Abstract：
:Insulin-like growth factor II (IGF-II) belongs to the insulin family of peptides and acts as a growth factor in many fetal tissues and tumors. The gene expression of IGF-II is initiated at three different promoters which gives rise to multiple transcripts. In a human rhabdomyosarcoma cell line IN 157 IGF-II mRNAs of 6.0-kb, 4.8-kb, and 4.2-kb are present. Fractionation of cellular extracts on sucrose gradients and Northern blot analysis showed that only the 4.8-kb mRNA was associated with polysomes, whereas the other transcripts cosedimented with monosomal particles. This suggests that only the 4.8-kb mRNA is translated to IGF-II. The cell line secretes two forms of immunoreactive and bioactive IGF-II to the medium of molecular size 10 kd and 7.5 kd which may be involved in autocrine control of cell growth. IGF-II binds to two receptors on the surface of many cell types: the IGF-I receptor and the mannose-6-phosphate (Man-6-P)/IGF-II receptor. There is consensus that the cellular effects of IGF-II are mediated by the IGF-I receptor via activation of its intrinsic tyrosine kinase. The Man-6-P/IGF-II receptor is involved in endocytosis of lysosomal enzymes and IGF-II. In selected cell types, however, Man-6-P induces cellular responses. We have studied rat brain neuronal precursor cells where Man-6-P acted as a mitogen suggesting that phosphomannosylated proteins may act as growth factors via the Man-6-P/IGF-II receptor. In conclusion, the gene expression and mechanism of action of IGF-II is very complex suggesting that its biological actions can be regulated at different levels including the transcription, translation, posttranslational processing, receptor binding and intracellular signalling.
journal_name
Adv Exp Med Bioljournal_title
Advances in experimental medicine and biologyauthors
Gammeltoft S,Christiansen J,Nielsen FC,Verland Sdoi
10.1007/978-1-4684-5949-4_4subject
Has Abstractpub_date
1991-01-01 00:00:00pages
31-44eissn
0065-2598issn
2214-8019journal_volume
293pub_type
杂志文章,评审abstract：:Intravitreal (IVT) injection of ophthalmic therapeutics is the most widely used drug delivery route to the posterior segment of the eye. We employed this method to deliver our inorganic, catalytic antioxidant, cerium oxide nanoparticles (CeNPs), to rodent models of retinal degeneration. A single IVT of CeNPs delays di...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-030-27378-1_21
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abstract：:Extracellular vesicles (EVs) are membranous structures released by cells, including those of the retinal pigment epithelium (RPE) and photoreceptors. The cargo of EVs includes genetic material and proteins, making these vesicles essential in cell communication. Among the genetic materials, we find a large number of mi...
journal_title：Advances in experimental medicine and biology
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abstract：:Pre-eclampsia is a pregnancy-specific hypertensive disorder that affects 2-8 % of pregnancies. This disorder can lead to seizure, multi-organ failure and maternal death. The best approach to prevent pre-eclampsia-associated adverse outcomes is to be able to prevent pre-eclampsia as early as possible. Unfortunately, cu...
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abstract：:The virus-derived protein Apoptin has the ability to induce p53-independent apoptosis in a variety of human cancer cells while leaving normal cells unharmed. It thus represents a potential anti-cancer therapeutic agent of the future but a proper understanding of Apoptin-induced signalling events is necessary prior to ...
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pub_type： 杂志文章
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journal_title：Advances in experimental medicine and biology
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doi：10.1007/5584_2015_187
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-41596-9_5
更新日期：2020-01-01 00:00:00
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4613-0399-2_9
更新日期：1996-01-01 00:00:00
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-8914-9_30
更新日期：1979-01-01 00:00:00
abstract：:Non-coding RNAs (ncRNAs) are untranslated RNA molecules that function to regulate the expression of numerous genes and associated biochemical pathways and cellular functions. NcRNAs include small interfering RNAs (siRNAs), microRNAs (miRNAs), PIWI-interacting RNAs (piRNAs), small nucleolar RNAs (snoRNAs) and long non-...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-94-017-7417-8_7
更新日期：2016-01-01 00:00:00
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4614-1222-9_11
更新日期：2012-01-01 00:00:00
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4899-1016-5_15
更新日期：1995-01-01 00:00:00
abstract：:The Wnt signaling pathways are well known for having several pivotal roles during embryonic development. However, the same developmental signaling pathways also present key roles in cancer initiation and progression. In this chapter, several issues regarding the roles of both canonical and non-canonical Wnt signaling ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-34025-4_10
更新日期：2020-01-01 00:00:00
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-50044-7_8
更新日期：2017-01-01 00:00:00
abstract：:Aqueous dispersions of pure gangliosides contain micelles of these compounds. In this dispersion state, the rates of hydrolysis of the neuraminyl residues by bacterial neuraminidases are slowest. Incorporation of gangliosides into mixed dispersion with other lipids or into mixed micelles with bile salts considerably i...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-7844-0_13
更新日期：1980-01-01 00:00:00
abstract：:Cytogenetic discoveries of balanced translocations in soft tissue tumors have opened the way to molecular genetic definition of these translocations as gene fusions from the late 1980s. Many sarcomas are known to have such fusions, and the demonstration of the fusion transcripts in tumor tissue is of great value in sp...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4020-5133-3_10
更新日期：2006-01-01 00:00:00
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4757-9182-2_85
更新日期：1993-01-01 00:00:00
abstract：:HSP-1/2 and PDC-109 belong to a family of fibronectin type II proteins, present in high concentrations in bovine and equine seminal plasma, respectively. These proteins act as extracellular small heat shock proteins and protect target/client proteins against various kinds of stress. They also exhibit characteristic bi...
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更新日期：2018-01-01 00:00:00
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-57616-5_12
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journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-67144-4_28
更新日期：2017-01-01 00:00:00
abstract：:It has long been known that endogenous pyrogen, released as a result of injection of typhoid vaccine or in response to infection, produces fever and increases ACTH secretion. Recent studies have indicated that endogenous pyrogen is, at least in part, IL-1. This monokine has now been shown to activate the release of AC...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4684-5799-5_20
更新日期：1990-01-01 00:00:00
abstract：:The role of prolactin and of estradiol and progesterone in the control of the biosynthetic and secretory activity of TIDA neurons has been investigated in the following animal models: young female rats, aged female rats, and young male rats. The indices of TIDA neuronal function employed were a) mass of TH in neurites...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4684-5799-5_1
更新日期：1990-01-01 00:00:00
abstract：:This review covers recent advances in a variety of dyskinesias. Introduction of new drugs for the treatment of myoclonus and sensory biofeedback therapy for focal dystonia are expanding our concepts of these types of movement disorders. Progress in the treatment of action myoclonus is especially noteworthy and has led...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-2511-6_7
更新日期：1977-01-01 00:00:00
abstract：:Retinoblastoma (Rb) is a malignant tumor that originates from developing retina. Diagnosis based on clinical signs and symptoms and is usually made in children under the age of five years. Mutations in both alleles of the RB1 gene are a prerequisite for this tumor to develop. In most patients with sporadic unilateral ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4419-6448-9_21
更新日期：2010-01-01 00:00:00
abstract：:The adverse effects of trace metals, heat, steam and other conditions encountered in food processing relate to the acceleration of development of rancidity. Measures to retard oxidation of lipids, vitamins, pigments and proteins include elimination of prooxidants, removal of oxygen and use of blends of inhibitors form...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4899-1925-0_16
更新日期：1998-01-01 00:00:00
abstract：:Connexin 43 (Cx43) is the major connexin protein in ventricular cardiomyocytes. Six Cx43 proteins assemble into so-called hemichannels at the sarcolemma and opposing hemichannels form gap junctions, which allow the passage of small molecules and electrical current flow between adjacent cells. Apart from its localizati...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-55330-6_12
更新日期：2017-01-01 00:00:00
abstract：:Savinase and Esperase (EC. 3.4.21.14) are secreted by the alkalophilic bacterium Bacillus lentus and are representatives of that subgroup of subtilisin enzymes with maximum stability in the range of pH 7 to 10 and high activity in the range of pH 8 to 12. The crystal structures of native Savinase and diisopropyl fluor...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4613-0319-0_7
更新日期：1996-01-01 00:00:00
abstract：:Leukocyte migration is essential for exerting self-defense mechanisms. During the extravasation process, leukocytes transmigrate through the endothelial lining and the subendothelial basement membrane. Accumulating evidence supports the involvement of heparanase in this process. Altered cellular distribution resulting...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-34521-1_16
更新日期：2020-01-01 00:00:00
abstract：:Because homeobox-containing genes play a major role in embryogenesis and tissue identity in Drosophila and because similar genes encode tissue-specific transcription factors in mammalian cells, we hypothesized that homeobox genes might plan a role in hematopoietic differentiation and lineage commitment. We therefore s...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4613-0623-8_22
更新日期：1989-01-01 00:00:00
