A qualitative study on the healthcare experiences of adolescents and young adults (AYA) with an uncertain or poor cancer prognosis.

PURPOSE: Treatment advancements have improved life expectancy for adolescents and young adults (AYAs) with an uncertain and/or poor cancer prognosis (UPCP) and change clinical practice. This improved survival requires a different approach and specific expertise to meet the needs of this group. The aim of this study is to explore the health care experiences of AYAs with a UPCP. METHODS: We conducted a multicenter qualitative study using semi-structured interviews and elements of the grounded theory by Corbin and Strauss. RESULTS: Interviews were conducted with 46 AYAs with a UPCP. They were on average 33.4 years old (age range 23-44), and most of them were woman (63%). Additionally, five AYAs with a UPCP participated as AYA research partners in two focus groups. They were on average 31.8 years old and four of them were woman. AYAs with a UPCP reported four pillars for a satisfied healthcare experience: (1) trust, (2) tailored communication, (3) holistic empathic open attitude, and (4) care being offered (pro-)actively. They reported both optimal and suboptimal experiences about distrust based on a delay in diagnostic trajectory, lack of tailored communication and discussion of sensitive topics, preference for a holistic approach, and struggles with finding the way to get additional healthcare support. CONCLUSION: For AYAs with a UPCP, it is important that both age-specific issues and issues related to the UPCP are understood and addressed; however, this seems not yet optimally implemented in clinical practice. This emphasizes the importance of providing this patient group with tailored care incorporating both aspects. Healthcare professionals need to be supported with training and tools to understand the healthcare needs of AYAs with a UPCP. AYAs can be empowered to take more control over their own healthcare needs.

Involving adolescents and young adults (AYA) with an uncertain or poor cancer prognosis as research partners.

BACKGROUND: The interest in patient involvement is increasing in health research, however, is not yet well described in adolescents and young adults (AYA) with palliative cancer, such as AYAs with an uncertain and/or poor cancer prognosis (UPCP). This study aimed to document the process of involving AYAs with a UPCP as partners in research including their experiences, the impact, and our lessons learned. MATERIALS AND METHODS: AYAs with a UPCP were recruited via healthcare professionals and patients to involve as research partners in the qualitative interview study. To define their role and tasks in each research phase we used the participation matrix. RESULTS: In total six AYAs with a UPCP were involved as research partners and five as co-thinkers. They were involved in initiating topics, developing study design, interviewing, analyzing data, and dissemination of information. Together with the researcher, they co-produced the information letters and interview guides and implemented aftercare and extra support. The research partners ensured that the data was relevant, correctly interpreted and that results were translated to peers and clinical practice. AYAs themselves felt useful, found people who understand their challenges, and were able to create a legacy. CONCLUSION: The benefits of involving AYAs with a UPCP as research partners cannot be stressed enough, both for the study as well as for the AYAs themselves, but there are challenges. Researchers should anticipate and address those challenges during the planning phase of the study. This article provides practical tips on how to do so.

"Finding my way in a maze while the clock is ticking": The daily life challenges of adolescents and young adults with an uncertain or poor cancer prognosis.

Introduction: Increasingly more adolescent and young adult (AYA, aged 18-39 years) patients with an uncertain and/or poor cancer prognosis (UPCP) are gaining life-years because of novel treatments or refinement of established therapies, and sometimes even face the prospect of long-term disease control. This study aims to examine the challenges of AYAs with a UPCP in daily life to inform the development of AYA care programs. Methods: Semi-structured in-depth interviews were conducted among AYAs with a UPCP. Since we expected differences in experiences between three AYA subgroups, we interviewed patients of these subgroups (1): traditional survivors (2), low-grade glioma survivors, and (3) new survivors. Interviews were analyzed using elements of grounded theory. AYA patients were actively involved as research partners. Results: In total 46 AYAs with UPCP participated and shared their challenges in daily life. They were on average 33.4 years old (age range 23-44) and most of them were women (63%). The most common tumor types were low-grade gliomas (16), sarcomas (7), breast cancers (6), and lung cancers (6). We identified five primary themes: (1) feeling inferior to previous self and others (e.g. feeling useless, who wants me in a relationship), (2) feeling of being alone (e.g. lonely thoughts, nobody really gets me), (3) ongoing confrontation (e.g. it is always there, own decline), (4) grief about life (e.g. grief about life I did not get, grief about old life), and (5) loss of control over the future (e.g. not able to make future plans, waiting for growth). Although all of the challenges were identified in the three AYA subgroups, the perceived intensity of the challenges differed slightly between the subgroups. Discussion: AYAs living with a UPCP experience challenges associated to their sense of altered identity, their position in the social network, and the future uncertainties. This study highlights the importance to recognize and acknowledge the unique challenges of this group. To provide age-specific care, it is important to embed acceptance and commitment therapy and AYA peer support within the healthcare system and other care programs to support AYAs to live well with their disease.

A qualitative study on the involvement of adolescents and young adults (AYAs) with cancer during multiple research phases: "plan, structure, and discuss".

BACKGROUND: Including the lived experience of patients in research is important to improve the quality and outcomes of cancer studies. It is challenging to include adolescents and young adults (AYAs) cancer patients in studies and this accounts even more for AYAs with an uncertain and/or poor prognosis (UPCP). Little is known about involving these AYAs in scientific research. However, by including their lived experiences during multiple phases of research, the quality of the study improves and therefore also the healthcare and quality of life of this unique patient group. We first aimed to document experiences of AYAs and researchers with AYA involvement initiatives using the Involvement Matrix and the nine phases of the research cycle. Second, we aimed to map the (expected) challenges and recommendations, according to patients and researchers, for AYA involvement in each research phase. METHODS: Thirteen semi-structured qualitative interviews were conducted with AYAs and researchers from February 2020 to May 2020. A thematic analysis codebook with a critical realistic framework was used to analyze the data. RESULTS: AYAs and researchers were predominantly positive about AYA involvement within six of the nine phases of research: identify and prioritize topics, develop study design, disseminate information, implement, and evaluate findings. Not all respondents were positive about AYA involvement in the following three phases: formulate research questions, conduct research, and analysis and interpretation. However, few respondents had experience with AYA-researcher collaborations in multiple phases of the research cycle. Last, the results indicate the importance of adding a role (practical support) and two phases (grant application and recruitment) to the Involvement Matrix. CONCLUSION: Our results show the added value of AYA (with a UPCP) involvement within scientific research projects. We recommend researchers to actively think about the level and phase of collaboration prior to each research project, by involving and brainstorming with AYAs at the conception and throughout research projects. Besides, to enhance fruitful participation, we suggest thoroughly discussing the pros and cons of collaboration for each phase together with AYAs via the proposed Involvement Matrix to support transparency. We recommend to report experiences, choices, and results of AYA involvement.

Currently, more and more collaborations exist between patients and researchers in scientific research projects. Patient-research partnerships give patients the opportunity to add value to research by sharing their own experiences. Besides, patients themselves feel heard in their needs and are empowered. However, inclusion of young patients, like young adults with a cancer diagnosis, remains limited in research itself and specifically in the form of active involvement and collaboration initiatives. Thereby little is known about their age-specific problems and needs. This seems especially the case in young patient populations like adolescents and young adults (AYAs) with cancer who have a poor or uncertain prognosis. By analyzing the experiences of AYAs and researchers, this study aimed to unravel if collaboration within research projects is possible, and what defines the added value of such collaboration. Our study shows that researchers, as well as AYAs, think positively about collaborating during most phases of scientific research projects, even for challenging populations like AYAs with an uncertain and/or poor prognosis. Creating awareness of the possibilities of AYA involvement might increase involvement initiatives in future projects. This can be done using the Involvement Matrix. This is an existing tool which we further expanded according to our findings. Researchers and AYAs can fill in this tool (a table) together to plan, structure and discuss their collaboration. Our findings can be validated and might serve as a starting point for other patient groups.

Molecular Detection of Venous Thrombosis in Mouse Models Using SPECT/CT.

The efficacy of thrombolysis is inversely correlated with thrombus age. During early thrombogenesis, activated factor XIII (FXIIIa) cross-links α2-AP to fibrin to protect it from early lysis. This was exploited to develop an α2-AP-based imaging agent to detect early clot formation likely susceptible to thrombolysis treatment. In this study, this imaging probe was improved and validated using 111In SPECT/CT in a mouse thrombosis model. In vitro fluorescent- and 111In-labelled imaging probe-to-fibrin cross-linking assays were performed. Thrombus formation was induced in C57Bl/6 mice by endothelial damage (FeCl3) or by ligation (stenosis) of the infrarenal vena cava (IVC). Two or six hours post-surgery, mice were injected with 111In-DTPA-A16 and ExiTron Nano 12000, and binding of the imaging tracer to thrombi was assessed by SPECT/CT. Subsequently, ex vivo IVCs were subjected to autoradiography and histochemical analysis for platelets and fibrin. Efficient in vitro cross-linking of A16 imaging probe to fibrin was obtained. In vivo IVC thrombosis models yielded stable platelet-rich thrombi with FeCl3 and fibrin and red cell-rich thrombi with stenosis. In the stenosis model, clot formation in the vena cava corresponded with a SPECT hotspot using an A16 imaging probe as a molecular tracer. The fibrin-targeting A16 probe showed specific binding to mouse thrombi in in vitro assays and the in vivo DVT model. The use of specific and covalent fibrin-binding probes might enable the clinical non-invasive imaging of early and active thrombosis.

"Double awareness"-adolescents and young adults coping with an uncertain or poor cancer prognosis: A qualitative study.

Introduction: Adolescents and young adults with an uncertain or poor cancer prognosis (UPCP) are confronted with ongoing and unique age-specific challenges, which forms an enormous burden. To date, little is known about the way AYAs living with a UPCP cope with their situation. Therefore, this study explores how AYAs with a UPCP cope with the daily challenges of their disease. Method: We conducted semi-structured in-depth interviews among AYAs with a UPCP. Patients of the three AYA subgroups were interviewed (traditional survivors, new survivors, low-grade glioma survivors), since we expected different coping strategies among these subgroups. Interviews were analyzed using elements of the Grounded Theory by Corbin and Strauss. AYA patients were actively involved as research partners. Results: In total 46 AYAs with UPCP participated, they were on average 33.4 years old (age range 23-44) and most of them were woman (63%). Most common tumor types were low-grade gliomas (16), sarcomas (7), breast cancers (6) and lung cancers (6). We identified seven coping strategies in order to reduce the suffering from the experienced challenges: (1) minimizing impact of cancer, (2) taking and seeking control, (3) coming to terms, (4) being positive, (5) seeking and receiving support, (6) carpe diem and (7) being consciously alive. Conclusion: This study found seven coping strategies around the concept of 'double awareness' and showcases that AYAs are able to actively cope with their disease but prefer to actively choose life over illness. The findings call for CALM therapy and informal AYA support meetings to support this group to cope well with their disease.

Rapid Internalization and Nuclear Translocation of CCL5 and CXCL4 in Endothelial Cells.

The chemokines CCL5 and CXCL4 are deposited by platelets onto endothelial cells, inducing monocyte arrest. Here, the fate of CCL5 and CXCL4 after endothelial deposition was investigated. Human umbilical vein endothelial cells (HUVECs) and EA.hy926 cells were incubated with CCL5 or CXCL4 for up to 120 min, and chemokine uptake was analyzed by microscopy and by ELISA. Intracellular calcium signaling was visualized upon chemokine treatment, and monocyte arrest was evaluated under laminar flow. Whereas CXCL4 remained partly on the cell surface, all of the CCL5 was internalized into endothelial cells. Endocytosis of CCL5 and CXCL4 was shown as a rapid and active process that primarily depended on dynamin, clathrin, and G protein-coupled receptors (GPCRs), but not on surface proteoglycans. Intracellular calcium signals were increased after chemokine treatment. Confocal microscopy and ELISA measurements in cell organelle fractions indicated that both chemokines accumulated in the nucleus. Internalization did not affect leukocyte arrest, as pretreatment of chemokines and subsequent washing did not alter monocyte adhesion to endothelial cells. Endothelial cells rapidly and actively internalize CCL5 and CXCL4 by clathrin and dynamin-dependent endocytosis, where the chemokines appear to be directed to the nucleus. These findings expand our knowledge of how chemokines attract leukocytes to sites of inflammation.

Galectin-1 and platelet factor 4 (CXCL4) induce complementary platelet responses in vitro.

Galectin-1 (gal-1) is a carbohydrate-binding lectin with important functions in angiogenesis, immune response, hemostasis and inflammation. Comparable functions are exerted by platelet factor 4 (CXCL4), a chemokine stored in the α-granules of platelets. Previously, gal-1 was found to activate platelets through integrin αIIbß3. Both gal-1 and CXCL4 have high affinities for polysaccharides, and thus may mutually influence their functions. The aim of this study was to investigate a possible synergism of gal-1 and CXCL4 in platelet activation. Platelets were treated with increasing concentrations of gal-1, CXCL4 or both, and aggregation, integrin activation, P-selectin and phosphatidyl serine (PS) exposure were determined by light transmission aggregometry and by flow cytometry. To investigate the influence of cell surface sialic acid, platelets were treated with neuraminidase prior to stimulation. Gal-1 and CXCL4 were found to colocalize on the platelet surface. Stimulation with gal-1 led to integrin αIIbß3 activation and to robust platelet aggregation, while CXCL4 weakly triggered aggregation and primarily induced P-selectin expression. Co-incubation of gal-1 and CXCL4 potentiated platelet aggregation compared with gal-1 alone. Whereas neither gal-1 and CXCL4 induced PS-exposure on platelets, prior removal of surface sialic acid strongly potentiated PS exposure. In addition, neuraminidase treatment increased the binding of gal-1 to platelets and lowered the activation threshold for gal-1. However, CXCL4 did not affect binding of gal-1 to platelets. Taken together, stimulation of platelets with gal-1 and CXCL4 led to distinct and complementary activation profiles, with additive rather than synergistic effects.

Extracellular Vesicles as Biomarkers in Cardiovascular Disease; Chances and Risks.

The field of extracellular vesicles (EV) is rapidly expanding, also within cardiovascular diseases. Besides their exciting roles in cell-to-cell communication, EV have the potential to serve as excellent biomarkers, since their counts, content, and origin might provide useful information about the pathophysiology of cardiovascular disorders. Various studies have already indicated associations of EV counts and content with cardiovascular diseases. However, EV research is complicated by several factors, most notably the small size of EV. In this review, the advantages and drawbacks of EV-related methods and applications as biomarkers are highlighted.

Laminar Flow-based Assays to Investigate Leukocyte Recruitment on Cultured Vascular Cells and Adherent Platelets.

The recruitment of leukocytes upon injury or inflammation to sites of injury or tissue damage has been investigated during recent decades and has resulted in the concept of the leukocyte adhesion cascade. However, the exact molecular mechanisms involved in leukocyte recruitment have not yet been fully identified. Since leukocyte recruitment remains an important subject in the field of infection, inflammation, and (auto-) immune research, we present a straightforward laminar flow-based assay to study underlying mechanisms of the adhesion, de-adhesion, and transmigration of leukocytes under venous and arterial flow regimes. The in vitro assay can be used to study the molecular mechanisms that underlie the interactions between leukocytes and their cellular partners in different models of vascular inflammation. This protocol describes a laminar flow-based assay using a parallel-flow chamber and an inverted phase contrast microscope connected to a camera to study the interactions of leukocytes and endothelial cells or platelets, which can be visualized and recorded then analyzed offline. Endothelial cells, platelets, or leukocytes can be pretreated with inhibitors or antibodies to determine the role of specific molecules during this process. Shear conditions, i.e. arterial or venous shear stress, can be easily adapted by the viscosity and flow rate of the perfused fluids and the height of the channel.

Deletion of junctional adhesion molecule A from platelets increases early-stage neointima formation after wire injury in hyperlipidemic mice.

Platelets play an important role in the pathogenesis of vascular remodelling after injury. Junctional adhesion molecule A (JAM-A) was recently described to regulate platelet activation. Specific deletion of JAM-A from platelets resulted in increased reactivity and in accelerated progression of atherosclerosis. The aim of this study was to investigate the specific contribution of platelet-derived JAM-A to neointima formation after vascular injury. Mice with or without platelet-specific (tr)JAM-A-deficiency in an apolipoprotein e (apoe-/- ) background underwent wire-induced injury of the common carotid artery. Ex vivo imaging by two-photon microscopy revealed increased platelet coverage at the site of injury in trJAM-A-deficient mice. Cell recruitment assays showed increased adhesion of monocytic cells to activated JAM-A-deficient platelets than to control platelets. Inhibition of αM ß2 or GPIbα, but not of CD62P, suppressed those differences. Up to 4 weeks after wire injury, intimal neoplasia and neointimal cellular content were analysed. Neointimal lesion area was increased in trJAM-A-/- apoe-/- mice and the lesions showed an increased macrophage accumulation and proliferating smooth muscle cells compared with trJAM-A+/+ apoe-/- littermates 2 weeks, but not 4 weeks after injury. Re-endothelialization was decreased in trJAM-A-/- apoe-/- mice compared with controls 2 weeks after injury, yet it was complete in both groups after 4 weeks. A platelet gain of function by deletion of JAM-A accelerates neointima formation only during earlier phases after vascular injury, through an increased recruitment of mononuclear cells. Thus, the contribution of platelets might become less important when neointima formation progresses to later stages.

Infectious Bronchitis Coronavirus Inhibits STAT1 Signaling and Requires Accessory Proteins for Resistance to Type I Interferon Activity.

UNLABELLED: The innate immune response is the first line of defense against viruses, and type I interferon (IFN) is a critical component of this response. Similar to other viruses, the gammacoronavirus infectious bronchitis virus (IBV) has evolved under evolutionary pressure to evade and counteract the IFN response to enable its survival. Previously, we reported that IBV induces a delayed activation of the IFN response. In the present work, we describe the resistance of IBV to IFN and the potential role of accessory proteins herein. We show that IBV is fairly resistant to the antiviral state induced by IFN and identify that viral accessory protein 3a is involved in resistance to IFN, as its absence renders IBV less resistant to IFN treatment. In addition to this, we found that independently of its accessory proteins, IBV inhibits IFN-mediated phosphorylation and translocation of STAT1. In summary, we show that IBV uses multiple strategies to counteract the IFN response. IMPORTANCE: In the present study, we show that infectious bronchitis virus (IBV) is resistant to IFN treatment and identify a role for accessory protein 3a in the resistance against the type I IFN response. We also demonstrate that, in a time-dependent manner, IBV effectively interferes with IFN signaling and that its accessory proteins are dispensable for this activity. This study demonstrates that the gammacoronavirus IBV, similar to its mammalian counterparts, has evolved multiple strategies to efficiently counteract the IFN response of its avian host, and it identifies accessory protein 3a as multifaceted antagonist of the avian IFN system.