Socioeconomic Factors and Adherence to Health Care Recommendations in Adolescent and Young Adult Cancer Survivors

The murine metastatic microenvironment of experimental brain metastases of breast cancer differs by host age in vivo: a proteomic study

Breast cancer in young patients is known to exhibit more aggressive biological behavior and is associated with a less favorable prognosis than the same disease in older patients, owing in part to an increased incidence of brain metastases. The mechanistic explanations behind these findings remain poorly understood. We recently reported that young mice, in comparison to older mice, developed significantly greater brain metastases in four mouse models of triple-negative and luminal B breast cancer. Here we have performed a quantitative mass spectrometry-based proteomic analysis to identify proteins potentially contributing to age-related disparities in the development of breast cancer brain metastases. Using a mouse hematogenous model of brain-tropic triple-negative breast cancer (MDA-MB-231BR), we harvested subpopulations of tumor metastases, the tumor-adjacent metastatic microenvironment, and uninvolved brain tissues via laser microdissection followed by quantitative proteomic analysis using high resolution mass spectrometry to characterize differentially abundant proteins potentially contributing to age-dependent rates of brain metastasis. Pathway analysis revealed significant alterations in signaling pathways, particularly in the metastatic microenvironment, modulating tumorigenesis, metabolic processes, inflammation, and neuronal signaling. Tenascin C (TNC) was significantly elevated in all laser microdissection (LMD) enriched compartments harvested from young mice relative to older hosts, which was validated and confirmed by immunoblot analysis of whole brain lysates. Additional in vitro studies including migration and wound-healing assays demonstrated TNC as a positive regulator of tumor cell migration. These results provide important new insights regarding microenvironmental factors, including TNC, as mechanisms contributing to the increased brain cancer metastatic phenotype observed in young breast cancer patients.

History and current status of the survivorship care program at the University of California, Los Angeles Jonsson Comprehensive Cancer Center (UCLA JCCC)

As one of the first comprehensive cancer centers to receive a designation from the National Cancer Institute, the Jonsson Comprehensive Cancer Center at UCLA Health has served as a leader in survivorship research for three decades. A clinical survivorship program for childhood cancer survivors was established in the early 2000s as this became a standard of care in pediatric oncology. However, it was not until receipt of external funding and the establishment of a Survivorship Center of Excellence in 2006 that clinical services were expanded to include adult cancer survivors, as well as survivorship care delivery research in the community and at affiliated clinical sites. When this funding ended, there was limited institutional support for expansion of the program, and so the clinical programs did not develop further. Recently, there has been renewed interest in obtaining Commission on Cancer accreditation, and this has prompted an institutional assessment of survivorship care to inform future activities for system-wide program development. As oncology care expands throughout a large regional health system network, the future survivorship program will need to serve as a common resource for the entire health system by providing a repository of specialized services and resources as well as standard processes and pathways for a cohesive approach to care. IMPLICATIONS FOR CANCER SURVIVORS: There are many challenges to development and sustainment of cancer survivorship programs, even in NCI-designated comprehensive cancers. As the delivery of cancer care services expands and becomes more integrated in large health care systems, innovative strategies are needed to ensure delivery of tailored care to cancer survivors through acute treatment and beyond.

Making decisions for follow-up chemotherapy based on digital patient reported outcomes data in patients with multiple myeloma and other M protein diseases - A mixed method study

OBJECTIVES

To test if Patient Reported Outcomes (PRO) data can replace physical on-site consultation in determining if patients with multiple myeloma, AL amyloidosis, or plasma cell leukemia are ready for their next bortezomib treatment without dose reduction.

METHODS

We developed an online questionnaire addressing common side effects to bortezomib and an algorithm stratifying patients according to their responses and asked them to complete the questionnaire the day before attending the clinic. Applying a mixed-method study design of PRO data, time registrations, and interviews with patients and healthcare professionals, we tested the usability of electronic PRO data forming the basis of decision-making on whether patients are physically fit for the next treatment with an unchanged dose.

RESULTS

The questionnaire and the associated algorithm were able to identify patients who were physically fit for treatment without need for further consultation, with a positive predictive value of 98 %. The method proved to be feasible for all groups of patients regardless of age and educational level. Patients and healthcare professionals found the online questionnaire to be advantageous and flexible.

CONCLUSION

The use of PRO data to evaluate patients prior to bortezomib treatment is safe and feasible. Patients prefer to report their side effects themselves as it provides them with more freedom during their treatment.

Disparities in care and outcomes for adolescent and young adult lymphoma patients

Though survival outcomes among adolescents and young adults (AYAs) with lymphoma have improved over the last three decades, socially vulnerable populations including non-White, low-income, and publicly insured groups continue to trail behind on survival curves. These disparities, while likely the result of both biological and non-biological factors, can be largely attributed to inequities in care over the full cancer continuum. Nationally representative studies have demonstrated that from diagnosis through therapy and into long-term survivorship, socially vulnerable AYAs with lymphoma face barriers to care that impact their short and long-term survival. Thus, improving outcomes for all AYAs with lymphoma requires dedicated study to understand, and then address the unique challenges faced by non-White and low-income lymphoma populations within this age group.