A concise yet informative stroll through matrix metalloproteinases and TIMPs

2000 ◽  
Vol 113 (19) ◽  
pp. 3355-3356
Author(s):  
S.D. Shapiro

Matrix Metalloproteinases and TIMPs by J. Frederick Woessner and Hideaki Nagase Oxford University Press (2000) pp. 223. ISBN 0–19-850268-0 35.00 Ever since Gross discovered that collagenase was responsible for resorption of the tadpole tail, there has been a small group of outstanding scientists that have dedicated their careers to the study of matrix metalloproteinases (MMPs). The family of MMPs has now grown to over 20, and they have been implicated in multiple biological processes drawing the attention of scientists of many disciplines. Two leaders in the field who have ushered in the modern era of MMP biology are Fred Woessner and Hideake Nagase and they share their expertise in Matrix Metalloproteinases and TIMPs. In a concise, yet thorough manner, these authors provide the basic biochemical and biological basis for the study of MMPs. This information, laced with a strong sense of historical perspective, is conveyed in the same interesting manner in which they educated this reviewer and many others over late night scotch at MMP Gordon Conferences. For the interested novice, one will come away no longer needing a score card to keep track of MMP-1 through MMP-22 (perhaps more by now). One will understand which cells produce which MMPs and TIMPs in response to which stimuli. The reader will understand the multiple levels of regulation of MMP activity through gene transcription, proenzyme activation, and inhibition by TIMPs. The book is filled with readable tables depicting important concepts in classification, evolution, and substrate specificity. The authors provide extensive key references for further reading as only they can. The only area not extensively covered is the rapidly emerging in vivo function of MMPs that comes from transgenic and gene targeted mice and animal models. Perhaps this will be the sequel to this primer. As the biological role of these enzymes expands and it becomes more difficult for scientists to ignore MMPs, this book provides a meaningful and painless way to become fluent in the field. Upon completion of the text, readers will feel comfortable incorporating MMPs into their research endeavors. Hopefully this work will spark investigators to ask how these enzymes relate to one's own research interests thus broadening our general biological knowledge.

1996 ◽  
Vol 79 (3) ◽  
pp. 541-550 ◽  
Author(s):  
Bradley H. Strauss ◽  
Ranga Robinson ◽  
Wayne B. Batchelor ◽  
Robert J. Chisholm ◽  
Grama Ravi ◽  
...  

2020 ◽  
Vol 21 (21) ◽  
pp. 8042
Author(s):  
Fran Quilty ◽  
Anne-Marie Byrne ◽  
John Aird ◽  
Sheeren El Mashad ◽  
Adolfo Parra-Blanco ◽  
...  

Bile acids (BAs) have been implicated in the development of oesophagitis, Barrett’s oesophagus and oesophageal adenocarcinoma (OAC). However, whether BAs promote cancer invasiveness has not been elucidated. We evaluated the role of BAs, in particular deoxycholic acid (DCA), in OAC invasion. Migration and invasiveness in untreated and BA-treated oesophageal SKGT-4 cancer cells were evaluated. Activity and expression of different matrix metalloproteinases (MMPs) were determined by zymography, ELISA, PCR and Western blot. Finally, human OAC tissues were stained for MMP-10 by immunohistochemistry. It was found that SKGT-4 cells incubated with low concentrations of DCA had a significant increase in invasion. In addition, MMP-10 mRNA and protein expression were also increased in the presence of DCA. MMP-10 was found to be highly expressed both in-vitro and in-vivo in neoplastic OAC cells relative to non-neoplastic squamous epithelial cells. Our results show that DCA promotes OAC invasion and MMP-10 overexpression. This study will advance our understanding of the pathophysiological mechanisms involved in human OAC and shows promise for the development of new therapeutic strategies.


Author(s):  
M. Atho Mudzhar

The interest in the role of family in social life in this modern era is growing stronger. On the one hand, this is the result of the declining degree of cohesiveness and disorientation of the family due to industrialization and individualization. On the other hand, it is the effect of the increasing expectation of society toward family institution as the result of the failure of the institutions outside family circles to implant and defend some values in life. This article is trying to see how a family can play a role in building national character, viewed especially from Islamicperspectives. In a specific way, this article shows how Islamic teachings give guidance concerning matters relating to the functions of the family.


2016 ◽  
Vol 72 (1) ◽  
Author(s):  
Desmond Mathye ◽  
Carina Eksteen

Purpose: To investigate the role that rehabilitation professionals play in the rehabilitation of children with disabilities in the rural and under-resourced community of Giyani in South Africa.Method: A qualitative, exploratory and descriptive approach was used. Semi-structured face-to-face interviews were used to collect data from a convenient sample of eight rehabilitation professionals. Data were transcribed verbatim by two trained students and verified by the main researcher. An inductive approach to qualitative data analysis was used. In vivo and open coding were used to generate codes.Results: Analysis of data resulted in 21 codes, 9 subcategories, 5 categories and 1 theme. The role of rehabilitation professionals was described in terms of the five categories which are to examine newborn babies and children at risk, support caregivers of children with disabilities, impart skills training for caregivers of children with disabilities, rehabilitate children with disabilities and conduct follow-ups in communities where the children with disabilities reside.Conclusion: The role that rehabilitation professionals play in the rural and under-resourced community of Giyani in South Africa is similar to the role played in high-income countries. The role that rehabilitation professionals play is not only focused on the child but also on the family.


2001 ◽  
Vol 183 (12) ◽  
pp. 3556-3563 ◽  
Author(s):  
Gerhard Heusipp ◽  
Glenn M. Young ◽  
Virginia L. Miller

ABSTRACT The role of proteases in pathogenesis is well established for several microorganisms but has not been described for Yersinia enterocolitica. Previously, we identified a gene,hreP, which showed significant similarity to proteases in a screen for chromosomal genes of Y. enterocoliticathat were exclusively expressed during an infection of mice. We cloned this gene by chromosome capture and subsequently determined its nucleotide sequence. Like inv, the gene encoding the invasin protein of Y. enterocolitica,hreP is located in a cluster of flagellum biosynthesis and chemotaxis genes. The genomic organization of this chromosomal region is different in Escherichia coli, Salmonella, andYersinia pestis than in Y. enterocolitica. Analysis of the distribution ofhreP between different Yersinia isolates and the relatively low G+C content of the gene suggests acquisition by horizontal gene transfer. Sequence analysis also revealed that HreP belongs to a family of eukaryotic subtilisin/kexin-like proteases. Together with the calcium-dependent protease PrcA of Anabaena variabilis, HreP forms a new subfamily of bacterial subtilisin/kexin-like proteases which might have originated from a common eukaryotic ancestor. Like other proteases of this family, HreP is expressed with an N-terminal prosequence. Expression of an HreP-His6 tag fusion protein in E. coli revealed that HreP undergoes autocatalytic processing at a consensus cleavage site of subtilisin/kexin-like proteases, thereby releasing the proprotein.


2021 ◽  
Author(s):  
Wina Paembonan
Keyword(s):  

Abstract: In the midst of the development of the times, including the lives of children, where they live in this modern era, everything is very easy for them to access, which then if not given special attention can threaten their lives, including in terms of their spirituality. Therefore, the role of the Church and the Family is very much needed in the process of growing children's faith in the midst of the times


2004 ◽  
Vol 15 (8) ◽  
pp. 3530-3541 ◽  
Author(s):  
Andrew A. Peden ◽  
Eric Schonteich ◽  
John Chun ◽  
Jagath R. Junutula ◽  
Richard H. Scheller ◽  
...  

Rab 11 GTPase is an important regulator of endocytic membrane traffic. Recently, we and others have identified a novel family of Rab11 binding proteins, known as Rab11-family interacting proteins (FIPs). One of the family members, Rab coupling protein (RCP), was identified as a protein binding to both Rab4 and Rab11 GTPases. RCP was therefore suggested to serve a dual function as Rab4 and Rab11 binding protein. In this study, we characterized the cellular functions of RCP and mapped its interactions with Rab4 and Rab11. Our data show that RCP interacts only weakly with Rab4 in vitro and does not play the role of coupling Rab11 and Rab4 in vivo. Furthermore, our data indicate that the RCP–Rab11 complex regulates the sorting of transferrin receptors from the degradative to the recycling pathway. We therefore propose that RCP functions primarily as a Rab11 binding protein that regulates protein sorting in tubular endosomes.


Author(s):  
Evgeniy Borodin

A search was carried out for potential ligands to TRPM8 - a representative of the family of cationic channels with a transient receptor potential involved in the development of bronchial hypersensitivity and the occurrence of bronchospasm in response to low temperatures. We used a structural design and molecular docking using the autodock software package (http://autodock.scripps.edu/), which allows automated testing of many potential ligands for TRPM8. Docking was carried out with tyrosine 745 (Y745) amino acid residue as a critical residue for channel sensitivity to menthol, a classic TRPM8 agonist. The selection of potential candidates for the role of drugs intended for the treatment of bronchial cold hyperreactivity using in silico methods can be supplemented by testing their biological activity in vitro experiments with cell and tissue cultures and in vivo with experimental animals.


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