastasis and therapeutic resistance. Although cytokines such as CCL5 have been implicated in TAM recruitment to TNBC tumors, the mechanism by which tumor cells educate TAMs is not understood. Here we show that t...

Oxidative phosphorylation is an attractive target for cancer therapy. Reprogramming metabolic pathways by promoting oxidative phosphorylation could improve the ability of metabolic inhibitors to suppress cancers with limited treatment options like triple negative breast cancer (TNBC). Here we show that BACH1, a heme-binding transcription factor who...

Metastatic progression of tumors is the major cause of death in patients with triple-negative breast cancer (TNBC). However, since metastasis is a multistep process, unraveling its complexity is a major challenge. One effective way of tackling this question is to study natural blockers of the metastatic process, metastasis suppressors, and identify...

Clear cell renal cell carcinoma (ccRCC) is the most prevalent form of kidney cancer and is frequently associated with loss of von Hippel Lindau (VHL) gene function, resulting in the aberrant accumulation of the hypoxia inducible factor-alpha subunit (HIF-α), which contributes to tumor growth, angiogenesis, and metastasis. Recent studies suggest tha...

Triple-negative breast cancer (TNBC) patients have the highest risk of recurrence and metastasis. Because they cannot be treated with targeted therapies, and many do not respond to chemotherapy, they represent a clinically underserved group. While physiological inhibitors of metastasis (metastasis suppressors) play key roles in regulating tumor gro...

Metastatic progression of tumors is the major cause of death in patients with triple negative breast cancer (TNBC), the most aggressive subtype of breast cancer. However, since metastasis is a multi-step process, unraveling its complexity is a major challenge. One effective way of tackling this question is to study natural blockers of the metastati...

Objective: To measure Met protein content in prostate biopsies guided by fused magnetic resonance and ultrasound imaging, and to measure soluble Met (sMet) protein concentration in plasma samples from patients presenting evidence of prostate cancer. Patients and methods: 345 patients had plasma samples drawn prior to image-guided biopsy of the p...

This abstract is being presented as a short talk in the scientific program. A full abstract is printed in the Proffered Abstracts section (PR02) of the Conference Proceedings. Citation Format: Daniel C. Rabe, Casey Frankenberger, Russell Bainer, Devipriya Sankarasharma, Kiran Chada, Thomas Krausz, Yoav Gilad, Lev Becker, Marsha Rich Rosner. Metasta...

Metastatic progression of tumors is the major cause of death in patients with triple negative breast cancer (TNBC), the most aggressive subtype of breast cancer. However, since metastasis is a multi-step process, unraveling its complexity is a major challenge. One effective way of tackling this question is to study natural blockers of the metastati...

Triple-negative breast cancer (TNBC) patients have the highest risk of recurrence and metastasis. Because they cannot be treated with targeted therapies, and many do not respond to chemotherapy, they represent a clinically underserved group. While physiological inhibitors of metastasis (metastasis suppressors) play key roles in regulating tumor gro...

s: AACR Special Conference: Metabolism and Cancer; June 7-10, 2015; Bellevue, WA The molecular interactions between cancer and stromal cells within the tumor microenvironment enable tumor invasion, intravasation, and metastasis at distant sites. However, the degree to which metastatic breast tumors reprogram stromal cells both locally and at dista...

Signaling by human hepatocyte growth factor (hHGF) via its cell surface receptor (MET) drives mitogenesis, motogenesis and morphogenesis in a wide spectrum of target cell types and embryologic, developmental and homeostatic contexts. Oncogenic pathway activation also contributes to tumorigenesis and cancer progression, including tumor angiogenesis...

Triple negative breast cancer (TNBC) is the most aggressive subtype of breast cancer with very low survival rates. Metastatic progression of tumors is the major cause of death in TNBC patients. Metastatic spread of tumor cells is generally associated with resistance to therapy and poor prognosis. Therefore, there is a clinical need for understandin...

Triple-negative breast cancer (TNBC) patients have the highest risk of recurrence and metastasis. Because they cannot be treated with targeted therapies, and many do not respond to chemotherapy, they represent a clinically underserved group. While physiological inhibitors of metastasis (metastasis suppressors) play key roles in regulating tumor gro...

Cancer progression is critically dependent on specific molecular interactions between tumor cells and their microenvironment, but little is known about the global dynamics of this crosstalk within and across individuals. Here, we used an RNA sequencing approach with species-of-origin information in a xenograft mouse model to computationally resolve...

Triple-negative breast cancer (TNBC) is the most aggressive form of breast cancer. While five-year survival rates have reached 98% in patients treated with anti-ER or anti-HER2 therapies, patients with TNBC have a five-year survival rate of only 24%. Currently, the only form of therapy for these patients is surgery and platinum based chemotherapy....

Tumor invasiveness dysregulates homeostatic processes within tissues, driving both tumor and stroma cells to locally proliferate while also disrupting tissue boundaries and recruiting cells from distal sites to promote metastatic dissemination. Here, we use an RNA sequencing approach in mouse models of invasive and noninvasive breast cancer to dire...

s: AACR Special Conference on Cellular Heterogeneity in the Tumor Microenvironment; February 26 — March 1, 2014; San Diego, CA Triple-negative breast cancer (TNBC) is the most aggressive form of breast cancer. While five-year survival rates have reached 98% in patients treated with anti-ER or anti-HER2 therapies, patients with TNBC have a five-yea...

This National Cancer Institute (NCI) website lists all clinical trials for experimental anti-cancer therapeutics targeting the HGF/Met signaling pathway. This informational resource was developed for the use of researchers, clinicians, patients and patient advocates. It contains more than 350 links to other NCI web-based information resources, incl...

The receptors for hepatocyte and vascular endothelial cell growth factors (MET and VEGFR2, respectively) are critical oncogenic mediators in gastric adenocarcinoma. The purpose is to examine the safety and efficacy of foretinib, an oral multikinase inhibitor targeting MET, RON, AXL, TIE-2, and VEGFR2 receptors, for the treatment of metastatic gastr...

Trial Protocol. (PDF)

CONSORT Checklist. (DOC)

Trial Laboratory Manual. (PDF)

These are the study sites and the approving ethical review boards for participating sites. (DOCX)

This file contains: Table S1. Drug-related modulation of median plasma HGF, sVEGFR2, sMET and VEGF-A concentrations observed over the first dosing interval in the intermittent 5/9 dosing group. Figure S1. Foretinib inhibits gastric tumor xenograft growth and MET activation in mice xenografts. (A) Mice bearing MKN-45 gastric tumors (n = 10 per group...

Renal or kidney cancer accounts for about 3% of all cancer cases reported each year in the U.S. Molecular signatures that define the cancer, such as the loss of functional VHL, are found in both sporadic and familial cases of cancer. In clear cell renal cancer, the transcription factor HIF-2α has been shown to have a distinct role in tumorigenesis....

Renal or kidney cancer accounts for about 3% of all cancer cases reported each year in the US. Molecular signatures that define the cancer, such as the loss of functional VHL, are found in both sporadic and familial cases of cancer. In clear cell renal cancer, the transcription factor HIF-2a has been shown to have a distinct role in tumorigenesis....

Introduction: Under normal conditions, hepatocyte growth factor (HGF)-induced activation of its cell surface receptor, the Met tyrosine kinase (TK), is tightly regulated by paracrine ligand delivery, ligand activation at the target cell surface, and ligand-activated receptor internalization and degradation. Despite these controls, HGF/Met signalin...

A new trimethoxycinnamoyl-2-pyrrolinone alkaloid, langkamide (1), along with the known compounds piplartine (2) and 3,4,5-trimethoxycinnamic acid (3) were isolated from the roots and stems of the shrub Piper sarmentosum ROXB. The structures were established by spectroscopic analyses and comparison of their spectral data with values reported in the...

10528 Background: Hepatocyte growth factor (HGF) stimulates cell proliferation, motility, and morphogenesis upon binding to the receptor tyrosine kinase Met and cell surface heparan sulfate (HS) glycans. NK1 is a truncated HGF isoform consisting of the N-terminal (N) and first kringle (K1) domains of full-length HGF that stimulates all major HGF bi...

Under normal conditions, hepatocyte growth factor (HGF)-induced activation of its cell surface receptor, the Met tyrosine kinase (TK), is tightly regulated by paracrine ligand delivery, ligand activation at the target cell surface, and ligand activated receptor internalization and degradation. Despite these controls, HGF/Met signaling contributes t...

Hepatocyte growth factor (HGF) stimulates cell proliferation, motility, and morphogenesis upon binding to the receptor tyrosine kinase Met and cell surface heparan sulfate (HS) glycans. NK1 is a truncated HGF isoform consisting of the N-terminal (N) and first kringle (K1) domains of full-length HGF that stimulates all major HGF biological activitie...

Signal Transduction via the hepatocyte growth factor (HGF)/Met receptor kinase pathway is critical for normal embryogenesis and adult homeostasis, and aberrant HGF/Met signaling contributes to tumorigenesis and metastasis in many prevalent forms of cancer. By defining the basic molecular mechanisms of pathway activation at the target cell surface,...

Proceedings: AACR 101st Annual Meeting 2010‐‐ Apr 17‐21, 2010; Washington, DC Clear cell renal cell carcinoma (RCC) is the most prevalent form of kidney cancer and is frequently associated with loss of von Hippel Lindau (VHL) gene function, resulting in the aberrant transcriptional activation of hypoxia response genes that contribute to tumor grow...

Foretinib is a potent, orally available, small‐molecule inhibitor of MET and VEGFR2. Significant tumor cell growth inhibition was observed preclinically following treatment in multiple tumor models. Antitumor activity was observed in a previous phase I study in which foretinib was dosed intermittently on days 1–5 every 14 days. This phase I dose‐es...

Hepatocyte growth factor (HGF) stimulates cell proliferation, motility, and morphogenesis upon binding to the receptor tyrosine kinase Met and cell surface heparan sulfate (HS) glycans. NK1 is a truncated HGF isoform consisting of the N-terminal (N) and first kringle (K1) domains of full-length HGF that stimulates all major HGF biological activitie...

Foretinib (formerly GSK1363089) is a small molecule multikinase inhibitor which includes inhibition of MET and VEGFR2. The ongoing phase II study, MET111643, is evaluating the safety and efficacy of 2 dosing schedules (continuous daily dosing and intermittent 5 days on/9 days off dosing) of foretinib as a single agent in pts with metastatic GC. An...

The Department of Defense (DoD) has identified that one of the main complaints of personnel exposed to JP-8 jet fuel is irritant dermatitis. The purpose of this investigation is to describe the JP-8-induced inflammatory cytokine response in skin. JP-8 jet fuel or acetone control (300 microl) was applied to the denuded skin of rats once a day for 7...