Saber Gharagozlou , NicolaA.M. Wright , Luis Murguia-Favela , Juliette Eshleman , Julian Midgley , Seha Saygili , Georgie Mathew , Harry Lesmana , Nadia Makkoukdji , Melissa Gans , Julie D. Saba
{"title":"Sphingosine phosphate lyase insufficiency syndrome as a primary immunodeficiency state","authors":"Saber Gharagozlou , NicolaA.M. Wright , Luis Murguia-Favela , Juliette Eshleman , Julian Midgley , Seha Saygili , Georgie Mathew , Harry Lesmana , Nadia Makkoukdji , Melissa Gans , Julie D. Saba","doi":"10.1016/j.jbior.2024.101058","DOIUrl":"10.1016/j.jbior.2024.101058","url":null,"abstract":"<div><div>Sphingosine phosphate lyase insufficiency syndrome (SPLIS) is a genetic disease associated with renal, endocrine, neurological, skin and immune defects. SPLIS is caused by inactivating mutations in <em>SGPL1</em>, which encodes sphingosine phosphate lyase (SPL). SPL catalyzes the irreversible degradation of the bioactive sphingolipid sphingosine-1-phosphate (S1P), a key regulator of lymphocyte egress. The SPL reaction represents the only exit point of sphingolipid metabolism, and SPL insufficiency causes widespread sphingolipid derangements that could additionally contribute to immunodeficiency. Herein, we review SPLIS, the sphingolipid metabolic pathway, and various roles sphingolipids play in immunity. We then explore SPLIS-related immunodeficiency by analyzing data available in the published literature supplemented by medical record reviews in ten SPLIS children. We found 93% of evaluable SPLIS patients had documented evidence of immunodeficiency. Many of the remainder of cases were unevaluable due to lack of available immunological data. Most commonly, SPLIS patients exhibited lymphopenia and T cell-specific lymphopenia, consistent with the established role of the S1P/S1P1/SPL axis in lymphocyte egress. However, low B and NK cell counts, hypogammaglobulinemia, and opportunistic infections with bacterial, viral and fungal pathogens were observed. Diminished responses to childhood vaccinations were less frequently observed. Screening blood tests quantifying recent thymic emigrants identified some lymphopenic SPLIS patients in the newborn period. Lymphopenia has been reported to improve after cofactor supplementation in some SPLIS patients, indicating upregulation of SPL activity. A variety of treatments including immunoglobulin replacement, prophylactic antimicrobials and special preparation of blood products prior to transfusion have been employed in SPLIS. The diverse immune consequences in SPLIS patients suggest that aberrant S1P signaling may not fully explain the extent of immunodeficiency. Further study will be required to fully elucidate the complex mechanisms underlying SPLIS immunodeficiency and determine the most effective prophylaxis against infection.</div></div>","PeriodicalId":7214,"journal":{"name":"Advances in biological regulation","volume":"94 ","pages":"Article 101058"},"PeriodicalIF":0.0,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142492793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Expanding functions of the phosphatidylinositol/phosphatidate lipid transporter, PITPNC1 in physiology and in pathology.","authors":"Shamshad Cockcroft","doi":"10.1016/j.jbior.2024.101056","DOIUrl":"https://doi.org/10.1016/j.jbior.2024.101056","url":null,"abstract":"<p><p>PITPNC1 was the last of the PITPs to be identified and has been characterized as a binding protein for phosphatidylinositol and phosphatidate. In mammals, PITPNC1 is expressed as two splice variants whilst in zebrafish is expressed from two separate genes. The two splice variants have different expression profiles with the long splice variant having a prominent role in the brain. Several physiological functions have been identified including neuronal and metabolic functions. PITPNC1 also plays a significant role in cancer and has been identified as a risk factor in type 2 diabetes. Here, we review our current understanding of PITPNC1 in cell physiology and pathology.</p>","PeriodicalId":7214,"journal":{"name":"Advances in biological regulation","volume":" ","pages":"101056"},"PeriodicalIF":0.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hyperactivation of NF-κB signaling in splicing factor mutant myelodysplastic syndromes and therapeutic approaches.","authors":"Andrea Pellagatti, Jacqueline Boultwood","doi":"10.1016/j.jbior.2024.101055","DOIUrl":"https://doi.org/10.1016/j.jbior.2024.101055","url":null,"abstract":"<p><p>The transcription factor NF-κB plays a critical role in the control of innate and adaptive immunity and inflammation. Several recent studies have demonstrated that the mutation of different splicing factor genes, including SF3B1, SRSF2 and U2AF1, in myelodysplastic syndromes (MDS) and acute myeloid leukemia (AML) result in hyperactive NF-κB signaling through the aberrant splicing of different target genes. The presence of U2AF1 and SF3B1 mutations in the bone marrow cells of MDS and AML patients induces oncogenic isoforms of the target gene IRAK4, leading to hyperactivation of NF-κB signaling and an increase in the fitness of leukemic stem and progenitor cells (LSPCs). The potent IRAK4 inhibitor CA-4948 has shown efficacy in both pre-clinical studies and MDS clinical trials, with splicing factor mutant patients showing the higher response rates. Emerging data has, however, revealed that co-targeting of IRAK4 and its paralog IRAK1 is required to maximally suppress LSPC function in vitro and in vivo by inducing cellular differentiation. These findings provide a link between the presence of the commonly mutated splicing factor genes and activation of innate immune signaling pathways in myeloid malignancies and have important implications for targeted therapy in these disorders.</p>","PeriodicalId":7214,"journal":{"name":"Advances in biological regulation","volume":" ","pages":"101055"},"PeriodicalIF":0.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Upstream and downstream pathways of diacylglycerol kinase : Novel phosphatidylinositol turnover-independent signal transduction pathways.","authors":"Fumio Sakane, Chiaki Murakami, Hiromichi Sakai","doi":"10.1016/j.jbior.2024.101054","DOIUrl":"https://doi.org/10.1016/j.jbior.2024.101054","url":null,"abstract":"<p><p>Diacylglycerol kinase (DGK) phosphorylates diacylglycerol (DG) to produce phosphatidic acid (PA). Mammalian DGK comprise ten isozymes (α-κ) that regulate a wide variety of physiological and pathological events. Recently, we revealed that DGK isozymes use saturated fatty acid (SFA)/monosaturated fatty acid (MUFA)-containing and docosahexaenoic acid (22:6)-containing DG species, but not phosphatidylinositol (PI) turnover-derived 18:0/20:4-DG. For example, DGKδ, which is involved in the pathogenesis of type 2 diabetes, preferentially uses SFA/MUFA-containing DG species, such as 16:0/16:0- and 16:0/18:1-DG species, in high glucose-stimulated skeletal muscle cells. Moreover, DGKδ, which destabilizes the serotonin transporter (SERT) and regulates the serotonergic system in the brain, primarily generates 18:0/22:6-PA. Furthermore, 16:0/16:0-PA is produced by DGKζ in Neuro-2a cells during neuronal differentiation. We searched for SFA/MUFA-PA- and 18:0/22:6-PA-selective binding proteins (candidate downstream targets of DGKδ) and found that SFA/MUFA-PA binds to and activates the creatine kinase muscle type, an energy-metabolizing enzyme, and that 18:0/22:6-PA interacts with and activates Praja-1, an E3 ubiquitin ligase acting on SERT, and synaptojanin-1, a key player in the synaptic vesicle cycle. Next, we searched for SFA/MUFA-DG-generating enzymes upstream of DGKδ. We found that sphingomyelin synthase (SMS)1, SMS2, and SMS-related protein (SMSr) commonly act as phosphatidylcholine (PC)-phospholipase C (PLC) and phosphatidylethanolamine (PE)-PLC, generating SFA/MUFA-DG species, in addition to SMS and ceramide phosphoethanolamine synthase. Moreover, the orphan phosphatase PHOSPHO1 showed PC- and PE-PLC activities that produced SFA/MUFA-DG. Although PC- and PE-PLC activities were first described 70-35 years ago, their proteins and genes were not identified for a long time. We found that DGKδ interacts with SMSr and PHOSPHO1, and that DGKζ binds to SMS1 and SMSr. Taken together, these results strongly suggest that there are previously unrecognized signal transduction pathways that include DGK isozymes and generate and utilize SFA/MUFA-DG/PA or 18:0/22:6-DG/PA but not PI-turnover-derived 18:0/20:4-DG/PA.</p>","PeriodicalId":7214,"journal":{"name":"Advances in biological regulation","volume":" ","pages":"101054"},"PeriodicalIF":0.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142378970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tom D. Bunney, Charis Kampyli , Ashley Gregory , Matilda Katan
{"title":"Characterisation of molecular mechanisms for PLCγ2 disease-linked variants","authors":"Tom D. Bunney, Charis Kampyli , Ashley Gregory , Matilda Katan","doi":"10.1016/j.jbior.2024.101053","DOIUrl":"10.1016/j.jbior.2024.101053","url":null,"abstract":"<div><div>The phospholipase C enzyme PLCγ2 is best characterised in the context of immune cell regulation. Furthermore, many mutations discovered in PLCγ2 have been linked to the development of complex immune disorders as well as resistance to ibrutinib treatment in chronic lymphocytic leukaemia. Importantly, it has also been found that a rare variant of PLCγ2 (P522R) has a protective role in Alzheimer's disease (AD). Despite initial characterisation of these disease-linked variants, a comprehensive understanding of their differences and underpinning molecular mechanisms, needed to facilitate therapeutic efforts, is lacking. Here, we used available structural insights for PLCγ enzymes to further analyse PLCγ2 M1141K mutation, representative for mutations in immune disorders and cancer resistance, and the AD-protective variant, PLCγ2 P522R. Together with several other mutations in the autoinhibitory interface, the PLCγ2 M1141K mutation was strongly activating in a cell-based assay, under basal and stimulated conditions. Measurements of PLC activity in various <em>in vitro</em> assays demonstrated enhanced activity of PLCγ2 M1141K while the activity of PLCγ2 P522R was not significantly different from the WT. Similar trends were observed in several other assays, including direct liposome binding. However, an enhanced rate of phosphorylation of a functionally important tyrosine by Btk <em>in vitro</em> was observed for PLCγ2 P522R variants. To further assess implications of these <em>in vitro</em> findings in a cellular context relevant for the PLCγ2 P522R variant, microglia (BV2) stable cell lines were generated and analysed under growth conditions. The PLC activity in cells expressing PLCγ2 P522R at physiologically relevant levels was clearly enhanced compared to the WT, and differences in cell morphology observed. These data, combined with the structural insights, suggest that the PLCγ2 P522R variant has subtle, localised structural changes that do not directly affect the PLC activity by compromising autoinhibition, as determined for PLCγ2 M1141K. It is also likely that in contrast to the PLCγ2 M1141K, the functional impact of the P522R substitution completely depends on further interactions with upstream kinases and other regulatory proteins in a relevant cellular context, where changes in the PLCγ2 P522R variant could facilitate processes such as phosphorylation and protein-protein interactions.</div></div>","PeriodicalId":7214,"journal":{"name":"Advances in biological regulation","volume":"94 ","pages":"Article 101053"},"PeriodicalIF":0.0,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142306937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Marrazzo , A. Sargenti , R. Costa , F. Paris , J. Peca , D. Piras , V. Pizzuti , S. Pasqua , F. Alviano
{"title":"Label-free live characterization of mesenchymal stem cell spheroids by biophysical properties measurement","authors":"P. Marrazzo , A. Sargenti , R. Costa , F. Paris , J. Peca , D. Piras , V. Pizzuti , S. Pasqua , F. Alviano","doi":"10.1016/j.jbior.2024.101052","DOIUrl":"10.1016/j.jbior.2024.101052","url":null,"abstract":"<div><p>Three-dimensional (3D) cell culture has become a consolidated method in the stem cell field, where mesenchymal stromal stem cells (MSCs) can be used to generate <em>in vitro</em> spheroid aggregates called MSC-Spheroids (MSph). MSph is a floating cluster of stem cells similar to those in literature are known as bone marrow-derived “mesenspheres”. Even though MSC properties are shared by MSph, depending on the cell type and their tissue source, the morphology and degree of compaction of the MSph can be variable, creating limitations in such a cell model. Thus, during culture, a variation in stem cell functionality and viability, in addition to the suitability for comparing MSph in some experimental protocols, can be affected by spheroid biophysical intrinsic properties like mass density. To investigate this limitation and provide a new method for researchers, MSph of seven different tissue sources were compared by combining mass density, weight, and size evaluations with viability assays for ATP measurement. MSph cultured in traditional static conditions showed decreased in viability over the days of culture, while mass density exhibited different trends among cell types. Additionally, treatment of MSph with a non-toxic concentration of a natural compound cell regulator, such as plumbagin, altered the mass density of a selected cell type, thereby confirming the efficacy of the biophysical approach in monitoring MSph variability post-treatment. The results encourage using MSph in the early days of culture after their formation to ensure viability and likely retention of the stem cell phenotype.</p></div>","PeriodicalId":7214,"journal":{"name":"Advances in biological regulation","volume":"94 ","pages":"Article 101052"},"PeriodicalIF":0.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S221249262400040X/pdfft?md5=36840907f04b93a185dcc4f92bc58052&pid=1-s2.0-S221249262400040X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142240244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Fiordoro , C. Rosano , E. Pechkova , S. Barocci , A. Izzotti
{"title":"Epigenetic modulation of immune cells: Mechanisms and implications","authors":"S. Fiordoro , C. Rosano , E. Pechkova , S. Barocci , A. Izzotti","doi":"10.1016/j.jbior.2024.101043","DOIUrl":"10.1016/j.jbior.2024.101043","url":null,"abstract":"<div><div>Epigenetic modulation of the immune response entails modifiable and inheritable modifications that do not modify the DNA sequence. While there have been many studies on epigenetic changes in tumor cells, there is now a growing focus on epigenetically mediated changes in immune cells of both the innate and adaptive systems. These changes have significant implications for both the body's response to tumors and the development of potential therapeutic vaccines. This study primarily discusses the key epigenetic alterations, with a specific emphasis on pseudouridination, as well as non-coding RNAs and their transportation, which can lead to the development of cancer and the acquisition of new phenotypic traits by immune cells. Furthermore, the advancement of therapeutic vaccinations targeting the tumor will be outlined.</div></div>","PeriodicalId":7214,"journal":{"name":"Advances in biological regulation","volume":"94 ","pages":"Article 101043"},"PeriodicalIF":0.0,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142278750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Impact of cellular ATP levels on cell viability in response to fluorouracil through lysophosphatidic acid (LPA) receptor-4 (LPA4) and LPA6 in colon cancer cells","authors":"Miwa Takai, Mao Yamamoto, Narumi Yashiro, Shion Nagano, Yuka Kusumoto, Moemi Tamura, Anri Taniguchi, Toshifumi Tsujiuchi","doi":"10.1016/j.jbior.2024.101042","DOIUrl":"10.1016/j.jbior.2024.101042","url":null,"abstract":"<div><p>Lysophosphatidic acid (LPA) signaling via LPA receptors (LPA<sub>1</sub> to LPA<sub>6</sub>) mediates various aspects of cancer cell behaviors. This study aimed to investigate the variation in intracellular ATP levels and its impact on cell viability in response to fluorouracil (5-FU) through LPA<sub>4</sub> and LPA<sub>6</sub> in colon cancer DLD-1 cells. LPA<sub>4</sub> and LPA<sub>6</sub> are linked to Gs and Gi proteins. Gs protein stimulates the activity of adenylyl cyclase, which catalyzes the conversion of ATP to cAMP, whereas Gi protein inhibits this activity. In cell survival assay, cells were treated with 5-FU every 24 h for 3 days. The viability in response to 5-FU in DLD-1 cells was enhanced by LPA<sub>4</sub> and LPA<sub>6</sub> knockdowns. Furthermore, LPA<sub>4</sub> and LPA<sub>6</sub> knockdowns reduced the expression of cleaved-PARP1 protein when cells were treated with 5-FU. Since ethidium bromide (EtBr) reduces mitochondrial DNA level in cultured cells, EtBr-treated (DLD-EtBr) cells were generated from DLD-1 cells. The viability to 5-FU in DLD-EtBr cells was higher than that of DLD-1 cells. Additionally, culturing DLD-1 cells in a low glucose-containing medium led to increased viability to 5-FU. <em>LPAR4</em> and <em>LPAR6</em> expressions were reduced in both DLD-EtBr and low glucose-treated cells. The cellular ATP levels were significantly decreased in DLD-1 cells following EtBr treatment and exposure to low glucose conditions. Conversely, in the presence of LPA, LPA<sub>4</sub> and LPA<sub>6</sub> knockdowns resulted in a marked elevation of ATP levels. These results suggest that cell viability to 5-FU is negatively regulated via the activation of LPA<sub>4</sub>-and LPA<sub>6</sub>-Gs protein pathways in DLD-1 cells rather than Gi protein.</p></div>","PeriodicalId":7214,"journal":{"name":"Advances in biological regulation","volume":"93 ","pages":"Article 101042"},"PeriodicalIF":0.0,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141639069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Advancements in unravelling the fundamental function of the ATAD3 protein in multicellular organisms","authors":"Divya Goel , Sudhir Kumar","doi":"10.1016/j.jbior.2024.101041","DOIUrl":"https://doi.org/10.1016/j.jbior.2024.101041","url":null,"abstract":"<div><p>ATPase family AAA domain containing protein 3, commonly known as ATAD3 is a versatile mitochondrial protein that is involved in a large number of pathways. ATAD3 is a transmembrane protein that spans both the inner mitochondrial membrane and outer mitochondrial membrane. It, therefore, functions as a connecting link between the mitochondrial lumen and endoplasmic reticulum facilitating their cross-talk. ATAD3 contains an N-terminal domain which is amphipathic in nature and is inserted into the membranous space of the mitochondria, while the C-terminal domain is present towards the lumen of the mitochondria and contains the ATPase domain. ATAD3 is known to be involved in mitochondrial biogenesis, cholesterol transport, hormone synthesis, apoptosis and several other pathways. It has also been implicated to be involved in cancer and many neurological disorders making it an interesting target for extensive studies. This review aims to provide an updated comprehensive account of the role of ATAD3 in the mitochondria especially in lipid transport, mitochondrial-endoplasmic reticulum interactions, cancer and inhibition of mitophagy.</p></div>","PeriodicalId":7214,"journal":{"name":"Advances in biological regulation","volume":"93 ","pages":"Article 101041"},"PeriodicalIF":0.0,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141438616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
María José González Armijos, Thais Fernandes Bassani, Clara Couto Fernandez, Michele Angela Rodrigues , Dawidson Assis Gomes
{"title":"Decoding how receptor tyrosine kinases (RTKs) mediate nuclear calcium signaling","authors":"María José González Armijos, Thais Fernandes Bassani, Clara Couto Fernandez, Michele Angela Rodrigues , Dawidson Assis Gomes","doi":"10.1016/j.jbior.2024.101033","DOIUrl":"https://doi.org/10.1016/j.jbior.2024.101033","url":null,"abstract":"<div><p>Calcium (Ca<sup>2+</sup>) is a highly versatile intracellular messenger that regulates several cellular processes. Although it is unclear how a single-second messenger coordinates various effects within a cell, there is growing evidence that spatial patterns of Ca<sup>2+</sup> signals play an essential role in determining their specificity. Ca<sup>2+</sup> signaling patterns can differ in various cell regions, and Ca<sup>2+</sup> signals in the nuclear and cytoplasmic compartments have been observed to occur independently. The initiation and function of Ca<sup>2+</sup> signaling within the nucleus are not yet fully understood. Receptor tyrosine kinases (RTKs) induce Ca<sup>2+</sup> signaling resulting from phosphatidylinositol 4,5-bisphosphate (PIP2) hydrolysis and inositol 1,4,5-trisphosphate (InsP3) formation within the nucleus. This signaling mechanism may be responsible for the effects of specific growth factors on cell proliferation and gene transcription. This review highlights the recent advances in RTK trafficking to the nucleus and explains how these receptors initiate nuclear calcium signaling.</p></div>","PeriodicalId":7214,"journal":{"name":"Advances in biological regulation","volume":"92 ","pages":"Article 101033"},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140914063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}