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The TSC1–TSC2 complex: a molecular switchboard controlling cell growth
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TSC1 and TSC2 are the tumour-suppressor genes mutated in the tumour syndrome TSC (tuberous sclerosis complex). Their gene products form a complex that has become the focus of many signal transduction researchers. The TSC1–TSC2 (hamartin–tuberin) complex, through its GAP (GTPase-activating protein) activity towards the small G-protein Rheb (Ras homologue enriched in brain), is a critical negative regulator of mTORC1 (mammalian target of rapamycin complex 1). As mTORC1 activity controls anabolic processes to promote cell growth, it is exquisitely sensitive to alterations in cell growth conditions. Through numerous phosphorylation events, the TSC1–TSC2 complex has emerged as the sensor and integrator of these growth conditions, relaying signals from diverse cellular pathways to properly modulate mTORC1 activity. In the present review we focus on the molecular details of TSC1–TSC2 complex regulation and function as it relates to the control of Rheb and mTORC1.
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“Whereas it appears that specific metabolites signal to mTORC1 through the Rag GTPase axis, stress conditions such as hypoxia, DNA damage stress, ER stress, and growth factor and survival signaling, are filtered through to the Rheb GTPase through TSCC by post-translational modification (Kwiatkowski, 2003; Huang and Manning, 2008; Tomasoni and Mondino, 2011; Demetriades et al., 2016).”
From Signal integration in the (m)TORC1 growth pathway (2018) · cites this paper as Huang and Manning, 2008
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“Complete loss of either TSC1 or TSC2 inactivates the TSC1/TSC2/ TBC1D7 leading to constitutive high-level activation of mTORC1 in TSC tumors (9, 10).”
BackgroundFonseca, B. D., Alain, T., Finestone, L. K., Huang, B., Rolfe, M. J., Jiang, T., Yao, Z., Hernández, G., Bennett, C. F., & Proud, C. G. (2011) · Journal of Biological Chemistry · doi:10.1074/jbc.m111.260794 · Cited by 45
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“This genetic disorder is caused by mutations in either the TSC1 or the TSC2 gene, which results in aberrant activation of the mammalian target of the rapamycin complex 1 (mTORC1) signaling pathway [3].”
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Reina‐Campos, M., Shelton, P. M., Díaz-Meco, M. T., & Moscat, J. (2018) · Biochimica et Biophysica Acta (BBA) - Reviews on Cancer · doi:10.1016/j.bbcan.2018.04.010 · Cited by 46
“In normal cells, under conditions of nutrient shortage and absence of growth signals, mTORC1 remains inactive, due to the TSC1-TSC2 complex that maintains mTORC1-activating GTPase (Rheb1) in the inactive, GDP conformation [39].”
BackgroundCordover, E., Wei, J., Patel, C., Shan, N. L., Gionco, J. T., Sargsyan, D., Wu, R., Cai, L., Kong, A. T., Jacinto, E., et al. (2019) · Chemical Research in Toxicology · doi:10.1021/acs.chemrestox.9b00376 · Cited by 45
Dong, P., Wang, X., Liu, L., Tang, W., Ma, L., Zeng, W., Sun, S., Zhang, L., Zhang, N., Shen, X., et al. (2020) · Journal of Hepatology · doi:10.1016/j.jhep.2020.06.027 · Cited by 45
Kwak, D., Choi, S., Jeong, H., Jang, J., Lee, Y., Jeon, H., Lee, M. N., Noh, J., Cho, K., Yoo, J. S., et al. (2012) · Journal of Biological Chemistry · doi:10.1074/jbc.m111.326538 · Cited by 44
“At themolecular level, many of these signals converge on TSC1/TSC2 and small GTPase Rheb to regulate mTORC1 (10).”
BackgroundInherited Cancer Syndromes in Children and Young Adults
D'Orazio, J. A. (2010) · Journal of Pediatric Hematology/Oncology · doi:10.1097/mph.0b013e3181ced34c · Cited by 45
“In normal cells, tuberin heterodimerizes with hamartin to form a regulatory GTPase-activating protein complex that inhibits cellular growth and proliferation through the mTOR pathway.(256,257) Loss-of-function mutations in either TSC1 or TSC2 promote allelic insufficiency and tumors develop through somatic loss of the…”
BackgroundMaskey, R. S., Wang, F., Lehman, E., Wang, Y., Emmanuel, N., Zhong, W., Jin, G., Abraham, R. T., Arndt, K. T., Myers, J. S., et al. (2020) · Cell Cycle · doi:10.1080/15384101.2020.1859195 · Cited by 45
“AKT is also known to regulate mTORC1 activity by inhibiting TSC2 function [35].”
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Epidemiology, Genetic Etiology, and Intervention of Premature Ovarian Insufficiency
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Survival by self-destruction: A role for autophagy in the placenta?
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“It is well-established that mTORC1 signalling can be activated by PKB via phosphorylation of TSC1/2 (15).”
BackgroundInfluentialWoodrum, C., Nobil, A. M., & Dabora, S. L. (2010) · Journal of Translational Medicine · doi:10.1186/1479-5876-8-14 · Cited by 44
“The multiple roles of this important regulatory pathway have been described in recent reviews [12-16].”
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Hamilton, D. L., Philp, A., MacKenzie, M. G., Patton, A., Towler, M. C., Gallagher, I. J., Bodine, S. C., & Baar, K. (2014) · American Journal of Physiology-Endocrinology and Metabolism · doi:10.1152/ajpendo.00674.2013 · Cited by 49
“lated by AMPK and PKB, respectively (23).”
BackgroundIntegration of signals generated by nutrients, hormones, and exercise in skeletal muscle.
Kimball, S. (2014) · American Journal of Clinical Nutrition · doi:10.3945/ajcn.113.068387 · Cited by 46
“5 Abbreviations used: Akt, Ak transforming; AMPK, AMP-activated protein kinase; ca, constitutively active; c7orf59, chromosome 7 open reading frame 59; eIF, eukaryotic initiation factor; ERK, extracellular-regulated protein kinase; FKBP12, FK506 binding protein 12; GAP, GTPase activator protein; GATOR, GAP activity to…”
BackgroundInfluentialFabian, C. J., Kimler, B. F., Phillips, T. A., Nydegger, J. L., Kreutzjans, A. L., Carlson, S. E., Hidaka, B. H., Metheny, T., Zalles, C. M., Mills, G. B., et al. (2015) · Cancer Prevention Research · doi:10.1158/1940-6207.capr-14-0336 · Cited by 44
Amot and Yap1 regulate neuronal dendritic tree complexity and locomotor coordination in mice
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The Role of mTOR and eIF Signaling in Benign Endometrial Diseases
Driva, T. S., Schatz, C., Sobočan, M., & Haybaeck, J. (2022) · International Journal of Molecular Sciences · doi:10.3390/ijms23073416 · Cited by 44
“activity is enhanced by TSC1–TSC2 complex [21].”
BackgroundInfluentialThe mTORC1-SLC4A7 axis stimulates bicarbonate import to enhance de novo nucleotide synthesis
Ali, E. S., Lipońska, A., O’Hara, B. P., Amici, D. R., Torno, M. D., Gao, P., Asara, J. M., Yap, M.-N. F., Mendillo, M. L., & Ben‐Sahra, I. (2022) · Molecular Cell · doi:10.1016/j.molcel.2022.06.008 · Cited by 46
Rapley, J., Oshiro, N., Ortiz-Vega, S., & Avruch, J. (2011) · Journal of Biological Chemistry · doi:10.1074/jbc.m111.245449 · Cited by 42
GADD34 mediates cytoprotective autophagy in mutant huntingtin expressing cells via the mTOR pathway
Hyrskyluoto, A., Reijonen, S., Kivinen, J., Lindholm, D., & Korhonen, L. (2011) · Experimental Cell Research · doi:10.1016/j.yexcr.2011.08.020 · Cited by 43
Ge, X., Zhang, Y., & Jiang, H. (2013) · Molecular and Cellular Endocrinology · doi:10.1016/j.mce.2013.03.017 · Cited by 42
PIP4kγ is a substrate for mTORC1 that maintains basal mTORC1 signaling during starvation
Mackey, A. M., Sarkes, D. A., Bettencourt, I. A., Asara, J. M., & Rameh, L. E. (2014) · Science Signaling · doi:10.1126/scisignal.2005191 · Cited by 44
Peruchetti, D. B., Cheng, J., Caruso‐Neves, C., & Guggino, W. B. (2014) · Journal of Biological Chemistry · doi:10.1074/jbc.m114.549717 · Cited by 43
“To determine whether such dissociation occurs, we carried out co-immunoprecipitations of TSC1 and TSC2.”
BackgroundInfluentialTuberous sclerosis complex: From molecular biology to novel therapeutic approaches
Switon, K., Kotulska, K., Janusz, A., Zmorzyńska, J., & Jaworski, J. (2016) · IUBMB Life · doi:10.1002/iub.1579 · Cited by 44
“TSC1 and TSC2 encode the proteins hamartin and tuberin, respectively, which together form the TSC (Tsc1-Tsc2; (7,8)).”
BackgroundRindom, E., & Vissing, K. (2016) · Frontiers in Physiology · doi:10.3389/fphys.2016.00547 · Cited by 44
“In basal conditions, TSC2 stimulates Rheb’s GTPase activity, which, in turn, leads to conversion of active GTP-Rheb into inactive GDP-Rheb (Huang and Manning, 2008), thereby repressing mTORC1 activity.”
BackgroundSpliced X-box Binding Protein 1 Stimulates Adaptive Growth Through Activation of mTOR
Wang, X., Deng, Y., Zhang, G., Li, C., Ding, G., May, H. I., Tran, D. H., Luo, X., Jiang, D.-S., Li, D. ‘., et al. (2019) · Circulation · doi:10.1161/circulationaha.118.038924 · Cited by 43
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“A connection between mTORC1 and early plasma cell differentiation is also supported by previous work showing that mutation of Tsc1, a negative regulator of mTORC1 (30), allows plasma cell differentiation to initiate even in the absence of the central UPR regulator Xbp1 (31, 32).”
BackgroundLi, A., Fan, S., Xu, Y., Meng, J., Shen, X., Mao, J., Zhang, L., Zhang, X., Moeckel, G., Wu, D., et al. (2017) · Journal of Cellular and Molecular Medicine · doi:10.1111/jcmm.13091 · Cited by 42
“Previous studies demonstrated that rapamycin can effectively inhibit mTORC1 and its downstream factors [59, 60].”
BackgroundA pathway and network review on beta-adrenoceptor signaling and beta blockers in cardiac remodeling
Yang, J., Liu, Y., Fan, X., Li, Z., & Cheng, Y. (2013) · Heart Failure Reviews · doi:10.1007/s10741-013-9417-4 · Cited by 43
“GSK-3a also negatively regulates hypertrophic growth [98, 99], and one of the key mechanisms is dysfunction of mTORC1, which is a critical regulator in cell growth [100].”
BackgroundmTOR-Mediated Antioxidant Activation in Solid Tumor Radioresistance
Woo, Y., Lee, H.-J., Jung, Y. M., & Jung, Y. (2019) · Journal of Oncology · doi:10.1155/2019/5956867 · Cited by 42
“Tuberous sclerosis complexes 1 and 2 (TSC1 and TSC2), also known as hamartin and tuberin, respectively, attenuate mTORC1 activity via inhibiting Ras homolog enriched in brain (Rheb) [106].”
BackgroundLiu, Y., Zhong, W., Zhang, J., Chen, W., Lu, Y., Qiao, Y., Zeng, Z., Huang, H., Zou, F., 孟小晶, et al. (2021) · Frontiers in Pharmacology · doi:10.3389/fphar.2021.739220 · Cited by 42
“Rheb activates mTOR signaling, including increased p-p70S6K and p-4E-BP1 (Huang and Manning 2008).”
BackgroundQuercetin mediates TSC2-RHEB-mTOR pathway to regulate chondrocytes autophagy in knee osteoarthritis
Lv, S., Wang, X., Jin, S., Shen, S., Wang, R., & Tong, P. (2022) · Gene · doi:10.1016/j.gene.2022.146209 · Cited by 44
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Clinical activity of mammalian target of rapamycin inhibitors in solid tumors
Alvarado, Y., Mita, M. M., Vemulapalli, S., Mahalingam, D., & Mita, A. C. (2011) · Targeted Oncology · doi:10.1007/s11523-011-0178-5 · Cited by 41
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RIPK1 Promotes Energy Sensing by the mTORC1 Pathway
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“AMP-kinase, a major cellular energy sensor, can activate TSC1/2 by phosphorylation of a different residue (Huang and Manning, 2008).”
BackgroundAutophagic Mechanism in Anti-Cancer Immunity: Its Pros and Cons for Cancer Therapy
Li, Y.-Y., Feun, L. G., Thongkum, A., Tu, C.-H., Chen, S.-M., Wangpaichitr, M., Wu, C., Kuo, M. T., & Savaraj, N. (2017) · International Journal of Molecular Sciences · doi:10.3390/ijms18061297 · Cited by 40
“It is known that TSC2 complex inhibits mTOR activation to promote autophagy through its GTPase protein (GAP) activity toward small GTPase Rheb [9,10].”
BackgroundTuberous Sclerosis Complex Genotypes and Developmental Phenotype
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Coordination of Rheb lysosomal membrane interactions with mTORC1 activation
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“To investigate whether there is an overlap between the acquisition of resistance by CRISPR-derived knockout cells versus resistance generated by prolonged exposure to drugs, we evaluated the activity of MTORC1 and MAPK pathways.”
InfluentialRole of TSC1 in physiology and diseases
Mallela, K., & Kumar, A. (2021) · Molecular and Cellular Biochemistry · doi:10.1007/s11010-021-04088-3 · Cited by 40
Kim, T. S., Lee, M., Park, M., Kim, S. Y., Shim, M. S., Lee, C. Y., Choi, D. H., & Cho, Y. (2021) · International Journal of Molecular Sciences · doi:10.3390/ijms221810027 · Cited by 40
“REDD1 is known to interact with TSC2 and to increase the inhibitory effect of the TSC1/TSC2 heterodimer on mTORC1 activity [45].”
BackgroundDrug discovery for polycystic kidney disease
Sun, Y., Zhou, H., & Yang, B. (2011) · Acta Pharmacologica Sinica · doi:10.1038/aps.2011.29 · Cited by 42
Identification of Regions Critical for the Integrity of the TSC1-TSC2-TBC1D7 Complex
Lima, A. J. S., Hoogeveen‐Westerveld, M., Nakashima, A., Maat‐Kievit, A., van den Ouweland, A. M. W., Halley, D. J. J., Kikkawa, U., & Nellist, M. D. (2014) · PLoS ONE · doi:10.1371/journal.pone.0093940 · Cited by 42
“of RHEB from its active GTP-bound state to its inactive GDPbound form [4].”
BackgroundChi, O., Barsoum, S., Vega-Cotto, N. M., Jacinto, E., Liu, X., Mellender, S., & Weiss, H. R. (2015) · Neuroscience · doi:10.1016/j.neuroscience.2015.12.045 · Cited by 29
“Active Akt impinges on mTORC1 signaling via negative regulation of TSC1/2 and consequently relieves suppression of mTORC1 by TSC1/2 (Huang and Manning, 2008).”
BackgroundWhat Happens in TBI? A Wide Talk on Animal Models and Future Perspective
Kundu, S., & Singh, S. (2022) · Current Neuropharmacology · doi:10.2174/1570159x20666220706094248 · Cited by 39
TSC2 mediates hyperosmotic stress-induced inactivation of mTORC1
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“Akt also suppresses TSC1/2 (the tuberous sclerosis complex), a GTPase-activating protein that inhibits the GTPase, Rheb (28).”
BackgroundPeng, Z., Yang, L., Wang, T., Han, P., Liu, Z., & Wei, Q. (2014) · The Journal of Urology · doi:10.1016/j.juro.2014.04.096 · Cited by 39
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“The TSC proteins act as a central hub relaying signals from diverse cellular pathways to control mTORC1 activity (2, 3).”
BackgroundGai, Z., Chu, W., Deng, W., Li, W., Li, H. L., He, A., Nellist, M. D., & Wu, G. (2016) · Journal of Molecular Cell Biology · doi:10.1093/jmcb/mjw001 · Cited by 41
Abuhagr, A. M., MacLea, K. S., Mudron, M. R., Chang, S. A., Chang, E. S., & Mykles, D. L. (2016) · Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology · doi:10.1016/j.cbpa.2016.03.018 · Cited by 39
“…cascade involving PI3K, PDK1, and Akt 86 protein kinases (Teleman, 2010). mTORC1 is activated by Rheb-GTP and is inactivated when 87 Rheb-GTPase activating protein (Rheb-GAP or tuberous sclerosis complex 1/2) promotes the 88 hydrolysis of GTP to GDP by Rheb (Huang and Manning, 2008).”
BackgroundInfluentialImport of extracellular ATP in yeast and man modulates AMPK and TORC1 signalling
Forte, G. M. A., Davie, E., Lie, S., Franz‐Wachtel, M., Ovens, A. J., Wang, T., Oakhill, J. S., Maček, B., Hagan, I., & Petersen, J. (2019) · Journal of Cell Science · doi:10.1242/jcs.223925 · Cited by 39
“Consequently, loss of Tsc1/2 function in mammalian cells enhances TORC1 activity (Huang and Manning, 2008).”
BackgroundOncogenic KRAS signaling activates mTORC1 through COUP‐TFII‐mediated lactate production
Byun, J., Park, M., Yun, J. W., Lee, J., Kim, J. S., Cho, S. J., Lee, Y. M., Lee, I., Choi, Y., & Park, K. (2019) · EMBO Reports · doi:10.15252/embr.201847451 · Cited by 39
“It is well established that aberrantly activated PI3K/Akt signaling in cancer cells upregulates mTORC1 activity by deactivating the TSC1-TSC2 complex [2].”
Hu, L., Chen, Y., Martínez-Cortés, I., Coleman, D. N., Dai, H., Liang, Y., Parys, C., Fernández, C., Wang, M., & Loor, J. J. (2020) · Food & Function · doi:10.1039/c9fo02379h · Cited by 42
Evidence for the Contribution of Gut Microbiota to Age-Related Anabolic Resistance
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A specialized Hsp90 co-chaperone network regulates steroid hormone receptor response to ligand
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“Previous work has dissected FNIP1 and Tsc1 interaction with Hsp90 in detail, identifying the C terminus of FNIP1 (FNIP1-D) and Tsc1 (Tsc1-D) as the critical Hsp90-binding element (Baba et al., 2006; Huang and Manning, 2008; Woodford et al., 2016, 2017) (Figure 2A).”
Interneuron Dysfunction in Syndromic Autism: Recent Advances
Takano, T. (2015) · Developmental Neuroscience · doi:10.1159/000434638 · Cited by 41
PRAS40: Target or modulator of mTORC1 signalling and insulin action?
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Harada, M., Benito, J., Yamamoto, S., Kaur, S., Arslan, D., Ramírez, S., Jacamo, R. O., Platanias, L. C., Matsushita, H., Fujimura, T., et al. (2015) · Oncotarget · doi:10.18632/oncotarget.6122 · Cited by 38
“FLT3 is the most frequently mutated gene in AML cells, and approximately 30% of AML patients harbor constitutively activating internal tandem duplication (ITD) mutations known to be associated with poor prognosis [2, 4-6].”
BackgroundHwang, S., Lee, J., Yang, J.-E., Lim, C., Lee, J., Lee, Y., Lee, K., & Kaang, B. (2016) · Molecular Brain · doi:10.1186/s13041-016-0222-6 · Cited by 40
“Furthermore, the loss of the Cterminal GTPase activating protein (GAP) domain of TSC2 would also be predicted to disrupt the action of the TSC1-TSC2 complex on the GTPase Ras homolog expressed in brain (RHEB), thus activating RHEB–GTPdependent stimulation of the mammalian target of rapamycin complex 1 (mTORC1) [41].”
BackgroundHatem, R., Botty, R. E., Château‐Joubert, S., Servely, J., Labiod, D., de Plater, L., Assayag, F., Coussy, F., Callens, C., Vacher, S., et al. (2016) · Oncotarget · doi:10.18632/oncotarget.10195 · Cited by 40
“Both are tumor suppressor genes that negatively regulate mTOR [16, 17].”
BackgroundPEX5 regulates autophagy via the mTORC1-TFEB axis during starvation
Eun, S. Y., Lee, J. N., Nam, I.-K., Liu, Z., So, H., Choe, S., & Park, R. (2018) · Experimental & Molecular Medicine · doi:10.1038/s12276-017-0007-8 · Cited by 38
Natural killer cells in sepsis: Underprivileged innate immune cells
Kumar, V. (2018) · European Journal of Cell Biology · doi:10.1016/j.ejcb.2018.12.003 · Cited by 38
Cryo-EM insight into the structure of MTOR complex 1 and its interactions with Rheb and substrates
Chao, L. H., & Avruch, J. (2019) · F1000Research · doi:10.12688/f1000research.16109.1 · Cited by 41
Moments in autophagy and disease: Past and present
Wen, X., Yang, Y., & Klionsky, D. J. (2021) · Molecular Aspects of Medicine · doi:10.1016/j.mam.2021.100966 · Cited by 39
The Role of Hsp90-R2TP in Macromolecular Complex Assembly and Stabilization
Lynham, J., & Houry, W. A. (2022) · Biomolecules · doi:10.3390/biom12081045 · Cited by 43
Autophagy: Mechanisms, regulation, and its role in tumorigenesis
Parkhitko, A. A., Favorova, O. O., & Henske, E. P. (2013) · Biochemistry (Moscow) · doi:10.1134/s0006297913040044 · Cited by 39
Cilium, centrosome and cell cycle regulation in polycystic kidney disease
Lee, K., Battini, L., & Gusella, G. L. (2011) · Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease · doi:10.1016/j.bbadis.2011.02.008 · Cited by 38
“The serine/threonine kinase mTOR is the key component of the multiprotein complexes mTORC1, which positively controls protein translation, cell metabolism and proliferation, and mTORC2, which is involved in actin cytoskeleton organization and cell survival [56, 57].”
BackgroundSosunov, A. A., McGovern, R. A., Mikell, C. B., Wu, X., Coughlin, D. G., Crino, P. B., Weiner, H. L., Ghatan, S., Goldman, J. E., & McKhann, G. M. (2015) · Acta Neuropathologica Communications · doi:10.1186/s40478-015-0191-5 · Cited by 40
“Loss of function of these genes leads to activation of the mTOR cascade, which is critical for cellular growth and development of numerous organ systems [2-4].”
BackgroundZhang, Y., Jia, Q., Kadel, D., Zhang, X.-F., & Zhang, Q. (2018) · Medical Science Monitor · doi:10.12659/msm.907514 · Cited by 37
“The TSC1/TSC2 complex is a key negative regulator of mTORC1 [11].”
BackgroundLYCHOS is a human hybrid of a plant-like PIN transporter and a GPCR
Bayly-Jones, C., Lupton, C. J., Keen, A. C., Dong, S., Mastos, C., Luo, W., Qian, C., Jones, G. D., Venugopal, H., Chang, Y., et al. (2024) · Nature · doi:10.1038/s41586-024-08012-9 · Cited by 36
“Activated mTORC1 phosphorylates downstream effectors, including ribosomal S6 kinase and eukaryotic initiation factor 4E binding protein 1 (4EBP1), which are crucial regulators of protein synthesis and cell growth 8 .”
Therapeutic Targeting of Cellular Metabolism in Cells with Hyperactive mTORC1: A Paradigm Shift
Medvetz, D. A., Priolo, C., & Henske, E. P. (2014) · Molecular Cancer Research · doi:10.1158/1541-7786.mcr-14-0343 · Cited by 37
“Mol Cancer Res; 13(1) January 2015 Molecular Cancer Research 6”
BackgroundInfluentialVannicola, C., Tassi, L., Barba, C., Boniver, C., Cossu, M., de Curtis, M., Palma, L. D., D’Errico, I., Didato, G., Guerrini, R., et al. (2021) · Journal of the Neurological Sciences · doi:10.1016/j.jns.2021.117506 · Cited by 39
Polymorphic variants in TSC1 and TSC2 and their association with breast cancer phenotypes
Mehta, M. S., Vázquez, A., Kulkarni, D. A., Kerrigan, J. E., Atwal, G. S., Metsugi, S., Toppmeyer, D., Levine, A. J., & Hirshfield, K. M. (2010) · Breast Cancer Research and Treatment · doi:10.1007/s10549-010-1062-1 · Cited by 37
“TSC1 acts to stabilize TSC2, preventing its degradation and both function together as the TSC1/TSC2 heterodimer [8, 10].”
BackgroundRibosomal protein S 6 phosphorylation is controlled by TOR and modulated by PKA in C andida albicans
Chowdhury, T., & Köhler, J. R. (2015) · Molecular Microbiology · doi:10.1111/mmi.13130 · Cited by 37
“A major component of the mTOR pathway, S6K, phosphorylates ribosomal protein S6 during active growth (Hay and Sonenberg, 2004; Huang and Manning, 2008).”
BackgroundMozaffari, M., Hoogeveen-Westerveld, M., Kwiatkowski, D., Sampson, J., Ekong, R., Povey, S., den Dunnen, J. T., van den Ouweland, A., Halley, D., & Nellist, M. (2009) · BMC Medical Genetics · doi:10.1186/1471-2350-10-88 · Cited by 36
“Inactivation of the TSC1-TSC2 complex results in activation of mTOR and phosphorylation of the mTOR targets p70 S6 kinase (S6K), ribosomal protein S6 and 4EBP1 [15].”
Cheah, P.-S., Prabhakar, S., Yellen, D., Beauchamp, R. L., Zhang, X., Kasamatsu, S., Bronson, R. T., Thiele, E. A., Kwiatkowski, D. J., Stemmer-Rachamimov, A., et al. (2021) · Science Advances · doi:10.1126/sciadv.abb1703 · Cited by 38
“We felt it was also important to retain the hamartin-binding domain at the N terminus, as hamartin and tuberin function together as a complex with Tre2-Bub2-Cdc16 (TBC) 1 domain family, member 7 (TBC1D7) to accelerate guanosine triphosphate (GTP) to guanosine diphosphate conversion of Rheb-GTP (3, 22).”
InfluentialThe space between notes: emerging roles for translationally silent ribosomes
Smith, P. R., Pandit, S. C., Loerch, S., & Campbell, Z. T. (2022) · Trends in Biochemical Sciences · doi:10.1016/j.tibs.2022.02.003 · Cited by 35
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“Spontaneous or inherited mutations in any of these tumor-suppressor genes, which are found in over 85 % of patients with TSC, result in activation of the mammalian target of rapamycin complex 1 (mTORC1) and, consequently, in the formation of hamartomas in different organs [5, 7–11].”
BackgroundInhibitors of phosphatidylinositol-3-kinase in cancer therapy
Ihle, N., & Powis, G. (2010) · Molecular Aspects of Medicine · doi:10.1016/j.mam.2010.02.003 · Cited by 40
“The activation of Rheb allows mTor to be activated through association with raptor and other TORC1 complex members, stimulating TOR dependent mRNA translation through p70S6Kinase, and cap-dependent translation thorough inhibition of the eiF4e repressor, 4E-BP (Huang and Manning, 2008).”
BackgroundmTOR as a senescence manipulation target: A forked road
Saoudaoui, S., Bernard, M., Cardin, G. B., Malaquin, N., Christopoulos, A., & Rodier, F. (2021) · Advances in cancer research · doi:10.1016/bs.acr.2021.02.002 · Cited by 36
How can we turn the PI3K/AKT/mTOR pathway down? Insights into inhibition and treatment of cancer
Afify, S. M., Oo, A. K. K., Hassan, G., Seno, A., & Seno, M. (2021) · Expert Review of Anticancer Therapy · doi:10.1080/14737140.2021.1918001 · Cited by 36
“and invasion of prostate cancer cells [62,63].”
Effects of Mutations in TSC Genes on Neurodevelopment and Synaptic Transmission
Bassetti, D., Luhmann, H. J., & Kirischuk, S. (2021) · International Journal of Molecular Sciences · doi:10.3390/ijms22147273 · Cited by 40
“The complex itself is modulated by phosphorylation via, for example, Akt or AMPK (Figure 1, [3]).”
BackgroundFallah, A., & Wang, S. (2014) · Neuropsychiatric Disease and Treatment · doi:10.2147/ndt.s51789 · Cited by 36
Scheldeman, C., Mills, J. D., Siekierska, A., Serra, I., Copmans, D., Iyer, A. M., Whalley, B. J., Maes, J., Jansen, A., Lagae, L. G., et al. (2017) · Neurobiology of Disease · doi:10.1016/j.nbd.2017.09.004 · Cited by 36
“These genes are classified as tumor suppressor genes that encode hamartin and tuberin, respectively (Qin et al., 2016; Huang and Manning, 2008).”
BackgroundDunn, S., Eberlein, C., Yu, J., Gris‐Oliver, A., Ong, S. H., Yelland, U., Cureton, N., Staniszewska, A. D., McEwen, R. K., Fox, M., et al. (2022) · Oncogene · doi:10.1038/s41388-022-02482-9 · Cited by 37
“The TSC1-TSC2 complex is a critical negative regulator of mTORC1 signaling [36].”
BackgroundSivanandan, S., Leitmann, B., Lubeck, E., Sultan, M. M., Stanitsas, P., Ranu, N., Ewer, A., Mancuso, J. E., Phillips, Z. F., Kim, A. M., et al. (2025) · Nature Communications · doi:10.1038/s41467-025-66778-6 · Cited by 44
Bartolomé, A., Guillén, C., & Benito, M. (2010) · Endocrinology · doi:10.1210/en.2010-0048 · Cited by 35
Metadata
- Authors
- Huang, J., & Manning, B. D.
- Affiliations
- Harvard University (US)
- Venue
- Biochemical Journal
- Publisher
- Portland Press Ltd.
- Published
- 2008-05-14
- Volume
- 412
- Issue
- 2
- Pages
- 179-190
- ISSN
- 0264-6021 (ISSN-L)
- 1470-8728
- PMC
- PMC2735030
- OpenAlex
- W1993431258
- Cited by
- 1,237
- References
- 133
- Citations by year
- 2026: 26 · 2025: 58 · 2024: 53 · 2023: 62 · 2022: 77 · 2021: 83 · 2020: 77 · 2019: 69 · 2018: 74 · 2017: 79 · 2016: 68 · 2015: 82 · 2014: 70 · 2013: 72 · 2012: 73
- FWCI
- 5.48
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Biochemical Journal (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Cancer Institute (R01CA122617, P01CA120964)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
- Health Sciences › Medicine › Genetics (clinical) › Tuberous Sclerosis Complex Research
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hippo pathway signaling and YAP/TAZ
- Keywords
- TSC1/TSC2 complex, hamartin, tuberin, tuberous sclerosis complex, Rheb, GTPase-activating protein, mTORC1, cell growth regulation, signal transduction, phosphorylation, anabolic processes, tumor suppressor
- MeSH terms
- Ras Homolog Enriched in Brain Protein, Tuberous Sclerosis Complex 1 Protein, Tuberous Sclerosis Complex 2 Protein, Amino Acid Sequence, Animals, Cell Cycle, Humans, Insulin, Insulin-Like Growth Factor I, Molecular Sequence Data, Neuropeptides, Protein Kinases, Transcription Factors, Signal Transduction, Genes, Tumor Suppressor, Sequence Alignment, Ribosomal Protein S6 Kinases, Monomeric GTP-Binding Proteins, Tumor Suppressor Proteins, Intercellular Signaling Peptides and Proteins, Cell Growth Processes, TOR Serine-Threonine Kinases
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