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1.
J Pain Symptom Manage ; 67(1): e90-e93, 2024 Jan.
Article in English | MEDLINE | ID: mdl-37704116

ABSTRACT

There is a trend toward burnout in palliative care physicians. Due to this, a five-session curriculum has been designed with resiliency tools, coping skills, and spirituality in order to train palliative care fellows in an inpatient setting. More research is needed on this curriculum, but preliminary findings have shown a positive response.


Subject(s)
Burnout, Professional , Physicians , Resilience, Psychological , Humans , Palliative Care , Burnout, Professional/prevention & control
2.
J Soc Work End Life Palliat Care ; 18(2): 146-159, 2022.
Article in English | MEDLINE | ID: mdl-35282796

ABSTRACT

Research has demonstrated a lack of support for hospice caregivers and a higher than average level of self-reported anxiety and depression. While online support groups are gaining popularity, few protocols have been published, little research has demonstrated the skills required to facilitate, and virtually no data has explored the clinical outcomes affiliated with participation in such groups. This paper presents the preliminary experience and results of a clinical trial testing the use of online support groups designed to both educate and provide social support to caregivers of hospice cancer patients. A detailed protocol outlines educational strategies, discussion questions, and a blueprint outlining ways to engage participants. A review of field notes completed by the interventionist reveal specific facilitation skills and strategies used to engage participants. Finally, preliminary analysis of 78 participants shows the group is having a statistically significant impact on the caregiver depression.


Subject(s)
Hospice Care , Hospices , Neoplasms , Social Media , Caregivers , Humans , Neoplasms/therapy , Review Literature as Topic , Self-Help Groups
3.
ACS Appl Bio Mater ; 4(4): 3178-3188, 2021 04 19.
Article in English | MEDLINE | ID: mdl-35014405

ABSTRACT

Bladder carcinoma is the most expensive tumor type to treat on a cost-per-patient basis from diagnosis to death. Treatment with Bacillus Calmette Guerin (BCG) instillation is the only approved immunotherapy in the clinic for the remission of superficial bladder carcinoma. Unfortunately, frequent relapses, high local morbidity, risk of systemic mycobacterial infection, and occasional supply chain interruptions limit the utility of BCG for bladder cancer treatment. It is well known that BCG utilizes an adhesin protein known as fibronectin attachment protein that possesses a crucial RWFV peptide sequence for binding to the bladder tumor microenvironment prior to the initiation of the immunotherapeutic response. We report a RWFV-targeted, pH-responsive stabilized lipid nucleic acid nanoparticle (LNP) vehicle for the effective delivery of an immunotherapeutic oligonucleotide, CpG, that is assembled using a glass microfluidic Chemtrix 3221 reactor. Our small-angle X-ray scattering studies revealed a layer-by-layer assembly of the oligonucleotides with a repeat distance of 6.04 nm within the LNP. Using flow cytometry to evaluate the different cell types found in the bladder tumor microenvironment, RWFV-targeted LNPs were found to attach specifically to fibronectin-secreting cells in culture during a 2 h incubation period. The trafficking and cellular fate of these targeted LNPs were revealed by confocal microscopy of RAW264.7 macrophages to enter the endocytotic pathway within 4 h post treatment. Importantly, control studies reveal that only the pH-sensitive LNP formulation is capable of efficiently releasing the payload within 12 h. As a result, the targeted pH-sensitive LNP resulted in higher expression levels of costimulatory molecules CD83, CD 86, and MHC II, while also inducing higher levels of TNF-α secretion from macrophages. These results demonstrate that RWFV-targeted, pH-sensitive LNP formulations are capable of maximum immunotherapeutic response, potentially making them a highly efficient, lower risk, and readily manufactured alternative to BCG immunotherapy.


Subject(s)
BCG Vaccine/immunology , Biocompatible Materials/chemistry , Liposomes/chemistry , Nanoparticles/chemistry , Peptides/chemistry , Urinary Bladder Neoplasms/therapy , Animals , BCG Vaccine/chemistry , Cell Line , Cell Survival , Hydrogen-Ion Concentration , Materials Testing , Mice , Particle Size , Urinary Bladder Neoplasms/immunology , Urinary Bladder Neoplasms/pathology
4.
Int J Nanomedicine ; 14: 9547-9561, 2019.
Article in English | MEDLINE | ID: mdl-31824150

ABSTRACT

BACKGROUND: Bladder cancer is the fourth most common cancer in men and eleventh most common in women. Combination therapy using a gene and chemotherapeutic drug is a potentially useful strategy for treating bladder cancer in cases where a synergistic benefit can be achieved successfully. This approach relies on developing drug combinations using carrier systems that can load both hydrophilic genes and hydrophobic drugs. Ideally, the formulation for carrier system should be free of traditional high shear techniques such as sonication and extrusion to reduce shear-induced nucleic acid strand breakage. Moreover, the system should be able to protect the nucleic acid from enzymatic attack and deliver it specifically to the tumor site. MATERIALS AND METHODS: A dual payload carrier system that was formulated using a simple flow mixing technique to complex anionic plasmid (EGFP-NLS) using a cationic polymer (CD-PEI2.5kD) followed by coating of the polyplex using lipid membranes. The resulting lipid-coated polyplex (LCP) formulations are targeted to bladder cancer cells by employing a bacterial adhesive peptide sequence, RWFV, that targets the LCP to the tumor stroma for efficiently delivering reporter plasmid, EGFP-NLS and a model small molecule drug, pyrene, to the cancer cells. RESULTS: Encapsulation efficiency of the peptide targeted carrier for the plasmid was 50% ± 0.4% and for pyrene it was 16% ± 0.4%. The ability of the targeted LCP to transfect murine bladder cancer cells was 4-fold higher than LCP bearing a scrambled peptide sequence. Fluorescence of cells due to pyrene delivery was highest after 4 hrs using targeted LCP. Finally, we loaded the peptide targeted LCP with anti-cancer agent, curcumin. The targeted formulation of curcumin resulted in only 45% viable cancer cells at a concentration of 5 µg/mL, whereas the empty and non-targeted formulations did not result any significant cell death. CONCLUSION: These results demonstrate the specificity of the targeting peptide sequence in engaging tumor cells and the utility of the developed carrier platform to deliver a dual payload to bladder tumor cells.


Subject(s)
Antineoplastic Agents/administration & dosage , Drug Delivery Systems/methods , Lipopeptides/chemistry , Plasmids/administration & dosage , Urinary Bladder Neoplasms/drug therapy , Animals , Cell Line, Tumor , Curcumin/administration & dosage , Gene Transfer Techniques , Mice , Polyethyleneimine/chemistry , Pyrenes/administration & dosage , Transfection , Urinary Bladder Neoplasms/pathology
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