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Journal of Cell Communication and Signaling

Joon-Ii Jun, Lester F Lau
The expression of Ccn2 (CTGF) has been linked to fibrosis in many tissues and pathologies, although its activities in fibroblastic cells and precise mechanism of action in fibrogenesis are still controversial. Here, we showed that CCN2 can induce cellular senescence in fibroblasts both in vitro and in vivo, whereupon senescent cells express an anti-fibrotic "senescence-associated secretory phenotype" (SASP) that includes upregulation of matrix metalloproteinases and downregulation of collagen. Mechanistically, CCN2 induces fibroblast senescence through integrin α6β1-mediated accumulation of reactive oxygen species, leading to activation of p53 and induction of p16(INK4a)...
October 18, 2016: Journal of Cell Communication and Signaling
Maryam Pilehchian Langroudi, Novin Nikbakhsh, Ali Akbar Samadani, Sadegh Fattahi, Hassan Taheri, Shahryar Shafaei, Galia Amirbozorgi, Reza Pilehchian Langroudi, Haleh Akhavan-Niaki
Gastric cancer is one of the major causes of death due to cancer in the world. It is a multi-factorial disease with epigenetic factors being also involved in its development. FAT4 is a tumor suppressor gene exerting an important role in cell adhesion. This study aimed at analyzing FAT4 expression and promoter methylation in gastric cancer. FAT4 expression was studied in 30 tumoral tissues and their non-tumoral counterparts using Taqman real time PCR method. Promoter methylation was assessed using bisulfite conversion method followed by sequencing...
October 1, 2016: Journal of Cell Communication and Signaling
Kai-Yu Sun, Tao Peng, Zhe Chen, Jing Huang, Xu-Hong Zhou
Through analysis of a reported microarray-based high-throughput examination, we found that miR-1275 was significantly down-regulated in nasopharyngeal carcinoma (NPC). While its role and mechanism participated in NPC progression are still little known. Here, we explored the effect of miR-1275 on the progression of NPC. Results demonstrated that miR-1275 was markedly down-regulated in NPC tissues and cell lines. MiR-1275 markedly repressed cell growth as confirmed by CCK8 and colony formation assay, via inhibition of HOXB5 in NPC cell lines...
September 20, 2016: Journal of Cell Communication and Signaling
K G F Gerritsen, N Bovenschen, T Q Nguyen, D Sprengers, M P Koeners, A N van Koppen, J A Joles, R Goldschmeding, R J Kok
CCN-2 (connective tissue growth factor; CTGF) is a key factor in fibrosis. Plasma CCN-2 has biomarker potential in numerous fibrotic disorders, but it is unknown which pathophysiological factors determine plasma CCN-2 levels. The proteolytic amino-terminal fragment of CCN-2 is primarily eliminated by the kidney. Here, we investigated elimination and distribution profiles of full length CCN-2 by intravenous administration of recombinant CCN-2 to rodents. After bolus injection in mice, we observed a large initial distribution volume (454 mL/kg) and a fast initial clearance (120 mL/kg/min)...
September 19, 2016: Journal of Cell Communication and Signaling
Oishi Chatterjee, Krutika Patil, Apeksha Sahu, Lathika Gopalakrishnan, Praseeda Mol, Jayshree Advani, Srabani Mukherjee, Rita Christopher, T S Keshava Prasad
Oxytocin, a nine amino acid long neuropeptide hormone, is synthesized in the hypothalamus and stored and released from the neural lobe of the pituitary gland. Although commonly known for its central role in the regulation of parturition and lactation, oxytocin signaling also plays a key role in modulating social behavior, evoking contentment, initiating maternal behavior, inducing trust, generosity and bonding in humans and animals. Oxytocin signaling can prove to be of great importance in therapeutics and drug targeting because of its diverse range of actions...
September 14, 2016: Journal of Cell Communication and Signaling
Chandran S Abhinand, Rajesh Raju, Sasikumar J Soumya, Prabha S Arya, Perumana R Sudhakaran
Vascular endothelial growth factor-A (VEGF-A) is essential for endothelial cell functions associated with angiogenesis. Signal transduction networks initiated by VEGFA/VEGFR2, the most prominent ligand-receptor complex in the VEGF system, leads to endothelial cell proliferation, migration, survival and new vessel formation involved in angiogenesis. Considering its biomedical importance, we have developed the first comprehensive map of endothelial cell-specific signaling events of VEGFA/VEGFR2 system pertaining to angiogenesis...
September 12, 2016: Journal of Cell Communication and Signaling
The Publisher
No abstract text is available yet for this article.
August 16, 2016: Journal of Cell Communication and Signaling
Bernard Perbal
No abstract text is available yet for this article.
July 29, 2016: Journal of Cell Communication and Signaling
Soujanya D Yelamanchi, Hitendra Singh Solanki, Aneesha Radhakrishnan, Lavanya Balakrishnan, Jayshree Advani, Remya Raja, Nandini A Sahasrabuddhe, Premendu Prakash Mathur, Pinaki Dutta, T S Keshava Prasad, Márta Korbonits, Aditi Chatterjee, Harsha Gowda, Kanchan Kumar Mukherjee
No abstract text is available yet for this article.
July 27, 2016: Journal of Cell Communication and Signaling
Inge Ubink, Elisha R Verhaar, Onno Kranenburg, Roel Goldschmeding
CCN2, also known as connective tissue growth factor (CTGF) is a transcriptional target of TGF-β signaling. Unlike its original name ("CTGF") suggested, CCN2 is not an actual growth factor but a matricellular protein that plays an important role in fibrosis, inflammation and connective tissue remodeling in a variety of diseases, including cancer. In pancreatic ductal adenocarcinoma, CCN2 signaling induces stromal infiltration and facilitates a strong tumor-stromal interaction. In many types of cancer, CCN2 overexpression has been associated with poor outcome...
September 2016: Journal of Cell Communication and Signaling
Annick Perbal, Bernard Perbal
The CCN family of proteins is composed of six members, which are now well recognized as major players in fundamental biological processes. The first three CCN proteins discovered were designated CYR61, CTGF, and NOV because of the context in which they were identified. Both CYR61 and CTGF were discovered in normal cells, whereas NOV was identified in tumors. Soon after their discovery, it was established that they shared important and unique structural features and distinct biological properties. Based on these structural considerations, the three proteins were proposed to belong to a family that was designated CCN by P...
September 2016: Journal of Cell Communication and Signaling
Sarangam Majumdar, Sukla Pal
Quorum sensing is the efficient mode of communication in the bacterial world. After a lot of advancements in the classical theory of quorum sensing few basic questions of quorum sensing still remain unanswered. The sufficient progresses in quantum biology demands to explain these questions from the quantum perspective as non trivial quantum effects already have manifested in various biological processes like photosynthesis, magneto-reception etc. Therefore, it's the time to review the bacterial communications from the quantum view point...
September 2016: Journal of Cell Communication and Signaling
Joshua X Wang, Mizuho Fukunaga-Kalabis, Meenhard Herlyn
In the vertebrate embryo, melanocytes arise from the neural crest, migrate to and colonize the basal layer within the skin and skin appendages. Post-migratory melanocytes are securely attached to the basement membrane, and their morphology, growth, adhesion, and migration are under control of neighboring keratinocytes. Melanoma is a malignant tumor originated from melanocytes or their progenitor cells. During melanocyte transformation and melanoma progression, melanocytes lose their interactions with keratinocytes, resulting in uncontrolled proliferation and invasion of the malignant cells...
September 2016: Journal of Cell Communication and Signaling
Sushanta K Banerjee, Gargi Maity, Inamul Haque, Arnab Ghosh, Sandipto Sarkar, Vijayalaxmi Gupta, Donald R Campbell, Daniel Von Hoff, Snigdha Banerjee
Decades of basic and translational studies have identified the mechanisms by which pancreatic cancer cells use molecular pathways to hijack the normal homeostasis of the pancreas, promoting pancreatic cancer initiation, progression, and metastasis, as well as drug resistance. These molecular pathways were explored to develop targeted therapies to prevent or cure this fatal disease. Regrettably, the studies found that majority of the molecular events that dictate carcinogenic growth in the pancreas are non-actionable (potential non-responder groups of targeted therapy)...
September 2016: Journal of Cell Communication and Signaling
Celina G Kleer
The tumor microenvironment has a powerful effect on the development and progression of human breast cancer, which may be used therapeutically. Despite efforts to understand the complex role of the tumor microenvironment in breast cancer development, the specific players and their contributions to tumorigenesis need further investigation. The CCN family of matricellular proteins comprises six members (CCN1-6; CYR61, CTGF, NOV, WISP1-3) with central roles in development, inflammation, and tissue repair. CCN proteins also exert functions during pathological processes including fibrosis and cancer by regulating extracellular signals in the cellular environment...
September 2016: Journal of Cell Communication and Signaling
Herman Yeger, Bernard Perbal
The CCN family of proteins consisting of CCN1 (Cyr61), CCN2 (CTGF), CCN3 (NOV), CCN4 (WISP-1), CCN5 (WISP-2) and CCN6 (WISP-3) are considered matricellular proteins operating essentially in the extracellular microenvironment between cells. Evidence has also been gradually building since their first discovery of additional intracellular roles although the major activity is triggered at the cell membrane. The proteins consist of 4 motifs, a signal peptide (for secretion} followed consecutively by the IGFBP, VWC, TSP1 and CT (C-terminal cysteine knot domain) motifs, which signify their potential binding partners and functional connections to a variety of key regulators of physiological processes...
September 2016: Journal of Cell Communication and Signaling
Bernard Perbal
In a recent manuscript, Goff and collaborators (Metzger et al. 2016) reported data arguing for the spread of contagious cancer cells among different species of shellfish. Although horizontal transmission of cancer cells has been observed in a few cases in higher organisms, it appears to be rather frequent among molluscs. Recent evidence supports the concept of inter-species horizontal infectious transmission of cancer cells both in molluscs but also in mammals, including humans.
September 2016: Journal of Cell Communication and Signaling
B Perbal
No abstract text is available yet for this article.
September 2016: Journal of Cell Communication and Signaling
Lisa Judith Crawford, Alexandra Elizabeth Irvine
Haematopoiesis is the term used to describe the production of blood cells. This is a tightly regulated hierarchical system in which mature circulating blood cells develop from a small population of haematopoietic stem (HSC) and progenitor cells within the microenvironment of the bone marrow. Molecular and genetic abnormalities arising in these stem cells lead to a block in the normal programme of proliferation and differentiation and result in the development of the blood cancers known as the leukaemias and lymphomas...
September 2016: Journal of Cell Communication and Signaling
Arvind Subramanian, Vijayalaxmi Gupta, Sandipto Sarkar, Gargi Maity, Snigdha Banerjee, Arnab Ghosh, LaCoiya Harris, Lane K Christenson, WeiTing Hung, Ajay Bansal, Sushanta K Banerjee
Exosomes, which act as biological cargo vessels, are cell-released, phospholipid-enclosed vesicles. In eukaryotic cells, exosomes carry and exchange biological materials or signals for the benefit or detriment to the cells. Thereby, we consider exosomes to be molecular Palkis (carriers). Although exosomes are currently one of the most popularly researched cellular entities, they have remained largely enigmatic and warrant continued investigation into their structure and functions. These membraned vesicles are between 30 and 150 nm in diameter and are actively secreted by all cell types...
September 2016: Journal of Cell Communication and Signaling
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