scholarly journals Directional Dependence of Cyclic Stretch-induced Cell Migration in Wound Healing Process of Monolayer Cells

2019 ◽  
Vol 8 (0) ◽  
pp. 163-169 ◽  
Author(s):  
Kazuaki Nagayama ◽  
Yuya Suzuki ◽  
Daisuke Fujiwara
2014 ◽  
Vol 10 (3) ◽  
pp. 417-428 ◽  
Author(s):  
Maria G. Roubelakis ◽  
Ourania Trohatou ◽  
Apostolos Roubelakis ◽  
Evgenia Mili ◽  
Ioannis Kalaitzopoulos ◽  
...  

2019 ◽  
Vol 27 (5) ◽  
pp. 1520-1538 ◽  
Author(s):  
Martina Balli ◽  
Francesca Vitali ◽  
Adrian Janiszewski ◽  
Ellen Caluwé ◽  
Alvaro Cortés-Calabuig ◽  
...  

Abstract Defective cell migration causes delayed wound healing (WH) and chronic skin lesions. Autologous micrograft (AMG) therapies have recently emerged as a new effective and affordable treatment able to improve wound healing capacity. However, the precise molecular mechanism through which AMG exhibits its beneficial effects remains unrevealed. Herein we show that AMG improves skin re-epithelialization by accelerating the migration of fibroblasts and keratinocytes. More specifically, AMG-treated wounds showed improvement of indispensable events associated with successful wound healing such as granulation tissue formation, organized collagen content, and newly formed blood vessels. We demonstrate that AMG is enriched with a pool of WH-associated growth factors that may provide the starting signal for a faster endogenous wound healing response. This work links the increased cell migration rate to the activation of the extracellular signal-regulated kinase (ERK) signaling pathway, which is followed by an increase in matrix metalloproteinase expression and their extracellular enzymatic activity. Overall we reveal the AMG-mediated wound healing transcriptional signature and shed light on the AMG molecular mechanism supporting its potential to trigger a highly improved wound healing process. In this way, we present a framework for future improvements in AMG therapy for skin tissue regeneration applications.


2019 ◽  
Author(s):  
Martina Balli ◽  
Francesca Vitali ◽  
Adrian Janiszewski ◽  
Ellen Caluwé ◽  
Alvaro Cortés-Calabuig ◽  
...  

AbstractDefective fibroblast migration causes delayed wound healing (WH) and chronic skin lesions. Autologous micrograft (AMG) therapies have recently emerged as a new effective treatment able to improve wound healing capacity. However, the molecular mechanisms connecting their beneficial outcomes with the wound healing process are still unrevealed. Here, we show that AMG modulates primary fibroblast migration and accelerates skin re-epithelialization without affecting cell proliferation. We demonstrate that AMG is enriched in a pool of WH-associated growth factors that may provide the initiation signal for a faster endogenous wound healing response. This, in turn leads to increased cell migration rate by elevating activity of extracellular signal-regulated kinase (ERK) pathway and subsequent activation of matrix metalloproteinase expression and their extracellular enzymatic activity. Moreover, AMG-treated wounds showed increased granulation tissue formation and organized collagen content. Overall, we shed light on AMG molecular mechanism supporting its potential to trigger a highly improved wound healing process.


2016 ◽  
Vol 22 (1) ◽  
pp. 36-43 ◽  
Author(s):  
Shang-Ying Wu ◽  
Yung-Shin Sun ◽  
Kuan-Chen Cheng ◽  
Kai-Yin Lo

Collective cell migration plays important roles in many physiological processes such as embryonic development, tissue repair, and angiogenesis. A “wound” occurs when epithelial cells are lost and/or damaged due to some external factors, and collective cell migration takes place in the following wound-healing process. To study this cellular behavior, various kinds of wound-healing assays are developed. In these assays, a “wound,” or a “cell-free region,” is created in a cell monolayer mechanically, chemically, optically, or electrically. These assays are useful tools in studying the effects of certain physical or chemical stimuli on the wound-healing process. Most of these methods have disadvantages such as creating wounds of different sizes or shapes, yielding batch-to-batch variation, and damaging the coating of the cell culture surface. In this study, we used ultraviolet (UV) lights to selectively kill cells and create a wound out of a cell monolayer. A comparison between the current assay and the traditional scratch assay was made, indicating that these two methods resulted in similar wound-healing rates. The advantages of this UV-created wound-healing assay include fast and easy procedure, high throughput, and no direct contact to cells.


2019 ◽  
Vol 2 (1) ◽  
pp. 14-17
Author(s):  
Nurul Aini Siagian ◽  
Syafira Nusaibah ◽  
Andayani Boang Manalu

Early mobilization includes factors that can affect the process of wound healing after surgery. Immediate mobilization in stages is very useful for the process of healing wounds and preventing infection and venous thrombosis. The purpose of this study was to determine whether there is a relationship between early mobilization and the process of healing wound post operative sectio caesarea at Sinar Husni General Hospital Medan Helvetia. The research design used was analytic survey with cross sectional approach. The sample in this study used the Consecutive Sampling method of data collection using a checklist sheet conducted on a sample of 19 respondents. The results of the study in this study are the majority of respondents who did early mobilization and who experienced rapid wound healing process as many as 4 people (21%) while the minority of respondents who did early mobilization and who experienced slow wound healing process were 1 person (5.3%). The majority of respondents who did not mobilize early and who experienced a slow wound healing process were 11 people (57.9%) and a minority who did not mobilize early and who experienced rapid healing as many as 4 people (21.1%). Statistical test results obtained p value = 0.046 <0.005. The conclusions of the results of this study indicate there is a relationship between early mobilization and the process of healing post operative sectio of caesarea. Suggestions The results of this study can be applied as a reference to improve nursing care services, especially in providing counseling and assistance to patients.


2017 ◽  
Vol 2 (1) ◽  
pp. 20-28
Author(s):  
Fitriani ◽  
Tenriwati

At present, the incidence of injuries in Indonesia is quite high, as seen from data on traffic accidents in the general public. There are several factors that affect wound healing, one of which is nutritional status. Based on the preliminary data retrieval conducted by researchers in the seruni surgery room in the last 1 month namely in March, it was found that the number of wounded patients was 109 patients, where the number of men was 78 (71.56%) while the number of women was 31 ( 28.44%) The purpose of this study was to determine the relationship between nutritional status and the wound healing process in RSUD. H. Andi. Sulthan Daeng Radja Kab. Bulukumba. This research uses the type of design of this research is quantitative research. This type of research uses analytic observational research with cross sectional approach. The sample of this study were 41 respondents taken by purposive sampling method. Data analysis in this study used the chi-square test (chi square test). The results of the analysis used the chi-square statistical test with a confidence level (α = 0.05). Based on the results of this test, the p value is 0.001, thus p <α (0.001 <0.05), then Ho is rejected and Ha is accepted. The conclusion of this study is that there is a relationship between nutritional status and the process of wound healing in RSUD. H. Andi. Sulthan Daeng Radja Kab. Bulukumba. Researchers suggest that this study be used as a material consideration in the fulfillment of nutrition in wound care patients in RSUD.H.A. Sulthan Daeng Radja Kab. Bulukumba and this research can be continued by conducting research related to the wound healing process and linking it with other variables.


2020 ◽  
Vol 26 (36) ◽  
pp. 4551-4568
Author(s):  
Mohammad Kashif Iqubal ◽  
Sadaf Saleem ◽  
Ashif Iqubal ◽  
Aiswarya Chaudhuri ◽  
Faheem Hyder Pottoo ◽  
...  

A wound refers to the epithelial loss, accompanied by loss of muscle fibers collagen, nerves and bone instigated by surgery, trauma, frictions or by heat. Process of wound healing is a compounded activity of recovering the functional integrity of the damaged tissues. This process is mediated by various cytokines and growth factors usually liberated at the wound site. A plethora of herbal and synthetic drugs, as well as photodynamic therapy, is available to facilitate the process of wound healing. Generally, the systems used for the management of wounds tend to act through covering the ruptured site, reduce pain, inflammation, and prevent the invasion and growth of microorganisms. The available systems are, though, enough to meet these requirements, but the involvement of nanotechnology can ameliorate the performance of these protective coverings. In recent years, nano-based formulations have gained immense popularity among researchers for the wound healing process due to the enhanced benefits they offer over the conventional preparations. Hereupon, this review aims to cover the entire roadmap of wound healing, beginning from the molecular factors involved in the process, the various synthetic and herbal agents, and combination therapy available for the treatment and the current nano-based systems available for delivery through the topical route for wound healing.


Author(s):  
Manoj Kumar ◽  
Amareshappa . ◽  
Anjali Bharadwaj ◽  
Shailaja S. V.

Wound healing has been the burning problem in a surgical practice because of a remarkable increase in the number of traumatic cases. A wound causes a number of changes in the body that can affect the healing process, including changes in energy, protein, carbohydrate, fat, vitamin and mineral metabolism. Various Ayurveda literatures, particularly, Sushruta Samhita, which is said to be an ancient textbook of surgery in Ayurveda, has mentioned about the diet for the person suffering from the wound, and the author said that diet plays a very important role in the wound healing process. Sushruta - The father of surgery has scientifically classified it in a systemic manner, whose wealth of clinical material and the principles of management are valid even today. Shalya Tantra (surgical branch in Ayurveda Science) is one of the important branch of Ayurveda, in which surgical and para-surgical techniques has described for management of various diseases. Vrana is the most important and widely described chapter of Shalya Tantra. Vrana (wound) is one of them, which have been managed by human being from starting of civilization. Under the circumstances, the first thing which the men came across was the injury from different sources which caused him the Vrana. Vrana is seen as debilitating and scaring disorder, usually seen affecting the human being at any age. Well balanced nutrition plays an essential role in the wound healing.


2017 ◽  
Vol 11 (1) ◽  
pp. 109
Author(s):  
Reni Heryani ◽  
Ardenny Denny

<p align="center"><strong>A</strong><strong>BSTRAK</strong><strong></strong></p><p align="center"> </p><p>Salah satu tujuan pembangunan era <em>Millenium Development goals (MDG’s)</em> 2015 adalah perbaikan kesehatan maternal. Salah satu cara di dalam persalinan atau mengeluarkan bayi secara patologis yaitu dengan sectio caesarea. Menurut  statistik 3.509 kasus sectio caesarea, indikasi terbanyak adalah disproporsi cephalo pelvik (21%), sedangkan indikasi lain adalah gawat janin (14%), plasenta previa (11%), pernah sectio caesarea (11%), incoordinate uterine action (9%), preeklamsi dan hipertensi (7%). Penelitian ini menggunakan desain penelitian <em>Quasy Experiment</em> dengan <em>post test only with control.</em> Hasil penelitian menunjukkan bahwa umumnya responden memiliki umur tidak berisiko terhadap tindakan operasi yati sebanyak 15 orang (75%), sebagian responden pertama kali dilakukan operasi caesarea yaitu sebanyak 10 orang (50,0%), sebagian responden mengalami penyembuhan luka yang normal yaitu sebanyak 13 orang (65,0%), dan sebagian responden responden melakukan mobilisasi dini yaitu sebanyak 14  orang (70,0%). Secara statistik terdapat pengaruh mobilisasi dini terhadap penyembuhan luka post sectio caesarea di RSUD Arifin Achmad Pekanbaru (p value = 0.007). Disarankan bagi respnden dapat meningkatkan kesadarannya dalam meningkatkan derajat kesehatan melalui latihan mobilisasi dini untuk mempercepat proses penyembuhan luka akibat operasi.</p><p><em> </em></p><p><em>Kata Kunci      : </em><em>sectio </em><em>caesarea, mobilisasi, penyembuhan luka</em></p><p><em> </em></p><p align="center"><strong><em>ABSTRACT</em></strong></p><p><em> </em></p><p><em>One of the goals of development era of Millennium Development Goals (MDG's) in 2015 is the improvement of maternal health.</em><em> </em><em>One way in the delivery or the baby out with the pathological ie sectio caesarea. According to 3509 statistics compiled case sectio caesarea, an indication of cephalo pelvic disproportion is the highest (21%), while the other is an indication of fetal distress (14%), placenta previa (11%), never sectio caesarea (11%), incoordinate uterine action (9%), preeclampsia and hypertension (7%).</em><em> </em><em>This study research design quasy Experiment with post test only with control. The results showed that respondents generally have a lifespan of no risk for surgery yati many as 15 people (75%), the majority of respondents were first performed caesarea operation as many as 10 people (50.0%), the majority of respondents experienced a normal wound healing as many as 13 people (65.0%), and the majority of respondents respondents did early mobilization as many as 14 people (70.0%). There is a statistically significant relationship between early mobilization on wound healing post sectio caesarea (p value = 0.007). Suggested for respnden can increase awareness in improving health status through early mobilization exercises to accelerate the wound healing process as a result of the operation.</em></p><p><em> </em></p><em>Keywords: sectio caesarea, mobilization, wound healing</em>


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