Microneedle-array patches loaded with dual mineralized protein/peptide particles for type 2 diabetes therapy DOI Creative Commons
Wei Chen, Rui Tian,

Can Xu

и другие.

Nature Communications, Год журнала: 2017, Номер 8(1)

Опубликована: Ноя. 20, 2017

Abstract The delivery of therapeutic peptides for diabetes therapy is compromised by short half-lives drugs with the consequent need multiple daily injections that reduce patient compliance and increase treatment cost. In this study, we demonstrate a smart exendin-4 (Ex4) device based on microneedle (MN)-array patches integrated dual mineralized particles separately containing Ex4 glucose oxidase (GOx). particle-based system can specifically release while immobilizing GOx as result differential response to microenvironment induced biological stimuli. manner, enables glucose-responsive closed-loop significantly improve performance. Moreover, integration enhance mechanical strength alginate-based MN crosslinking facilitate skin penetration, thus supporting painless non-invasive transdermal administration. We believe holds great promise type 2 providing safe, long-term, on-demand therapy.

Язык: Английский

The Role of Macrophages in Acute and Chronic Wound Healing and Interventions to Promote Pro-wound Healing Phenotypes DOI Creative Commons

Paulina Krzyszczyk,

Rene Schloss, Andre F. Palmer

и другие.

Frontiers in Physiology, Год журнала: 2018, Номер 9

Опубликована: Май 1, 2018

Macrophages play key roles in all phases of adult wound healing, which are inflammation, proliferation and remodeling. As wounds heal, the local macrophage population transitions from predominantly pro-inflammatory (M1-like phenotypes) to anti-inflammatory (M2-like phenotypes). Non-healing chronic wounds, such as pressure, arterial, venous diabetic ulcers indefinitely remain inflammation—the first stage healing. Thus, macrophages retain characteristics. This review discusses physiology monocytes acute healing different phenotypes described literature for both vitro vivo models. We also discuss aberrations that occur populations attempts restore function by therapeutic approaches. These include endogenous M1 attenuation, exogenous M2 supplementation modulation/M2 promotion via mesenchymal stem cells, growth factors, biomaterials, heme oxygenase-1 (HO-1) expression oxygen therapy. recognize challenges controversies exist this field, standardization phenotype nomenclature, definition their distinct understanding is optimal order promote wounds.

Язык: Английский

Процитировано

1206

Dialogue between skin microbiota and immunity DOI
Yasmine Belkaid, Julia A. Segre

Science, Год журнала: 2014, Номер 346(6212), С. 954 - 959

Опубликована: Ноя. 20, 2014

Human skin, the body's largest organ, functions as a physical barrier to bar entry of foreign pathogens, while concomitantly providing home myriad commensals. Over human's life span, keratinized skin cells, immune and microbes all interact integrate processes maintaining skin's under homeostatic healthy conditions also multiple stresses, such wounding or infection. In this Review, we explore intricate interactions cells on surface within associated appendages regulate orchestrated maturation in context both host physiological changes environmental challenges.

Язык: Английский

Процитировано

602

Skin Acute Wound Healing: A Comprehensive Review DOI Creative Commons
Luis Cañedo‐Dorantes,

Mara Cañedo-Ayala

International Journal of Inflammation, Год журнала: 2019, Номер 2019, С. 1 - 15

Опубликована: Июнь 2, 2019

Experimental work of the last two decades has revealed general steps wound healing process. This complex network been organized in three sequential and overlapping steps. The first step inflammatory phase is an immediate response to injury; primary sensory neurons sense injury send danger signals brain, stop bleeding start inflammation. following target phase, led by peripheral blood mononuclear cells, eliminate pathogens clean wound. Once this completed, resolved homeostasis restored. aim proliferative second repair damage begin tissue remodeling. Fibroplasia, reepithelialization, angiogenesis, nerve are central actions phase. Lastly, objective final complete remodeling restore skin integrity. review provides present day information regarding status participant extracellular matrix, cytokines, chemokines, growth factors, as well their interactions with microenvironment during

Язык: Английский

Процитировано

545

CD49a Expression Defines Tissue-Resident CD8 + T Cells Poised for Cytotoxic Function in Human Skin DOI Creative Commons

Stanley Cheuk,

Heinrich Schlums, Irène Gallais Sérézal

и другие.

Immunity, Год журнала: 2017, Номер 46(2), С. 287 - 300

Опубликована: Фев. 1, 2017

Tissue-resident memory T (Trm) cells form a heterogeneous population that provides localized protection against pathogens. Here, we identify CD49a as marker differentiates CD8+ Trm on compartmental and functional basis. In human skin epithelia, CD8+CD49a+ produced interferon-γ, whereas CD8+CD49a− interleukin-17 (IL-17). addition, from healthy rapidly induced the expression of effector molecules perforin granzyme B when stimulated with IL-15, thereby promoting strong cytotoxic response. patients vitiligo, where melanocytes are eradicated locally, constitutively expressed accumulated both in epidermis dermis. Conversely, CD8+CD49a– psoriasis lesions predominantly generated IL-17 responses promote local inflammation this disease. Overall, delineates cell specialization epithelial barriers correlates balance found distinct inflammatory diseases.

Язык: Английский

Процитировано

532

The Dynamics of the Skin’s Immune System DOI Open Access
Alan V. Nguyen, Athena M. Soulika

International Journal of Molecular Sciences, Год журнала: 2019, Номер 20(8), С. 1811 - 1811

Опубликована: Апрель 12, 2019

The skin is a complex organ that has devised numerous strategies, such as physical, chemical, and microbiological barriers, to protect the host from external insults. In addition, contains an intricate network of immune cells resident tissue, crucial for defense well tissue homeostasis. event insult, skin-resident are not only prevention infection but also reconstruction. Deregulation responses often leads impaired healing poor restoration function. this review, we will discuss defensive components focus on function in homeostasis their role wound healing.

Язык: Английский

Процитировано

515

A Wave of Regulatory T Cells into Neonatal Skin Mediates Tolerance to Commensal Microbes DOI Creative Commons
Tiffany C. Scharschmidt, Kimberly S. Vasquez,

Hong-An Truong

и другие.

Immunity, Год журнала: 2015, Номер 43(5), С. 1011 - 1021

Опубликована: Ноя. 1, 2015

Язык: Английский

Процитировано

476

Skin tissue engineering: wound healing based on stem-cell-based therapeutic strategies DOI Creative Commons

Azar Nourian Dehkordi,

Fatemeh Mirahmadi Babaheydari,

Mohammad Chehelgerdi

и другие.

Stem Cell Research & Therapy, Год журнала: 2019, Номер 10(1)

Опубликована: Март 29, 2019

Normal wound healing is a dynamic and complex multiple phase process involving coordinated interactions between growth factors, cytokines, chemokines, various cells. Any failure in these phases may lead wounds to become chronic have abnormal scar formation. Chronic affect patients' quality of life, since they require repetitive treatments incur considerable medical costs. Thus, much effort has been focused on developing novel therapeutic approaches for treatment. Stem-cell-based strategies proposed treat wounds. They shown potential improving the rate regenerating skin. However, there are many challenges using stem cells skin regeneration. In this review, we present some sets data published embryonic cells, induced pluripotent adult Additionally, will discuss different angles whereby can contribute their unique features show current drawbacks.

Язык: Английский

Процитировано

436

γδ T cells in homeostasis and host defence of epithelial barrier tissues DOI

Morten M. Nielsen,

Deborah A. Witherden, Wendy L. Havran

и другие.

Nature reviews. Immunology, Год журнала: 2017, Номер 17(12), С. 733 - 745

Опубликована: Сен. 18, 2017

Язык: Английский

Процитировано

408

Skin wound healing in humans and mice: Challenges in translational research DOI Open Access
Helena D. Zomer, Andréa Gonçalves Trentin

Journal of Dermatological Science, Год журнала: 2017, Номер 90(1), С. 3 - 12

Опубликована: Дек. 26, 2017

Язык: Английский

Процитировано

403

Dissecting the formation, structure and barrier function of the stratum corneum DOI Creative Commons

Takeshi Matsui,

Masayuki Amagai

International Immunology, Год журнала: 2015, Номер 27(6), С. 269 - 280

Опубликована: Март 26, 2015

The skin is the largest organ of mammalian body. outermost layer skin, stratum corneum (SC) epidermis, consists piles dead corneocytes that are end-products terminal differentiation epidermal keratinocytes. SC performs a crucial barrier function epidermis. Langerhans cells, when activated, extend their dendrites through tight junctions just beneath to capture external antigens. Recently, knowledge biology ('corneobiology') has progressed rapidly and many key factors modulate its have been identified characterized. In this review article on SC, we summarize evolution, formation, structure function. Cornification an important step formation at conversion living epithelial cells corneocytes, three major steps: intracellular keratin network, cornified envelopes intercellular lipids. After cornification, undergoes chemical reactions form mature with different functional layers. Finally, shed off surface ('desquamation'), mediated by cascade several proteases. This will be helpful understand our expanding where immunity meets

Язык: Английский

Процитировано

321