Breaking News
February 19, 2018 - Researchers uncover how excess calcium may influence development of Parkinson’s disease
February 19, 2018 - Psoriasis drug also effective at reducing aortic inflammation
February 19, 2018 - Excess emissions can make serious contributions to air pollution, study shows
February 19, 2018 - Diabetes Drugs Differ on HF; School-Based Obesity Program Flop; Plaque Type in ACS
February 19, 2018 - Surgical infections linked to drug-resistant bugs, study suggests
February 19, 2018 - Poor awareness may hinder a child’s early dental care
February 19, 2018 - FDA Approves Apalutamide (Erleada) to Help Curb a Tough-to-Treat Prostate Cancer
February 19, 2018 - Educational Tool Boosts Cervical Length Screening
February 19, 2018 - Spider’s web inspires removable implant that may control type 1 diabetes
February 19, 2018 - University Hospital of Santiago de Compostela participates in large pancreatic cancer study
February 19, 2018 - New blood test shows promise to revolutionize diagnosis of tick-borne diseases
February 19, 2018 - Report: Use, Not Price, Drives State Health Costs
February 19, 2018 - Emergency services crews often unprepared for diabetic crises
February 19, 2018 - Scientists in Sweden create DNA nanowires that offer hope for treatment of diseases
February 19, 2018 - ID Break: Clean Hands, Fewer Abx; $11 Million HIV Cure?; MenB Vax for Kids
February 19, 2018 - Patient exposure to X-rays depends on how dentists are paid
February 19, 2018 - Study reveals parents’ views toward children’s tanning bed use
February 19, 2018 - Shot may help reduce risk of shingles
February 19, 2018 - FDA approves first treatment to reduce risk of NSCLC progression
February 19, 2018 - FDA Expands Approval of Imfinzi (durvalumab) to Reduce the Risk of Non-Small Cell Lung Cancer Progressing
February 19, 2018 - D.C. Week: Congress Passes Spending Bill
February 19, 2018 - Heart-muscle patches made with human cells improve heart attack recovery
February 19, 2018 - FDA Approves First Blood Test to Detect Concussions
February 19, 2018 - Survival Bump in Bladder Cancer with Keytruda
February 18, 2018 - Scientists describe the mechanism of heart regeneration in the zebrafish
February 18, 2018 - Scientists uncover the structure of microtubule motor proteins
February 18, 2018 - Light-activated cancer drugs without toxic side effects are closer to becoming reality
February 18, 2018 - Pioneering research could provide novel insight into how genomic information is read
February 18, 2018 - Pearls From: David Putrino, PhD
February 18, 2018 - Researchers uncover how cancer stem cells drive triple-negative breast cancer
February 18, 2018 - Morning Break: Anti-Anti-Vaxxers; Private Piercings Prohibited; A Case for Pelvic Massage
February 18, 2018 - Lower-dose radiation effective, safe for HPV+ head and neck cancer after induction chemo
February 18, 2018 - Specialist residential service for adults with autism opens in Swansea
February 18, 2018 - FDA Moves to Limit Loperamide Doses per Package
February 18, 2018 - Alcohol use disorder – Genetics Home Reference
February 18, 2018 - Autism might be better detected using new two-minute questionnaire
February 18, 2018 - Hand hygiene-intervention practices may reduce risk of infection among nursing home patients
February 18, 2018 - Researchers develop most sophisticated mini-livers to date
February 18, 2018 - Obamacare Helped More Young Women Get Prenatal Care: Study
February 18, 2018 - School-Based Program Fails to Dent Kids’ Obesity
February 18, 2018 - Research compares neural activity in children with and without autism spectrum disorder
February 18, 2018 - Poor fitness levels increase the risk dementia, concludes study
February 18, 2018 - Risk Score May Reveal if Kids are Victims of Ill-Treatment
February 18, 2018 - Adding Folic Acid to Corn Masa Flour May Prevent Birth Defects
February 18, 2018 - Acute treatment suppresses posttraumatic arthritis in ankle injury
February 18, 2018 - A Role for Budesonide in Autoimmune Hepatitis?
February 18, 2018 - Lupus patients exhibit altered cell proteins, a discovery with potential implications for diagnostics
February 18, 2018 - Muscle plays vital role in regulating heat loss from the hands
February 18, 2018 - High-tech brain scans can provide new way to define intelligence
February 18, 2018 - Study reveals the association between ultra-processed foods and cancer
February 18, 2018 - Prescription Opioid Use Tied to Higher Pneumonia Risk
February 18, 2018 - A non-invasive method to detect Alzheimer’s disease
February 18, 2018 - Deletion of specific enzyme leads to improvement in memory and cognitive functions
February 18, 2018 - Amyloid protein may be transmitted through neurosurgical instruments, study suggests
February 18, 2018 - Electric brain signals of males and females show differences
February 18, 2018 - American Heart Association commends McDonald’s for offering healthier menu in kids’ meals
February 18, 2018 - Parents Find Kids’ Weight Report Cards Hard to Swallow
February 18, 2018 - Does a Financial Conflict of Interest Ever Expire?
February 18, 2018 - Exercise can improve Alzheimer’s symptoms
February 18, 2018 - Scientists develop green chemistry method to improve pharmaceutical manufacturing efficiency
February 17, 2018 - ‘A Time Clock to a Tissue Clock’ for Acute Stroke Care
February 17, 2018 - Cancer Care Gets Personal | NIH News in Health
February 17, 2018 - Do more youth use or do youth use more?
February 17, 2018 - Eating faster linked to obesity
February 17, 2018 - Who’s Still Smoking? ACS Report Highlights Most Vulnerable Adults
February 17, 2018 - Study of smoking and genetics illuminates complexities of blood pressure
February 17, 2018 - Study reveals new link between bone cells and blood glucose level
February 17, 2018 - Children with reading challenges may have lower than expected binocular vision test results
February 17, 2018 - Mass Shootings Trigger Change for Emergency Medicine
February 17, 2018 - ECMO helps revive woman thought to be drowned
February 17, 2018 - Learning stress-reducing techniques may benefit people with epilepsy
February 17, 2018 - Shedding Pounds Before Weight-Loss Surgery a Smart Move
February 17, 2018 - FDA Approves New Cystic Fibrosis Drug Combo
February 17, 2018 - Augmented Reality helps surgeons to ‘see through’ tissue and reconnect blood vessels
February 17, 2018 - Emotional state affects operation of the entire brain instead of being restricted to specific regions
February 17, 2018 - Apalutamide Slows Metastasis in Prostate Cancer
February 17, 2018 - Kids’ well visits linked to lower appendicitis complications
February 17, 2018 - New NK cell-based immunotherapy effective against several types of leukemia
February 17, 2018 - Producing Super-Swelled Lyotropic Crystals for Drug Development
February 17, 2018 - Pfizer Receives Breakthrough Therapy Designation from FDA for PF-04965842, an oral JAK1 Inhibitor, for the Treatment of Patients with Moderate-to-Severe Atopic Dermatitis
Researchers find new way to accelerate wound healing

Researchers find new way to accelerate wound healing

image_pdfDownload PDFimage_print

Researchers at Uppsala University and SLU have found a new way of accelerating wound healing. The technology and the mode of action method published in the highly ranked journal PNAS involves using lactic acid bacteria as vectors to produce and deliver a human chemokine on site in the wounds. The research group is the first in the world to have developed the concept for topical use and the technology could turn out to be disruptive to the field of biologic drugs.

Treatment of large and chronic wounds are a high cost burden to the health care system since effective tools to accelerate healing are lacking. Wound care is today limited to mechanical debridement, use of different dressings and significant amounts of antibiotics preventing or treating wound infections. With the aging population, occurrence of chronic diseases such as diabetes and the alarming global spread of antibiotic resistance, a treatment that kick-starts and accelerates wound healing will have a significant impact. There have been many attempts to solve the problem of chronic wounds that have failed. Drug candidates currently in late stage clinical trials comprise of growth factors, which are traditional protein-based biological drugs associated with high costs, and some trials have been prematurely terminated.

“We have developed a drug candidate, a next-generation biologic medical product, and are now publishing the fantastic results from the preclinical part where wound healing was strongly accelerated in mice,” says Mia Phillipson, Professor at the Department of Medical Cell Biology, Division of Integrative Physiology, Uppsala University.

The acceleration of the healing process occurs due to changes in the microenvironment in the wound, which change the behavior of specific immune cells. With the newly developed technology, the researchers can increase the level of a chemokine, CXCL12, for a sufficient time period through continuous delivery directly to the wound surface. In addition, bioavailability of CXCL12 is synergistically increased within the wound as the bacterial produced lactic acid causes a slight pH drop that inhibits degradation.

“The chemokine, CXCL12, is endogenously upregulated in injured tissue and by increasing the levels further, more immune cells are recruited and are more specialized to heal the wound, which accelerates the whole process,” says Professor Phillipson.

The potent effect on acceleration of wound healing is demonstrated in healthy mice but also in two models of diabetes, one model of peripheral ischemia as well as in a model using human skin biopsies.

There were clear differences in the composition of immune cells in the wounds and the immune cells present produced higher levels of TGFβ at earlier time points. The treatment was local without systemic exposure.

“This is very exciting from a health care perspective. We have a technology that works and now understand the mechanism behind it, how it accelerates wound healing. The next step is a study in a pig model,” says Professor Phillipson.

Tagged with:

About author

Related Articles