Mountains and Food: Current Trends and Challenges in Europe’s Mountain Regions

1. The Context of this Special Issue This special issue originates in the (re)emergence of the food question in urban contexts in North America and Europe over the first two decades of the twenty-first century (Pothukuchi and Kaufman, 2000; Steel, 2009; Morgan, 2009; Perrin and Soulard, 2014; Brand, 2015; among others). Previously neglected as a planning issue, food has been put firmly back on the territorial agenda by urban movements and the issues raised by urbanisation (including sustainab..

Montagne et Alimentation : dynamiques et enjeux actuels dans les montagnes européennes

1. Le positionnement de ce numéro spécial Ce numéro spécial trouve son origine dans la (re)naissance de la question alimentaire dans les contextes urbains en Amérique du Nord et en Europe au cours des deux premières décennies du xxie siècle (Pothukuchi & Kaufman, 2000 ; Steel, 2009 ; Morgan, 2009 ; Perrin & Soulard, 2014 ; Brand, 2015 ; etc.). Oubliée des territoires en tant que problématique d’aménagement, l’alimentation est revenue à l’agenda de ceux-ci à partir de mouvements urbains et des..

Involvement of Pinus taeda MYB1 and MYB8 in phenylpropanoid metabolism and secondary cell wall biogenesis: a comparative in planta analysis

The involvement of two R2R3-MYB genes from Pinus taeda L., PtMYB1 and PtMYB8, in phenylpropanoid metabolism and secondary cell wall biogenesis was investigated in planta. These pine MYBs were constitutively overexpressed (OE) in Picea glauca (Moench) Voss, used as a heterologous conifer expression system. Morphological, histological, chemical (lignin and soluble phenols), and transcriptional analyses, i.e. microarray and reverse transcription quantitative PCR (RT-qPCR) were used for extensive phenotyping of MYB-overexpressing spruce plantlets. Upon germination of somatic embryos, root growth was reduced in both transgenics. Enhanced lignin deposition was also a common feature but ectopic secondary cell wall deposition was more strongly associated with PtMYB8-OE. Microarray and RT-qPCR data showed that overexpression of each MYB led to an overlapping up-regulation of many genes encoding phenylpropanoid enzymes involved in lignin monomer synthesis, while misregulation of several cell wall-related genes and other MYB transcription factors was specifically associated with PtMYB8-OE. Together, the results suggest that MYB1 and MYB8 may be part of a conserved transcriptional network involved in secondary cell wall deposition in conifers

Subgroup 4 R2R3-MYBs in conifer trees: gene family expansion and contribution to the isoprenoid- and flavonoid-oriented responses

Transcription factors play a fundamental role in plants by orchestrating temporal and spatial gene expression in response to environmental stimuli. Several R2R3-MYB genes of the Arabidopsis subgroup 4 (Sg4) share a C-terminal EAR motif signature recently linked to stress response in angiosperm plants. It is reported here that nearly all Sg4 MYB genes in the conifer trees Picea glauca (white spruce) and Pinus taeda (loblolly pine) form a monophyletic clade (Sg4C) that expanded following the split of gymnosperm and angiosperm lineages. Deeper sequencing in P. glauca identified 10 distinct Sg4C sequences, indicating over-represention of Sg4 sequences compared with angiosperms such as Arabidopsis, Oryza, Vitis, and Populus. The Sg4C MYBs share the EAR motif core. Many of them had stress-responsive transcript profiles after wounding, jasmonic acid (JA) treatment, or exposure to cold in P. glauca and P. taeda, with MYB14 transcripts accumulating most strongly and rapidly. Functional characterization was initiated by expressing the P. taeda MYB14 (PtMYB14) gene in transgenic P. glauca plantlets with a tissue-preferential promoter (cinnamyl alcohol dehydrogenase) and a ubiquitous gene promoter (ubiquitin). Histological, metabolite, and transcript (microarray and targeted quantitiative real-time PCR) analyses of PtMYB14 transgenics, coupled with mechanical wounding and JA application experiments on wild-type plantlets, allowed identification of PtMYB14 as a putative regulator of an isoprenoid-oriented response that leads to the accumulation of sesquiterpene in conifers. Data further suggested that PtMYB14 may contribute to a broad defence response implicating flavonoids. This study also addresses the potential involvement of closely related Sg4C sequences in stress responses and plant evolution

Appel à articles RGA Numéro spécial "Montagne et Alimentation" : dynamiques et enjeux actuels dans les montagnes européennes

Appel à articles, numéro spécial "Montagne et Alimentation"This call for papers arises out of the (re-)emergence of the food issue in North American and European urban contexts during the first two decades of the 21st century. Until recently, the strong initial urban focus of this emerging field of research and action has side-lined rural and mountain areas, at least in the Global North.But, the issues of food transition are also relevant for mountain territories: How are new ways of producing, processing, distributing, sourcing and eating invented? How do the broad challenges of food transition take shape in mountain areas?This call for papers aims to show the current dynamics of food systems in mountain regions and wishes to investigate these dynamics in the light of several specific topics that we would like this special issue to cover.Cet appel à article trouve son origine dans la (re)naissance de la question alimentaire dans les contextes urbains en Amérique du Nord et en Europe au cours des deux premières décennies du 21ème siècle. Jusque récemment, les territoires ruraux et de montagne des Nords ont été en retrait des analyses cherchant à faire le lien entre l’évolution des systèmes alimentaires et des systèmes territoriaux, la focale ayant été initialement fortement mise sur les territoires urbains. Or, les enjeux de transition alimentaire dans les territoires se posent aussi pour les territoires de montagne : comment s’y inventent de nouvelles façons de produire, de transformer, de distribuer, de s’approvisionner et de manger ? Comment les grands défis de la transition alimentaire prennent-ils forme dans les territoires de montagne ?Cet appel à article souhaite donner à voir les dynamiques en cours dans les territoires de montagne au regard de la question alimentaire et interroger ces dynamiques à l’aune de quelques enjeux que l’on voudrait voir discuter dans ce numéro

Mechanisms of BCG immunotherapy and its outlook for bladder cancer

International audienceBCG immunotherapy is the gold-standard treatment for non-muscle-invasive bladder cancer at high risk of recurrence or progression. Preclinical and clinical studies have revealed that a robust inflammatory response to BCG involves several steps: attachment of BCG; internalization of BCG into resident immune cells, normal cells, and tumour urothelial cells; BCG-mediated induction of innate immunity, which is orchestrated by a cellular and cytokine milieu; and BCG-mediated initiation of tumour-specific immunity. As an added layer of complexity, variation between clinical BCG strains might influence development of tumour immunity. However, more than 40 years after the first use of BCG for bladder cancer, many questions regarding its mechanism of action remain unanswered. Clearly, a better understanding of the mechanisms underlying BCG-mediated tumour immunity could lead to improved efficacy, increased tolerance of treatment, and identification of novel immune-based therapies. Indeed, enthusiasm for bladder cancer immunotherapy, and the possibility of combining BCG with other therapies, is increasing owing to the availability of targeted immunotherapies, including checkpoint inhibitors. Understanding of the mechanism of action of BCG immunotherapy has advanced greatly, but many questions remain, and further basic and clinical research efforts are needed to develop new treatment strategies for patients with bladder cancer

Back to the future: vaginal hysterectomy and Campbell uterosacral ligaments suspension for urogenital prolapse

International audienceIntroduction and hypothesis: To evaluate vaginal hysterectomy (VH) associated with vaginal native tissue repair (VNTR) using Campbell uterosacral ligament suspension (C-USLS) for the treatment of predominant uterine prolapse associated with cystocele. Methods: We conducted a retrospective monocentric study including patients who underwent VH and C-USLS, without concomitant mesh, for primary urogenital prolapse between January 2011 and June 2018. We evaluated the anterior and apical prolapse recurrence rate, using a composite criterion (symptomatic, asymptomatic recurrence, POP-Q stage ≥ 2). We analyzed 2-year recurrence-free survival using the Kaplan-Meier method. Univariate and multivariate analyses were performed to identify variables associated with recurrence. Secondary outcomes included postoperative complications, lower urinary tract symptoms (LUTS) and sexual satisfaction. Results: Ninety-four patients were included. Eighty-three (88.3%) and 65 (69.1%) patients had stage ≥ 3 uterine prolapse and cystocele, respectively. Mean follow-up was 36 months. Prolapse recurrence rate was 21.3% including 3.2% of cystocele. Two-year recurrence-free survival was 80%. Age, body mass index, POP-Q stage and associated surgical procedure were not significantly associated with recurrence. Early complications were reported for 20 patients (21.2%), mostly grade ≤ 2 (95%). De novo LUTS were reported in 11 cases (11.7%). Preoperative stress urinary incontinence and urgency were cured for 12 (80%) and 29 (80.6%) patients, respectively. Sexual satisfaction rate for patients with preoperative sexual activity was 95.8%. Conclusion: C-USLS following VH as primary treatment for predominant uterine prolapse with associated cystocele is a safe procedure with satisfying mid-term functional results. This VNTR could be an alternative in light of the worldwide market withdrawal of actual vaginal mesh

Recommandations du comité de cancérologie de l'Association Française d'Urologie - actualisation 2022-2024: prise en charge du cancer du rein

International audienceAim: To update the recommendations for the management of kidney cancers. Methods: A systematic review of the literature was conducted from 2015 to 2022. The most relevant articles on the diagnosis, classification, surgical treatment, medical treatment and follow-up of kidney cancer were selected and incorporated into the recommendations. Therefore, the recommendations were updated while specifying the level of evidence (high or low). Results: The gold standard for the diagnosis and evaluation of kidney cancer is contrast-enhanced chest and abdominal CT. MRI and contrast-enhanced ultrasound are indicated in special cases. Percutaneous biopsy is recommended in situations where the results will influence the therapeutic decision. Renal tumours should be classified according to the pTNM 2017 classification, the WHO 2022 classification and the ISUP nucleolar grade. Metastatic kidney cancer should be classified according to the IMDC criteria. Partial nephrectomy is the gold standard treatment for T1a tumours and can be performed by an open approach, by laparoscopy or by robot-guidance. Active surveillance of tumours less than 2 cm in size can be considered regardless of the patient's age. Ablative therapies and active surveillance are options in elderly patients with comorbidity. T1b tumours should be treated by partial or radical nephrectomy depending on the complexity of the tumour. Radical nephrectomy is the first-line treatment for locally advanced cancers. Adjuvant treatment with pembrolizumab should be considered in patients at intermediate and high risk for recurrence after nephrectomy. In metastatic patients: Immediate cytoreductive nephrectomy may be offered to oligometastatic patients in combination with local treatment of metastases if this can be complete and delayed cytoreductive nephrectomy can be proposed for patients with a complete response or a significant partial response. Medical treatment should be proposed as first-line therapy for patients with a poor or intermediate prognosis. Surgical or local treatment of metastases can be proposed in case of single or oligo-metastases. The recommended first-line drugs for metastatic patients with clear cell renal carcinoma are the combinations axitinib/pembrolizumab, nivolumab/ipililumab, nivolumab/cabozantinib and lenvatinib/pembrolizumab. Cabozantinib is the recommended first-line treatment for patients with metastatic papillary carcinoma. Cystic tumours should be classified according to the Bosniak classification. Surgical removal should be proposed as a priority for Bosniak III and IV lesions. It is recommended that patient monitoring be adapted to the aggressiveness of the tumour. Conclusion: These updated recommendations are a reference that will allow French and French-speaking practitioners to improve kidney cancer management