Publications by authors named "Oliver Eng"

Metabolic reprogramming of tumor cells is an emerging hallmark of cancer. Among all the changes in cancer metabolism, increased glucose uptake and the accumulation of lactate under normoxic conditions (the "Warburg effect") is a common feature of cancer cells. In this study, we develop a lactate-responsive drug delivery platform by targeting the Warburg effect.

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  • Patients with metastatic colorectal cancer (mCRC) often need palliative care to improve their quality of life, but there are disparities based on sociodemographic factors that affect who receives this care.
  • A study analyzing data from 2016 to 2020 found that only 18% of mCRC patients received palliative treatment, with older patients and those with certain types of metastases less likely to access it.
  • The research highlights that patients with multiple metastatic sites are more likely to receive palliative treatment compared to those with limited sites, and there is a significant influence of age and education level on treatment utilization.
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Purpose: High-grade appendiceal adenocarcinomas (HGAA) with peritoneal metastases (PMs) are associated with poor survival. Hyperthermic intraperitoneal chemotherapy (HIPEC) is a novel treatment approach for unresectable HGAA-PM. However, its influence on immunogenomic profiles has not yet been fully explored.

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Objective: To investigate if underrepresentation of racial and ethnic minorities exists in metastatic colorectal carcinoma (CRC) clinical trials.

Summary Background Data: Representation of vulnerable subpopulations is essential for generalizability of clinical trials. Limited studies to date have investigated racial and ethnic representation of patients enrolled in clinical trials for metastatic CRC.

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Background: KEYNOTE-177 demonstrated that immunotherapy was superior to chemotherapy for microsatellite-instability-high (MSI-high) metastatic colorectal cancer. Colorectal cancer with peritoneal metastases (CRPM) has a poorer prognosis than other metastatic sites, with an unclear role of immunotherapy. We evaluated trends in immunotherapy use and overall survival (OS).

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Activation-induced cytidine deaminase (AID) is a B cell-specific mutator required for antibody diversification. However, it is also implicated in the etiology of several B cell malignancies. Evaluating the AID-induced mutation load in patients at-risk for certain blood cancers is critical in assessing disease severity and treatment options.

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  • - The circadian clock plays a crucial role in regulating the immune system and is important for both disease defense and cancer detection.
  • - Research using single-cell RNA sequencing reveals that certain immune cells, particularly PD-L1-expressing myeloid-derived suppressor cells (MDSCs), oscillate in numbers based on the time of day and suppress the activity of CD8 T cells.
  • - Timing the administration of anti-PD-L1 treatment to coincide with the peak levels of MDSCs enhances its effectiveness, highlighting the importance of circadian rhythms in cancer immunotherapy.
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Introduction: Ovarian metastases from gastrointestinal cancers such as colorectal cancer, also known as Krukenberg tumors (KTs), present unique challenges in management due to diagnostic uncertainty, decreased responsiveness to systemic therapies compared to other sites of metastasis, and associated debilitating symptomatology. Thus, we sought to characterize our institutional outcomes in metastatic colorectal cancer (mCRC) patients with KTs.

Methods: A retrospective single-institution study was performed identifying adult, female patients from 2012 to 2021 with a diagnosis of mCRC.

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Purpose: Conventional surveillance methods are poorly sensitive for monitoring appendiceal cancers (AC). This study investigated the utility of circulating tumor DNA (ctDNA) in evaluating systemic therapy response and recurrence after surgery for AC.

Methods: Patients from two specialized centers who underwent tumor-informed ctDNA testing (Signatera) were evaluated to determine the association between systemic therapy and ctDNA detection.

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Background: Malignant bowel obstruction (MBO) affects 3% to 15% of all cancer patients. In patients with advanced cancer and inoperable MBO, the average survival varies between four to nine weeks. Parenteral nutrition (PN) may improve survival in specific patient populations with malignant bowel obstruction.

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Introduction: Venous thromboembolism (VTE) is a common complication in patients with abdominal malignancies. Despite known associations between pleural mesothelioma and increased VTE risk, the characteristics of VTE in patients with peritoneal mesothelioma (PeM) remain undescribed.

Methods: Patients treated for PeM were retrospectively identified from our institutional database.

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Background: Plasma circulating tumor DNA (ctDNA) is a promising biomarker for metastatic colorectal cancer (mCRC); however, its role in characterizing recurrence sites after mCRC resection remains poorly understood. This single-institution study investigated the timing of ctDNA detection and its levels in the context of recurrence at different sites after mCRC resection.

Study Design: Patients who underwent optimal resection of CRC metastases involving the peritoneum, distant lymph nodes, or liver, with serial postoperative tumor-informed ctDNA assessments (Signatera) were included.

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Background: Malignant bowel obstruction (MBO) affects 3-15% of all cancer patients. In patients with advanced cancer and inoperable MBO, the average survival varies between four to nine weeks. Parenteral nutrition (PN) may improve survival in specific patient populations with malignant bowel obstruction.

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Importance: Advance directive (AD) designation is an important component of advance care planning (ACP) that helps align care with patient goals. However, it is underutilized in high-risk surgical patients with cancer, and multiple barriers contribute to the low AD designation rates in this population.

Objective: To assess the association of early palliative care integration with changes in AD designation among patients with cancer who underwent surgery.

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Cytoreductive surgery (CRS) has now been accepted as an integral component in the management of gastrointestinal and gynecological cancers with peritoneal metastases. Since the adoption of CRS is influenced by access to advanced medical facilities, trained multidisciplinary teams, and funding, there is wide variability in incorporation of CRS into routine clinical practice between high- versus low- and middle-income countries. This review highlights the global trends in the adoption of CRS for peritoneal malignancies with a specific focus on the establishment of CRS programs and barriers to incorporate CRS into routine clinical care in low- and middle-income countries.

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Article Synopsis
  • Primary liver sarcomas are rare and understanding their long-term survival factors is challenging; this study aims to identify those factors.
  • A total of 743 patients were examined, revealing that only 30% underwent surgery, with significant differences in 5-year survival rates based on disease stage and tumor type.
  • The findings highlight that surgical resection significantly improves survival, especially in patients with embryonal sarcoma, while older age and angiosarcoma are linked to worse outcomes.
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Activation-induced cytidine deaminase (AID) is a B cell-specific base editor required during class switch recombination and somatic hypermutation for B cell maturation and antibody diversification. However, it has also been implicated as a factor in the etiology of several B cell malignancies. Evaluating the AID-induced mutation load in patients at-risk for certain types of blood cancers is critical in assessing disease severity and treatment options.

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Background: The delivery of multimodal treatment at a high-volume center is known to optimize the outcomes of gastrointestinal malignancies. However, patients undergoing cytoreductive surgery (CRS) for peritoneal metastases often must 'fragment' their surgical and systemic therapeutic care between different institutions. We hypothesized that this adversely affects outcomes.

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