Publications by authors named "Bruno Verstraeten"

Acute systemic inflammation critically alters the function of the immune system, often promoting myelopoiesis at the expense of lymphopoiesis. In the thymus, systemic inflammation results in acute thymic atrophy and, consequently, impaired T-lymphopoiesis. The mechanism by which systemic inflammation impacts the thymus beyond suppressing T-cell development is still unclear.

View Article and Find Full Text PDF

The T cell population size is stringently controlled before, during, and after immune responses, as improper cell death regulation can result in autoimmunity and immunodeficiency. RIPK1 is an important regulator of peripheral T cell survival and homeostasis. However, whether different peripheral T cell subsets show a differential requirement for RIPK1 and which programmed cell death pathway they engage in vivo remains unclear.

View Article and Find Full Text PDF
Article Synopsis
  • Acute thymic atrophy occurs after type 1 inflammatory conditions like viral infections and sepsis, leading to cell death and affecting T cell development.
  • Single-cell RNA sequencing identifies neonatal thymic-resident ILC1s as a distinct and immature group compared to those in other lymphoid organs, and exposure to certain cytokines (IL-12 and IL-18) promotes their rapid growth and migration.
  • Type 1 inflammation not only causes thymic atrophy but also enhances the movement of these ILC1s to other areas like the liver and peritoneal cavity, indicating a potential role in immune responses.
View Article and Find Full Text PDF
Article Synopsis
  • Extracellular vesicles (EVs) play a crucial role in cell-to-cell communication, especially during regulated cell death (RCD), although their composition and function during different types of RCD were poorly understood until now.
  • The study compared steady-state EVs (ssEVs) to EVs associated with cell death (cdEVs) produced from TNF-induced necroptosis, anti-Fas-induced apoptosis, and ML162-induced ferroptosis, revealing that cdEVs contain heightened protein levels and distinct biochemical properties.
  • Notably, while all cdEVs had similarities in protein cargo, specific types like necEVs and apoEVs were linked to proteins related to ribosome biogenesis, contrasting with
View Article and Find Full Text PDF

Ferroptosis is an iron-dependent cell death-driven by excessive peroxidation of polyunsaturated fatty acids (PUFAs) of membranes. A growing body of evidence suggests the induction of ferroptosis as a cutting-edge strategy in cancer treatment research. Despite the essential role of mitochondria in cellular metabolism, bioenergetics, and cell death, their function in ferroptosis is still poorly understood.

View Article and Find Full Text PDF

Biochar has been reported to play a positive role in disease suppression against airborne pathogens in plants. The mechanisms behind this positive trait are not well-understood. In this study, we hypothesized that the attraction of plant growth-promoting rhizobacteria (PGPR) or fungi (PGPF) underlies the mechanism of biochar in plant protection.

View Article and Find Full Text PDF

Background: Root knot nematodes (RKN) are plant parasitic nematodes causing major yield losses of widely consumed food crops such as rice (Oryza sativa). Because non-coding RNAs, including small interfering RNAs (siRNA), microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), are key regulators of various plant processes, elucidating their regulation during this interaction may lead to new strategies to improve crop protection. In this study, we aimed to identify and characterize rice siRNAs, miRNAs and lncRNAs responsive to early infection with RKN Meloidogyne graminicola (Mg), based on sequencing of small RNA, degradome and total RNA libraries from rice gall tissues compared with uninfected root tissues.

View Article and Find Full Text PDF

Epigenetic processes play a crucial role in the regulation of plant stress responses, but their role in plant-pathogen interactions remains poorly understood. Although histone-modifying enzymes have been observed to be deregulated in galls induced by root-knot nematodes (RKN, Meloidogyne graminicola) in rice, their influence on plant defence and their genome-wide impact has not been comprehensively investigated. First, the role of histone modifications in plant-nematode interactions was confirmed by pharmacological inhibition of histone-modifying enzymes, which all significantly affected rice susceptibility to RKN.

View Article and Find Full Text PDF

Background: Sugar beet (Beta vulgaris subsp. vulgaris) is an economically important crop that provides nearly one third of the global sugar production. The beet cyst nematode (BCN), Heterodera schachtii, causes major yield losses in sugar beet and other crops worldwide.

View Article and Find Full Text PDF

Ascorbic acid (AA) is the major antioxidant buffer produced in the shoot tissue of plants. Previous studies on root-knot nematode (RKN; Meloidogyne graminicola)-infected rice (Oryza sativa) plants showed differential expression of AA-recycling genes, although their functional role was unknown. Our results confirmed increased dehydroascorbate (DHA) levels in nematode-induced root galls, while AA mutants were significantly more susceptible to nematode infection.

View Article and Find Full Text PDF

A role for DNA hypomethylation has recently been suggested in the interaction between bacteria and plants; it is unclear whether this phenomenon reflects a conserved response. Treatment of plants of monocot rice and dicot tomato with nematode-associated molecular patterns from different nematode species or bacterial pathogen-associated molecular pattern flg22 revealed global DNA hypomethylation. A similar hypomethylation response was observed during early gall induction by Meloidogyne graminicola in rice.

View Article and Find Full Text PDF

MicroRNAs miR390-5p, miR7694-3p miR1868 and miR1849 were found to be suitable miRNA reference genes for rice, under either infection with the root-knot nematode Meloidogyne graminicola or treatment with BABA. RT-qPCR is a widely used method to investigate the expression levels of genes under certain conditions. A key step, however, to have reliable results is the normalization of expression.

View Article and Find Full Text PDF

Rice () is one of the main staple crops worldwide but suffers from important yield losses due to different abiotic and biotic stresses. Analysis of quantitative trait loci (QTL) is a classical genetic method which enables the creation of more resistant cultivars but does not yield information on the genes directly involved or responsible for the desired traits. Lectins are known as proteins with diverse functions in plants.

View Article and Find Full Text PDF

For more than three decades, served as a model for plant biology research. At present only a few protein families have been studied in detail in . This study focused on all sequences with lectin motifs in the genome of .

View Article and Find Full Text PDF