Publications by authors named "Christiana Crook"

The incidence of neuroendocrine tumors (NETs) in the US is rising, with 8.3 cases per 100,000 individuals diagnosed in 2018 compared with 6.98 cases per 100,000 individuals diagnosed in 2012.

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Biliary tract cancers are a rare diagnosis with a rising incidence. Up to 20% of patients have peritoneal metastases, resulting in symptoms of ascites, abdominal pain and potential bowel obstruction. A standard of care systemic treatment comprises gemcitabine, cisplatin and durvalumab (gem/cis/durva).

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Ductal progenitor-like cells are a sub-population of ductal cells in the adult human pancreas that have the potential to contribute to regenerative medicine. However, the microenvironmental cues that regulate their activation are poorly understood. Here, we establish a 3-dimensional suspension culture system containing six defined soluble factors in which primary human ductal progenitor-like and ductal non-progenitor cells survive but do not proliferate.

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Purpose Of Review: This review provides an update on the developments of adjuvant and neoadjuvant liver-directed and systemic therapy options for patients with resectable hepatocellular carcinoma.

Recent Findings: Data on liver-directed treatment in the adjuvant and neoadjuvant settings are sparse and results are conflicting; many studies suggest that optimizing patient selection criteria is a key milestone required to improve study design and clinical benefit to patients. Systemic treatment options are primarily focused on investigation of anti-PD-1/L1 immunotherapeutic agents, either alone or in combination with other drugs.

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Neuroendocrine tumors are a rare type of cancer found in hormone-producing cells throughout the body. Research on disease-specific patient education assessments in this population is lacking. We previously demonstrated the feasibility and validity of NET VITALS, a patient-centered self-assessment designed to improve patients' knowledge of their neuroendocrine tumor diagnosis/treatment and facilitate communication with their physician.

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Background: Patient preferences (quantity vs quality of life; present vs future health) have not been investigated in patients with neuroendocrine tumors (NETs). The goal of this cross-sectional study was to evaluate patient values toward treatment goals and competing health outcomes among adults with NETs.

Patients And Methods: Patients with well-differentiated, grade 1 or 2, advanced NETs starting a new systemic therapy completed 4 tools: (1) Health Outcomes Tool, which ranks the importance of 4 outcomes (survival, function/independence, freedom from pain, freedom from symptoms); (2) Attitude Scale, which identifies the extent to which patients agree with statements related to health outcomes; (3) Now versus Later Tool, which ranks the relative importance of quality of life (QoL) now versus 1 and 5 years from now; and (4) Prognosis and Treatment Perceptions Questionnaire, which identifies the amount of information the patient prefers to receive about their disease and treatment, the patient's treatment goal, the patient's perception of the physician's treatment goal, and self-reported health status.

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Objectives: There is a lack of effective patient education regarding diagnosis/treatment of neuroendocrine tumors (NETs), possibly related to their rare incidence.

Methods: In this cross-sectional survey study, NET patients attending the 2019 Annual Los Angeles NET Education Conference were approached to complete NET VITALS, a self-assessment tool gauging patients' perception/awareness of their NET diagnosis/treatment, and a satisfaction survey. Feasibility of NET VITALS, patient satisfaction with NET VITALS, and patients' perception/awareness of their NET diagnosis/treatment were evaluated.

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Biliary tract cancers (BTCs) are a heterogeneous group of malignancies arising from the epithelium of the biliary tree [...

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Neuroendocrine tumors are a rare and heterogenous group of neoplasms that arise from hormone-producing cells throughout the body, with the greatest increase in incidence occurring among older adults aged ≥ 65 years. Despite this, there is currently a lack of data regarding the safety and efficacy of systemic treatment for older adults with neuroendocrine tumors. In this review, we provide a synopsis of the current standard-of-care pharmacotherapeutic treatments for neuroendocrine tumors, with an emphasis on available data in older adults.

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Article Synopsis
  • Older adults (≥65 years) with gastrointestinal cancers undergoing chemotherapy are at high risk for hospitalization due to treatment-related side effects.
  • A study analyzed 199 older patients with GI cancers and found that factors like female sex, cardiac issues, and cancer type increased hospitalization risk.
  • Specifically, cardiac comorbidity was identified as a significant predictor for hospitalizations, highlighting the need for further research on geriatric assessments in this group.
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Organoids-cellular aggregates derived from stem or progenitor cells that recapitulate organ function in miniature-are of growing interest in developmental biology and medicine. Organoids have been developed for organs and tissues such as the liver, gut, brain, and pancreas; they are used as organ surrogates to study a wide range of questions in basic and developmental biology, genetic disorders, and therapies. However, many organoids reported to date have been cultured in Matrigel, which is prepared from the secretion of Engelbreth-Holm-Swarm mouse sarcoma cells; Matrigel is complex and poorly defined.

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Significant progress has been made in recent years in characterizing human multipotent progenitor cells (hMPCs) of the early pancreas; however, the identity and persistence of these cells during the second trimester, after the initiation of branching morphogenesis, remain elusive. Additionally, studies on hMPCs have been hindered by few isolation methods that allow for the recovery of live cells. Here, we investigated the tip progenitor domain in the branched epithelium of human fetal pancreas between 13.

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