Sustained proliferation in cancer: mechanisms and novel therapeutic targets

Proliferation is an important part of cancer development and progression. This is manifest by altered expression and/or activity of cell cycle related proteins. Constitutive activation of many signal transduction pathways also stimulates cell growth. Early steps in tumor development are associated with a fibrogenic response and the development of a hypoxic environment which favors the survival and proliferation of cancer stem cells. Part of the survival strategy of cancer stem cells may manifested by alterations in cell metabolism. Once tumors appear, growth and metastasis may be supported by overproduction of appropriate hormones (in hormonally dependent cancers), by promoting angiogenesis, by undergoing epithelial to mesenchymal transition, by triggering autophagy, and by taking cues from surrounding stromal cells. A number of natural compounds (e.g., curcumin, resveratrol, indole-3-carbinol, brassinin, sulforaphane, epigallocatechin-3-gallate, genistein, ellagitannins, lycopene and quercetin) have been found to inhibit one or more pathways that contribute to proliferation (e.g., hypoxia inducible factor 1, nuclear factor kappa B, phosphoinositide 3 kinase/Akt, insulin-like growth factor receptor 1, Wnt, cell cycle associated proteins, as well as androgen and estrogen receptor signaling). These data, in combination with bioinformatics analyses, will be very important for identifying signaling pathways and molecular targets that may provide early diagnostic markers and/or critical targets for the development of new drugs or drug combinations that block tumor formation and progression

Advance care planning in amyotrophic lateral sclerosis (ALS): study protocol for a qualitative longitudinal study with persons with ALS and their family carers

INTRODUCTION: Amyotrophic lateral sclerosis (ALS) is an incurable motor neuron degenerative disease that has rapid progression and is associated with cognitive impairment. For people with ALS (pALS) and their family carers, advance care planning (ACP) is beneficial, as it can lead to feelings of control/relief and refusal of unwanted treatments. However, evidence concerning the experiences and preferences regarding ACP of pALS and their family carers, especially when their symptoms progress, is scarce. This article describes the protocol for a qualitative longitudinal study that aims to explore: (1) the experiences with ACP and the preferences for future care and treatment of pALS and their family carers and (2) how these experiences and preferences change over time. METHODS AND ANALYSIS: A qualitative, longitudinal, multiperspective design. A total of eight to nine dyads (pALS and their family carers) will be recruited, and semistructured interviews administered every 3 months over a 9-month period. Qualitative longitudinal analysis involves content analysis via in-depth reading, followed by a two-step timeline method to describe changes in experiences and preferences within and across participants. ETHICS AND DISSEMINATION: This protocol has been approved by the central ethical committee of the University Hospital of Brussels, and local ethical committees of the other participating hospitals (B.U.N. B1432020000128). The results will be disseminated via the research group's (endoflifecare.be) website, social media and newsletter and via presentations at national and international scientific conferences. © Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ

Advance care planning for adolescents with cancer and their parents : study protocol of the BOOST pACP multi-centre randomised controlled trial and process evaluation

Background: Research has highlighted the need for evidence-based interventions to improve paediatric advance care planning (pACP) in adolescents with cancer. Although adolescents express the desire and ability to share their values, beliefs and preferences for treatment, there is a lack of structured multicomponent interventions to improve parent-adolescent communication on different ACP themes including those not limited to end-of-life care. The aim of this study is to evaluate the effectiveness and implementation, context and mechanisms of impact of a novel ACP program in paediatric oncology. Methods: We will conduct a multi-centre parallel-group randomised controlled superiority trial with embedded mixed-methods process evaluation in Flanders, Belgium. Adolescents aged 10-18 who have cancer, and their parent(s) will be recruited via all four university hospitals in Flanders, Belgium, and support groups. Families will be randomised to receive care as usual or the multicomponent BOOST pACP program, consisting of three conversation sessions between an external facilitator and the adolescent and parent(s). The primary endpoint is improved parent-adolescent communication from the perspective of the adolescent. Secondary endpoints are adolescents' and parents' attitudes, self-efficacy, intention and behaviour regarding talking about ACP themes with each other, parents' perspective of shared decision making in the last clinical encounter, and the paediatric oncologist's intention and behaviour regarding talking about ACP themes with the family. Measurements will be performed at baseline, at 3 months and at 7 months using structured self-reported questionnaires. We will perform a process evaluation in the intervention group, with measurement throughout and post-intervention, using structured diaries filled out by the facilitators, interviews with facilitators, interviews with involved paediatric oncology teams, and audio-recordings of the BOOST pACP conversations. Discussion: The BOOST pACP program has been developed to stimulate conversations on ACP themes between parent(s) and the adolescents, simultaneously lowering the threshold to discuss similar themes with healthcare professionals, initiating a process of normalization and integration of ACP in standard care. This combined outcome and process evaluation aims to contribute to building the necessary evidence to improve ACP in paediatric oncology

Comparing Advance Care Planning in Young-Onset Dementia in the USA vs Belgium: Challenges Partly Related to Societal Context

Contains fulltext : 221013.pdf (Publisher’s version ) (Closed access)OBJECTIVES: Advance care planning in young-onset dementia largely remains a blind spot within current literature. This study aimed to explore the engagement in and the conceptualization of advance care planning from the perspective of family caregivers of persons with young-onset dementia and to identify potential similarities and differences in this area between American and Belgian persons with young-onset dementia and their family caregivers. DESIGN: An exploratory qualitative study. SETTING AND PARTICIPANTS: We purposively sampled adult family caregivers of persons with young-onset dementia; our respondents were 13 American and 15 Belgian caregivers with varying familial relationships to the patient. METHODS: We conducted 28 semi-structured interviews, using the same interview guide for American and Belgian respondents. Verbatim transcripts were analysed through the method of constant comparative analysis. RESULTS: Important similarities between American and Belgian respondents were restricted knowledge of advance care planning, limited communication about advance directives, and their recommendation for professionals to timely initiate advance care planning. Major differences were attention paid to those end-of-life decisions depicted in the legislature of their respective countries, American caregivers placed higher emphasis on financial planning than their Belgian peers, and, in the case of consulting professionals for advance directives, American caregivers turned to lawyers, whereas Belgian caregivers relied on physicians. CONCLUSIONS AND IMPLICATIONS: Specific nuances and challenges in terms of advance care planning in young-onset dementia arise from a particular societal and legal context on the one hand, and from patients' and caregivers' younger age on the other. Professionals' awareness of and responsiveness to these specificities could facilitate the advance care planning process. Based on our interpretation of results, several recommendations for practice and policy are made

Advance care planning - Family carer psychological distress and involvement in decision making:The ACTION trial

Objectives: Facilitated advance care planning (ACP) helps family carers' to be aware of patient preferences. It can improve family carers' involvement in decision making and their overall experiences at the end of life, as well as, reduce psychological stress. We investigated the effects of the ACTION Respecting Choices (RC) ACP intervention on the family carers' involvement in decision making in the last 3 months of the patients' life and on the family carers' psychological distress after 3 months of bereavement. Methods: Over six European countries, a sample of 162 bereaved family carers returned a bereavement questionnaire. Involvement in decision making was measured with a single item of the Views of Informal Carers-Evaluation of Services Short Form questionnaire. Psychological distress was measured with the Impact of Event Scale (IES). Results: No significant effect was found on family carers involvement in decision making in the last 3 months of the patients' life (95% CI 0.449 to 4.097). However, the probability of involvement in decision making was slightly higher in the intervention arm of the study (89.6% vs 86.7%; OR=1.357). Overall, no statistical difference was found between intervention and control group regarding the IES (M=34.1 (1.7) vs 31.8 (1.5); (95% CI -2.2 to 6.8)). Conclusion: The ACTION RC ACP intervention showed no significant effect on family carers' involvement in decision making or on subsequent psychological distress. More research is needed about (1) how family carers can be actively involved in ACP-conversations and (2) how to prepare family carers on their role in decision making. Trial registration number: International Standard Randomised Controlled Trial Number ISRCTN17231