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Topic Review
TRPV4 Ion Channel
The transient receptor potential vanilloid 4 channel (TRPV4) belongs to the mammalian TRP superfamily of cation channels. TRPV4 is ubiquitously expressed, activated by a disparate array of stimuli, interacts with a multitude of proteins, and is modulated by a range of post-translational modifications, the majority of which we are only just beginning to understand. Not surprisingly, a great number of physiological roles have emerged for TRPV4, as have various disease states that are attributable to the absence, or abnormal functioning, of this ion channel. This review will highlight structural features of TRPV4, endogenous and exogenous activators of the channel, and discuss the reported roles of TRPV4 in health and disease.
  • 500
  • 01 Feb 2021
Topic Review
TRPV4 and Calcium Oscillations in Tissue Repair
The transient receptor potential vanilloid 4 (TRPV4) specifically functions as a mechanosensitive ion channel and is responsible for conveying changes in physical stimuli such as mechanical stress, osmotic pressure, and temperature. TRPV4 enables the entry of cation ions, particularly calcium ions, into the cell. Activation of TRPV4 channels initiates calcium oscillations, which trigger intracellular signaling pathways involved in a plethora of cellular processes, including tissue repair. Widely expressed throughout the body, TRPV4 can be activated by a wide array of physicochemical stimuli, thus contributing to sensory and physiological functions in multiple organs.
  • 99
  • 30 Jan 2024
Topic Review
TRPC1 in Modulating Cancer Progression
Calcium ions (Ca2+) play an important role as second messengers in regulating a plethora of physiological and pathological processes, including the progression of cancer. Several selective and non-selective Ca2+-permeable ion channels are implicated in mediating Ca2+ signaling in cancer cells. In this review, we are focusing on TRPC1, a member of the TRP protein superfamily and a potential modulator of store-operated Ca2+ entry (SOCE) pathways. While TRPC1 is ubiquitously expressed in most tissues, its dysregulated activity may contribute to the hallmarks of various types of cancers, including breast cancer, pancreatic cancer, glioblastoma multiforme, lung cancer, hepatic cancer, multiple myeloma, and thyroid cancer.
  • 511
  • 27 May 2021
Topic Review
TRPC Channels in Cardiac Plasticity
The heart flexibly changes its structure in response to changing environments and oxygen/nutrition demands of the body. Increased and decreased mechanical loading induces hypertrophy and atrophy of cardiomyocytes, respectively. In physiological conditions, these structural changes of the heart are reversible. However, chronic stresses such as hypertension or cancer cachexia cause irreversible remodeling of the heart, leading to heart failure. Accumulating evidence indicates that calcium dyshomeostasis and aberrant reactive oxygen species production cause pathological heart remodeling. Canonical transient receptor potential (TRPC) is a nonselective cation channel subfamily whose multimodal activation or modulation of channel activity play important roles in a plethora of cellular physiology.
  • 515
  • 03 Jun 2021
Topic Review
TRPC Channels
Transient receptor potential canonical (TRPC) channels are ubiquitously expressed in excitable and non-excitable cardiac cells where they sense and respond to a wide variety of physical and chemical stimuli. As other TRP channels, TRPC channels may form homo or heterotetrameric ion channels, and they can associate with other membrane receptors and ion channels to regulate intracellular calcium concentration. Dysfunctions of TRPC channels are involved in many types of cardiovascular diseases. Significant increase in the expression of different TRPC isoforms was observed in different animal models of heart infarcts and in vitro experimental models of ischemia and reperfusion. TRPC channel-mediated increase of the intracellular Ca2+ concentration seems to be required for the activation of the signaling pathway that plays minor roles in the healthy heart, but they are more relevant for cardiac responses to ischemia, such as the activation of different factors of transcription and cardiac hypertrophy, fibrosis, and angiogenesis.
  • 658
  • 26 May 2021
Topic Review
TRP Channels on the Progression of Liver Diseases
The liver serves as a vital organ with a primary metabolic function. In addition, it possesses the ability to synthesize and decompose proteins, regulate overall blood volume, eliminate toxins, and regulate immunity, all of which are crucial for maintaining normal physiological activities in the human body. 
  • 512
  • 25 Aug 2023
Topic Review
TRIM22. A Multitasking Antiviral Factor
Viral invasion of target cells triggers an immediate intracellular host defense system aimed at preventing further propagation of the virus. Viral genomes or early products of viral replication are sensed by a number of pattern recognition receptors, leading to the synthesis and production of type I interferons (IFNs) that, in turn, activate a cascade of IFN-stimulated genes (ISGs) with antiviral functions. Among these, several members of the tripartite motif (TRIM) family are antiviral executors.
  • 470
  • 29 Jul 2021
Topic Review
TRIM Proteins Family
TRIM (TRIpartite Motif-containing) proteins family is one of the largest groups of E3 ubiquitin ligases. Among them, interest in TRIM8 has greatly increased in recent years. TRIM8 functions are not limited to ubiquitination, and it has a role either as an oncogene or as a tumor suppressor gene, acting as a “double-edged weapon”. This is linked to its involvement in the selective regulation of three pivotal cellular signaling pathways: the p53 tumor suppressor, NF-κB and JAK-STAT pathways.
  • 372
  • 29 Mar 2021
Topic Review
TRIM
The tripartite motif (TRIM) gene family is a large group of E3 ubiquitin ligase proteins that can also have proteasome-independent functions. TRIM/RBCC are a large family of proteins that include more than 80 proteins, most of which act as E3 ligases and catalyze the direct transfer of Ubiquitin, SUMO and ISG15 on specific protein substrates. They are involved in oncogenesis processes and in cellular immunity.
  • 577
  • 19 May 2022
Topic Review
Tregs in IBD
Inflammatory bowel disease (IBD) is a complex inflammatory chronic and pathological condition that includes Crohn’s disease (CD) and Ulcerative colitis (UC). CD primarily affects the small and large intestine whereas the prime targets for UC are colon and rectum. Immune sentinel subsets of CD4+ T cells such as Th (T helper cells)-1, Th2, Th17, and regulatory T cells (Tregs) play a crucial role in the pathogenesis of IBD. Immunological balance between effector Th cells and Trges is essential for maintaining immune-homeostasis. Immunoregulatory Trges are characterized by the expression of transcription factor Forkhead box P3 (Foxp3), and surface marker CD25, and are functionally immunosuppressive & important for immune tolerance. Therapeutic arrangement based on Tregs is important to address the systemic inflammatory and autoimmune diseases such as IBD and rheumatoid arthritis.
  • 543
  • 11 Aug 2021
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