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, a hemoflagellate parasite, is the etiological agent of Chagas disease that affects about 6-7 million people worldwide, mostly in Latin America. The parasite life cycle is complex and alternates between an invertebrate host-Triatominae vector-and a mammalian host. The parasite adaptation to the several microenvironments through which it transits is critical to success in establishing infection. Moreover, environmental cues also play an important role on the parasite development, and it can modulate the infection. In the present study, we discussed how the temperature oscillations and the nutritional state of the invertebrate host can affect the parasite development, multiplication, and the differentiation process of epimastigote forms into metacyclic trypomastigotes, called metacyclogenesis. The impact of oxidative imbalance and osmotic stresses on the parasite-vector relationship are also discussed.
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http://dx.doi.org/10.3389/fcimb.2020.00027 | DOI Listing |
Methods Cell Biol
September 2025
Department of Cell Biology and Histology, University of the Basque Country UPV/EHU, Leioa, Spain. Electronic address:
Human Dental Pulp Stem Cells (hDPSCs) represent a remarkable cell source for tissue engineering and regenerative medicine, offering significant potential for use in personalized medicine and autologous therapies. Decellularized extracellular matrix (ECM)-derived biological scaffolds show excellent properties for supporting cell delivery and growth in both in vitro and in vivo applications. These scaffolds provide essential biochemical cues that regulate cellular functions and offer a more accurate representation of the in vivo environment.
View Article and Find Full Text PDFAnimal
July 2025
INRAE, CNRS, Université de Tours, PRC, 37 380 Nouzilly, France. Electronic address:
The perception of olfactory stimuli can influence animal emotions and behaviours, which are critical for survival and adaptation. This study explored the properties of three olfactory stimuli (orange essential oil, wolf faeces, and cadaverine) to induce emotion in sheep, in a non-stressful environment enriched with social and food resources. Contrary to expectations, wolf faeces, while repellent, did not trigger overt stress behaviours such as increased vocalisations or agitation.
View Article and Find Full Text PDFChannels (Austin)
December 2025
Biorheology Research Laboratory, Faculty of Health, Griffith University, Gold Coast, Australia.
The hallmarks of mechanosensitive ion channels have been observed for half a century in various cell lines, although their mechanisms and molecular identities remained unknown until recently. Identification of the bona fide mammalian mechanosensory Piezo channels resulted in an explosion of research exploring the translation of mechanical cues into biochemical signals and dynamic cell morphology responses. One of the Piezo isoforms - Piezo1 - is integral in the erythrocyte (red blood cell; RBC) membrane.
View Article and Find Full Text PDFJ Acoust Soc Am
September 2025
ENTPE, Ecole Centrale de Lyon, CNRS, LTDS, UMR5513, 69518 Vaulx-en-Velin, France.
This study investigated the potential role of temporal, spectral, and binaural room-induced cues for the perception of virtual auditory distance. Listeners judged the perceived distance of a frontal source simulated between 0.5 and 10 m in a room via headphones, with eyes closed in a soundproof booth.
View Article and Find Full Text PDFFront Pharmacol
August 2025
General Surgery Department Three, Gansu Province Central Hospital, Lanzhou, China.
Fast and early detection of low-dose chemical toxicity is a critical unmet need in toxicology and human health, as conventional 2D culture models often fail to capture subtle cellular responses induced by sub-toxic exposures. Here, we present a bioengineered three-dimensional (3D) electrospun nanofibrous scaffold composed of polycaprolactone that enhances chromatin accessibility and primes fibroblasts for improved sensitivity to low-dose chemical stimuli in a short period. The scaffold mimics the extracellular matrix, providing topographical cues that reduce cytoskeletal tension and promote nuclear deformation, thereby increasing chromatin openness.
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