[The mammalian TOR pathway is present in Trypanosoma cruzi. In silico reconstruction and possible functions].

Medicina (B Aires)

Laboratorio de Biología Molecular de Trypanosoma cruzi, Instituto de Investigaciones Médicas Alfredo Lanari, Buenos Aires.

Published: May 2013

The mammalian TOR pathway ("Target Of Rapamycin") is a regulatory protein network involved in a wide range of processes including cell growth and differentiation, providing a functional switch between anabolic and catabolic cell metabolism. Trypanosoma cruzi, the etiologic agent of Chagas disease, has a complex life cycle with different morphological stages in various hosts. This life cycle implies that parasites have to deal with fluctuations in the extracellular medium that should be detected and counteracted adapting their metabolism. A candidate to be the mediator between the receptors / sensors of the environment and cellular adaptive response is the TOR pathway. In this paper we integrate the bibliographic data of the TOR pathway in trypanosomatids by in silico analysis (computer simulation of biological structures and processes) of the parasite's genome. Possible effectors and processes regulated by this metabolic pathway are also proposed. Given that the information on the mechanisms of signal transduction in trypanosomatids is scarce, we consider the model presented in this work may be a reference for future experimental work.

Download full-text PDF

Source

Publication Analysis

Top Keywords

tor pathway
16
mammalian tor
8
trypanosoma cruzi
8
life cycle
8
pathway
5
[the mammalian
4
tor
4
pathway trypanosoma
4
cruzi silico
4
silico reconstruction
4

Similar Publications

Redox regulation of focal adhesions.

Redox Biol

January 2025

Redox Biology Group, Danish Cancer Institute, 2100, Copenhagen, Denmark. Electronic address:

Focal adhesions (FAs), multi-protein complexes that link the extracellular matrix to the intracellular cytoskeleton, are key mediators of cell adhesion, migration, and proliferation. These dynamic structures act as mechanical sensors, transmitting stimuli from the extracellular to intracellular environment activating in this way signaling pathways and enabling cells to adapt to environmental changes. As such, FAs are critical for tissue organization and serve as hubs governing cell spatial arrangement within the organism.

View Article and Find Full Text PDF

Background: Myocardial ischemia-reperfusion injury (MIRI) is an important complication in the treatment of heart failure, and its treatment has not made satisfactory progress. Nitroxyl (HNO) showed protective effects on the heart failure, however, the effect and underlying mechanism of HNO on MIRI remain largely unclear.

Methods: MIRI model in this study was established to induce H9C2 cell injury through hypoxia/reoxygenation (H/R) in vitro.

View Article and Find Full Text PDF

DRAM1 enhances the proliferation and metastasis of gastric cancer through the PI3K/AKT/mTOR signaling pathway and energy metabolism.

Sci Rep

January 2025

Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University of Chinese Medicine, Nanjing, 210000, Jiangsu, China.

Gastric cancer (GC) is a prevalent malignant tumor of the digestive system that is often diagnosed at advanced stages owing to inconspicuous early symptoms and a lack of specific examination methods. Effective treatment of advanced stages remains challenging, emphasizing the need for new therapeutic targets. Metabolic reprogramming, a hallmark of tumors, plays a pivotal role in tumor progression, immune evasion, and immune surveillance.

View Article and Find Full Text PDF

Osteoarthritis (OA) is a degenerative joint disease with a complex aetiology, which includes inflammation, cellular growth dysregulation and extracellular matrix (ECM) degradation. This study investigated the therapeutic potential of a small-molecule compound, 2-amino-4-(3,4,5-trimethoxyphenyl)-4H-benzo[h]chromene-3-carbonitrile (CN7:1h) in modulating these critical biochemical pathways in OA. Cellular models and rat models of OA were used to explore the impact of CN7:1h on the nuclear factor kappa light chain enhancer of activated B cells (NF-κB) and mechanistic target of rapamycin (mTOR) signalling pathways.

View Article and Find Full Text PDF

Stereocaulon alpinum has been found to have potential pharmaceutical properties due to the presence of secondary metabolites such as usnic acid, atranorin, and lobaric acid (LA) which have anticancer activity. On the other hand, the effect of LA on the stemness potential of colorectal cancer (CRC) cells remains unexplored, and has not yet been thoroughly investigated. In this study, we examined the inhibitory activity of LA from Stereocaulon alpinum against the stemness potential of CRC cells and investigated the possible underlying mechanisms.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!