PAI-1, progress in understanding the clinical problem and its aetiology
Takayuki Iwaki1, Tetsumei Urano, Kazuo Umemura
1Department of Pharmacology, Hamamatsu University School of Medicine, Hamamatsu, Japan. tiwaki@hama-med.ac.jp
British Journal of Haematology
|February 25, 2012
Summary
Plasminogen activator inhibitor-1 (PAI-1) regulates blood clot breakdown. Recent studies using Serpine1-deficient mice reveal PAI-1
Area of Science:
- Biochemistry
- Molecular Biology
- Physiology
Background:
- Plasminogen activator inhibitor-1 (PAI-1), also known as SERPINE1, is a key serine protease inhibitor.
- PAI-1 primarily regulates urokinase-type plasminogen activator (uPA) and tissue-type plasminogen activator (tPA) activity.
- Beyond its role in inhibiting fibrinolysis, PAI-1 exhibits diverse functions in hemostasis and other physiological processes.
Purpose of the Study:
- To review recent findings on PAI-1 functions.
- To discuss the role of PAI-1 in various clinical conditions.
- To highlight insights gained from Serpine1-deficient mouse models.
Main Methods:
- Literature review of recent studies on PAI-1.
- Analysis of in vivo and in vitro experimental data.
- Examination of findings from Serpine1-deficient mouse models.
Main Results:
- PAI-1 is a crucial regulator of the fibrinolytic system.
- Studies have elucidated PAI-1's pleiotropic functions beyond hemostasis.
- Serpine1-deficient mice have provided significant insights into PAI-1's roles.
Conclusions:
- PAI-1 has multifaceted roles in physiology and pathophysiology.
- Further research continues to uncover the clinical significance of PAI-1.
- Understanding PAI-1 is essential for comprehending various biological processes.
Related Concept Videos
01:24Parkinson Disease ll: Pathophysiology
Parkinson disease (PD) is a progressive neurodegenerative disorder primarily affecting movement, with additional non-motor features. Its pathophysiology involves complex interactions among genetic susceptibility, environmental exposures, and cellular dysfunction, including dopaminergic neuron loss, protein aggregation, and mitochondrial impairment.Selective NeurodegenerationA key feature is the degeneration of dopaminergic neurons in the substantia nigra pars compacta, leading to reduced...
01:25Introduction to Language of Pathophysiology l
Pathophysiology investigates how biological mechanisms—typically starting at the cellular level—disrupt normal bodily functions. It bridges anatomy and physiology to explain the progression of disease. With this foundation, it is important to understand the following key terms used to describe disease processes: Diagnosis:The process of identifying a disease using clinical evaluation, including signs (objective evidence like rashes), symptoms (subjective experiences like pain), laboratory test...
01:30Peripheral Artery Disease I: Introduction
Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
01:30Pulmonary Hypertension: Classification and Pathogenesis
Pulmonary hypertension (PH) is a severe health condition in which the mean pulmonary arterial pressure increases to 25 mmHg or more, even when the body is at rest. This high pressure in the blood vessels that transport blood from the heart to the lungs can cause various symptoms, including shortness of breath, can lead to right heart failure, and significantly affect the overall quality of life.
There are various classifications for PH, each relating to different underlying causes and also...
There are various classifications for PH, each relating to different underlying causes and also...
01:29Pharmacogenomics: Identification of New Drug Targets
Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
01:27Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders
Schizophrenia is a neurodevelopmental disorder whose origins are rooted in complex genetic components. Despite our burgeoning understanding, the pathophysiology of this disorder remains incompletely deciphered.
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within the...
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within the...