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Giteru SG, Ramsey DH, Hou Y, Cong L, Mohan A, Bekhit AEDA. Wool keratin as a novel alternative protein: A comprehensive review of extraction, purification, nutrition, safety, and food applications. Compr Rev Food Sci Food Saf 2023; 22:643-687. [PMID: 36527315 DOI: 10.1111/1541-4337.13087] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 11/04/2022] [Accepted: 11/17/2022] [Indexed: 12/23/2022]
Abstract
The growing global population and lifestyle changes have increased the demand for specialized diets that require protein and other essential nutrients for humans. Recent technological advances have enabled the use of food bioresources treated as waste as additional sources of alternative proteins. Sheep wool is an inexpensive and readily available bioresource containing 95%-98% protein, making it an outstanding potential source of protein for food and biotechnological applications. The strong structure of wool and its indigestibility are the main hurdles to achieving its potential as an edible protein. Although various methods have been investigated for the hydrolysis of wool into keratin, only a few of these, such as sulfitolysis, oxidation, and enzymatic processes, have the potential to generate edible keratin. In vitro and in vivo cytotoxicity studies reported no cytotoxicity effects of extracted keratin, suggesting its potential for use as a high-value protein ingredient that supports normal body functions. Keratin has a high cysteine content that can support healthy epithelia, glutathione synthesis, antioxidant functions, and skeletal muscle functions. With the recent spike in new keratin extraction methods, extensive long-term investigations that examine prolonged exposure of keratin generated from these techniques in animal and human subjects are required to ascertain its safety. Food applications of wool could improve the ecological footprint of sheep farming and unlock the potential of a sustainable protein source that meets demands for ethical production of animal protein.
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Affiliation(s)
| | | | - Yakun Hou
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Lei Cong
- Department of Agribusiness and Markets, Lincoln University, Lincoln, New Zealand
| | - Anand Mohan
- Alliance Group Limited, Invercargill, New Zealand
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Phenethyl Isothiocyanate-Containing Carbomer Gel for Use against Squamous Cell Carcinoma. Pharmaceutics 2021; 13:pharmaceutics13010106. [PMID: 33467626 PMCID: PMC7830123 DOI: 10.3390/pharmaceutics13010106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 12/26/2022] Open
Abstract
It is currently estimated that one in every five Americans will develop skin cancer during their lifetime. Squamous cell carcinoma (SCC) is a common type of skin cancer that can develop due to the skin’s exposure to the sun. Herein, we prepared a topical gel containing 0.5% v/w phenethyl isothiocyanate (PEITC) for the treatment of SCC. PEITC is a naturally occurring isothiocyanate that has been shown to have efficacy against various types of cancer in preclinical studies. We first incorporated PEITC into a carbomer gel. A uniform formulation was prepared, and its viscosity was appropriate for topical application. We then demonstrated the release of PEITC from the gel into and through a Strat-M skin-like membrane. Finally, the effects of the PEITC-containing gel were tested against SCC and normal keratinocytes skin cells in culture, and these results were compared to those obtained for free 5-fluoruracil (5-FU), a commonly used skin-cancer drug. Our results show that a homogeneous PEITC-containing topical gel can be prepared and used to kill SCC cells. Thus, our formulation may be useful for treating SCC in the clinic.
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Dika E, Patrizi A, Veronesi G, Manuelpillai N, Lambertini M. Malignant cutaneous tumours of the scalp: always remember to examine the head. J Eur Acad Dermatol Venereol 2020; 34:2208-2215. [DOI: 10.1111/jdv.16330] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 02/18/2020] [Indexed: 12/15/2022]
Affiliation(s)
- E. Dika
- Dermatology Department of Experimental, Diagnostic and Specialty Medicine University of Bologna Bologna Italy
| | - A. Patrizi
- Dermatology Department of Experimental, Diagnostic and Specialty Medicine University of Bologna Bologna Italy
| | - G. Veronesi
- Dermatology Department of Experimental, Diagnostic and Specialty Medicine University of Bologna Bologna Italy
| | - N. Manuelpillai
- Dermatology Department of Experimental, Diagnostic and Specialty Medicine University of Bologna Bologna Italy
| | - M. Lambertini
- Dermatology Department of Experimental, Diagnostic and Specialty Medicine University of Bologna Bologna Italy
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Pandey A, Liaukovich M, Joshi K, Avezbakiyev BI, O'Donnell JE. Uncommon Presentation of Metastatic Squamous Cell Carcinoma of the Skin and Treatment Challenges. AMERICAN JOURNAL OF CASE REPORTS 2019; 20:294-299. [PMID: 30837448 PMCID: PMC6419533 DOI: 10.12659/ajcr.913488] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Patient: Female, 80 Final Diagnosis: Metastatic squamous cell carcinoma of skin Symptoms: Back pain • leg swelling • uti Medication: — Clinical Procedure: Immunotherapy Specialty: Oncology
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Affiliation(s)
- Anita Pandey
- Department of Hematology and Oncology, Brookdale University Hospital Medical Center, Brooklyn, NY, USA
| | - Maksim Liaukovich
- Department of Hematology and Oncology, Brookdale University Hospital Medical Center, Brooklyn, NY, USA
| | - Kishor Joshi
- Department of Internal Medicine, Brookdale University Hospital Medical Center, Brooklyn, NY, USA
| | - Boris I Avezbakiyev
- Department of Hematology and Oncology, Brookdale University Hospital Medical Center, Brooklyn, NY, USA
| | - James E O'Donnell
- Department of Pathology, Brookdale University Hospital Medical Center, Brooklyn, NY, USA
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Potenza C, Bernardini N, Balduzzi V, Losco L, Mambrin A, Marchesiello A, Tolino E, Zuber S, Skroza N, Proietti I. A Review of the Literature of Surgical and Nonsurgical Treatments of Invasive Squamous Cells Carcinoma. BIOMED RESEARCH INTERNATIONAL 2018; 2018:9489163. [PMID: 29808169 PMCID: PMC5902082 DOI: 10.1155/2018/9489163] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 12/12/2017] [Accepted: 02/18/2018] [Indexed: 01/11/2023]
Abstract
Cutaneous squamous cell carcinoma (cSCC) is an increasing public health problem. It is a primary malignant skin tumor with Malpighian differentiation and together with basal cell carcinoma is classified among nonmelanoma skin cancers (NMSCs). cSCC usually occurs on photoexposed areas, such as the head, the neck, and the extremities, and its incidence increases with age. Invasive forms of this skin tumor tend to be more aggressive showing a higher metastatic potential, usually regarding regional lymph nodes. Treatment options for invasive cSCCs include both surgical and nonsurgical options. The therapeutic choice depends on several factors, such as anatomic location, risk factors for tumor recurrence, age, and health status of the patient. This review aims to provide an overview of the current evidence on therapeutic surgical and nonsurgical management of invasive cSCC.
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Affiliation(s)
- Concetta Potenza
- Dermatology Unit “Daniele Innocenzi”, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Polo Pontino, Rome, Italy
| | - Nicoletta Bernardini
- Dermatology Unit “Daniele Innocenzi”, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Polo Pontino, Rome, Italy
| | - Veronica Balduzzi
- Dermatology Unit “Daniele Innocenzi”, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Polo Pontino, Rome, Italy
| | - Luigi Losco
- Plastic Surgery Unit, Department of Surgery, Sapienza University of Rome, Rome, Italy
| | - Alessandra Mambrin
- Dermatology Unit “Daniele Innocenzi”, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Polo Pontino, Rome, Italy
| | - Anna Marchesiello
- Dermatology Unit “Daniele Innocenzi”, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Polo Pontino, Rome, Italy
| | - Ersilia Tolino
- Dermatology Unit “Daniele Innocenzi”, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Polo Pontino, Rome, Italy
| | - Sara Zuber
- Dermatology Unit “Daniele Innocenzi”, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Polo Pontino, Rome, Italy
| | - Nevena Skroza
- Dermatology Unit “Daniele Innocenzi”, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Polo Pontino, Rome, Italy
| | - Ilaria Proietti
- Dermatology Unit “Daniele Innocenzi”, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Polo Pontino, Rome, Italy
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