| Title |
Anandamide oxidative metabolism-induced endoplasmic reticulum stress and apoptosis
|
|---|---|
| Published in |
Apoptosis, February 2017
|
| DOI | 10.1007/s10495-017-1356-4 |
| Pubmed ID | |
| Authors |
M. Almada, B. M. Fonseca, C. Amaral, M. Diniz-da-Costa, G. Correia-da-Silva, N. Teixeira |
| Abstract |
The Endocannabinoid System (ECS) has been recognized as a crucial player in human reproduction. Changes in the levels of anandamide (AEA), the main endocannabinoid (eCB), negatively affect reproductive events, such as implantation, decidualization and placentation. Cyclooxygenase-2 (COX-2) is a major enzyme expressed in the endometrium and its involvement in female reproductive system has evolved over the last few years. Currently, COX-2 oxidative metabolism is emerging as a key mediator of AEA-induced actions. In this study, we aimed to disclose the mechanisms underlying the effects of AEA in human endometrial stromal cell fate, using a human-derived endometrial cell line (St-T1b). We found that AEA has an anti-proliferative activity through a direct effect on cell cycle progression by inducing G2/M arrest. Moreover, high levels of AEA increased COX-2 activity, triggering apoptotic cell death, with loss of mitochondrial membrane potential, induction of caspase -9 and -3/-7 activities, and cleavage of poly (ADP-ribose) polymerase (PARP). In addition, the involvement of intracellular reactive oxygen species (ROS) and endoplasmic reticulum (ER) stress was verified. These effects were prevented by pre-incubation with a selective COX-2 inhibitor. Therefore, we hypothesize that, in response to altered levels of this eCB, COX-2 oxidative metabolism of AEA may deregulate endometrial cell turnover and, consequently, interfere with cellular events crucial for implantation and decidualization, with a negative impact on human fertility. |
Mendeley readers
The data shown below were compiled from readership statistics for 23 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 23 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 4 | 17% |
| Researcher | 3 | 13% |
| Student > Master | 3 | 13% |
| Student > Bachelor | 2 | 9% |
| Professor | 2 | 9% |
| Other | 3 | 13% |
| Unknown | 6 | 26% |
| Readers by discipline | Count | As % |
|---|---|---|
| Pharmacology, Toxicology and Pharmaceutical Science | 3 | 13% |
| Agricultural and Biological Sciences | 3 | 13% |
| Biochemistry, Genetics and Molecular Biology | 3 | 13% |
| Medicine and Dentistry | 3 | 13% |
| Neuroscience | 2 | 9% |
| Other | 1 | 4% |
| Unknown | 8 | 35% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 22 February 2017.
All research outputs
#20,406,219
of 22,955,959 outputs
Outputs from Apoptosis
#634
of 809 outputs
Outputs of similar age
#270,450
of 310,302 outputs
Outputs of similar age from Apoptosis
#7
of 10 outputs
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So far Altmetric has tracked 809 research outputs from this source. They receive a mean Attention Score of 3.6. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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