1
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Shahzadi L, Ramzan A, Anjum A, Jabbar F, Khan AF, Manzoor F, Shahzad SA, Chaudhry AA, Rehman IU, Yar M. An efficient new method for electrospinning chitosan and heparin for the preparation of pro‐angiogenic nanofibrous membranes for wound healing applications. J Appl Polym Sci 2022. [DOI: 10.1002/app.53212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lubna Shahzadi
- Interdisciplinary Research Center in Biomedical Materials COMSATS University Islamabad, Lahore Campus Lahore Pakistan
| | - Amna Ramzan
- Centre of Excellence in Molecular Biology (CEMB) University of the Punjab Lahore Pakistan
| | - Awais Anjum
- Interdisciplinary Research Center in Biomedical Materials COMSATS University Islamabad, Lahore Campus Lahore Pakistan
| | - Faiza Jabbar
- Interdisciplinary Research Center in Biomedical Materials COMSATS University Islamabad, Lahore Campus Lahore Pakistan
| | - Ather Farooq Khan
- Interdisciplinary Research Center in Biomedical Materials COMSATS University Islamabad, Lahore Campus Lahore Pakistan
| | - Faisal Manzoor
- Interdisciplinary Research Center in Biomedical Materials COMSATS University Islamabad, Lahore Campus Lahore Pakistan
| | - Sohail Anjum Shahzad
- Department of Chemistry COMSATS University Islamabad, Abbottabad Campus Abbottabad Pakistan
| | - Aqif Anwar Chaudhry
- Interdisciplinary Research Center in Biomedical Materials COMSATS University Islamabad, Lahore Campus Lahore Pakistan
| | | | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials COMSATS University Islamabad, Lahore Campus Lahore Pakistan
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2
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Shahzadi L, Jamal A, Hajivand P, Mahmood N, Chaudhry A, Rehman I, Yar M. Synthesis and wound healing performance of new
water‐soluble
chitosan derivatives. J Appl Polym Sci 2022. [DOI: 10.1002/app.51770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lubna Shahzadi
- Interdisciplinary Research Center in Biomedical Materials COMSATS University Islamabad Lahore Campus Pakistan
| | - Arshad Jamal
- Department of Biology University of Hail Hail Saudi Arabia
| | - Pegah Hajivand
- Faculty of Materials Science and Engineering Changzhou University Changzhou Jiangsu China
| | - Nasir Mahmood
- Department of Allied Health Sciences and Chemical Pathology University of Health Sciences Lahore Pakistan
| | - Aqif Chaudhry
- Interdisciplinary Research Center in Biomedical Materials COMSATS University Islamabad Lahore Campus Pakistan
| | | | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials COMSATS University Islamabad Lahore Campus Pakistan
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3
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Aleem AR, Shahzadi L, Nasir M, Hajivand P, Alvi F, Akhtar A, Zehra M, Mehmood A, Yar M. Developing sulfur-doped titanium oxide nanoparticles loaded chitosan/cellulose-based proangiogenic dressings for chronic ulcer and burn wounds healing. J Biomed Mater Res B Appl Biomater 2021; 110:1069-1081. [PMID: 34843162 DOI: 10.1002/jbm.b.34981] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 09/01/2021] [Accepted: 09/22/2021] [Indexed: 12/20/2022]
Abstract
Development of biomaterials supporting angiogenesis are highly desired in medical applications. In current work, chitosan and cellulose were cross-linked by using triethyl orthoformate and loaded with sulfur-doped titanium oxide nanoparticles. A readily available and inexpensive titanium oxide was added as a potential proangiogenic agent based on our group findings and other reports on metal oxide nanoparticles activity to stimulate angiogenesis. A simple freeze gelation method led to the development of flexible, foldable, and porous membranes. To investigate the chemical characteristics of the synthesized membranes, Fourier-transform infrared spectroscopy was used. Scanning electron microscopy equipped with energy-dispersive X-ray microanalysis was employed for surface morphological investigations. The cross-linked membranes showed higher degree of swelling capacity compared to the same material with titania-loaded nanoparticles in vitro. The synthesized materials showed higher degree of degradation in H2 O2 as compared to phosphate-buffered saline and lysozyme. Chorioallantoic membrane assay was done to investigate the angiogenic potential. Titanium oxide nanoparticles loaded membranes (CLHTS-5 wt%) exhibited the best degree of angiogenesis in comparison to the other tested materials. In CLHTS-5 wt% experimental group, a good level of attachment and ingrowth of several blood vessels was observed. Interestingly, the same tested group (CLHTS-5 wt%) had shown the increasing trend of cellular metabolic rate of the seeded cells from Day 0 to Day 7 in vitro. These findings were further confirmed by the decline in lactate dehydrogenase enzyme release which was monitored until 72 h, indicating the promising ability of this biomaterial in wound healing applications.
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Affiliation(s)
- Abdur R Aleem
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad Lahore Campus, Lahore, Pakistan.,Department of Physics, COMSATS University Islamabad Lahore Campus, Lahore, Pakistan.,Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, Qingdao University, Qingdao, China
| | - Lubna Shahzadi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad Lahore Campus, Lahore, Pakistan
| | - Muhammad Nasir
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad Lahore Campus, Lahore, Pakistan
| | - Pegah Hajivand
- Faculty of Materials Science and Engineering, Changzhou University, Changzhou, Jiangsu, China
| | - Farah Alvi
- Department of Physics, COMSATS University Islamabad Lahore Campus, Lahore, Pakistan
| | - Amna Akhtar
- Department of Chemical Engineering, COMSATS University Islamabad Lahore Campus, Lahore, Pakistan
| | - Mubashra Zehra
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad Lahore Campus, Lahore, Pakistan.,National Center of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan
| | - Azra Mehmood
- National Center of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan
| | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad Lahore Campus, Lahore, Pakistan
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4
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Shahzadi L, Bashir M, Tehseen S, Zehra M, Mehmood A, Chaudhry AA, Rehman IU, Yar M. Thyroxine impregnated chitosan-based dressings stimulate angiogenesis and support fast wounds healing in rats: Potential clinical candidates. Int J Biol Macromol 2020; 160:296-306. [DOI: 10.1016/j.ijbiomac.2020.05.127] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 05/14/2020] [Accepted: 05/16/2020] [Indexed: 10/24/2022]
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5
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Zehra M, Mehmood A, Yar M, Shahzadi L, Riazuddin S. Development of NSAID-loaded nano-composite scaffolds for skin tissue engineering applications. J Biomed Mater Res B Appl Biomater 2020; 108:3064-3075. [PMID: 32619310 DOI: 10.1002/jbm.b.34634] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 04/10/2020] [Accepted: 04/29/2020] [Indexed: 12/12/2022]
Abstract
Scar free healing together with pain management is one of the major considerations in full thickness wound healing. Extensive wounds take longer to heal without any clinical intervention and, hence, need natural or artificial extracellular matrix support for quick skin regeneration. To address these issues, medicated 3D porous biomimetic scaffolds were developed with a unique combination of biopolymers, that is, chitosan, sodium alginate, and elastin, supplemented with a non-steroidal anti-inflammatory drug (NSAID). Scaffolds were physically characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), swelling ratio analysis, and degradation studies. Findings of the performed analyses proved that these skin substitutes suitable for skin tissue engineering applications attributable to their nano-microporous structures (pore size in range of 0.085-256 μm) allowing cell infiltration and high-water absorption capacity for management of wound exudates. Optimal dose of the loaded ibuprofen was estimated by evaluating effect of variable concentrations of ibuprofen (control, ILM-10, ILM-15, and ILM-20) on adipose tissue-derived mesenchymal stem cells (ASCs) proliferation rate. Out of all experimental groups, ILM-20 constructs were found to accelerate the proliferation rate of seeded ASCs confirming their non-cytotoxic characteristics as well potential to be used for translational scaffold-based therapies.
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Affiliation(s)
- Mubashra Zehra
- National Center of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan.,Wake Forest Institute of Regenerative Medicine, Winston-Salem, North Carolina, USA
| | - Azra Mehmood
- National Center of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan
| | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore, Pakistan
| | - Lubna Shahzadi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore, Pakistan
| | - Sheikh Riazuddin
- National Center of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan.,Jinnah Burn and Reconstructive Surgery Centre, Lahore, Pakistan
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6
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Malik MH, Shahzadi L, Batool R, Safi SZ, Khan AS, Khan AF, Chaudhry AA, Rehman IU, Yar M. Thyroxine-loaded chitosan/carboxymethyl cellulose/hydroxyapatite hydrogels enhance angiogenesis in in-ovo experiments. Int J Biol Macromol 2019; 145:1162-1170. [PMID: 31730970 DOI: 10.1016/j.ijbiomac.2019.10.043] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/25/2019] [Accepted: 10/03/2019] [Indexed: 12/11/2022]
Abstract
Angiogenesis is one of the most important processes in repair and regeneration of many tissues and organs. Blood vessel formation also play a major role in repair of dental tissue(s) after ailments like periodontitis. Here we report the preparation of chitosan/carboxymethyl cellulose/hydroxyapatite based hydrogels, loaded with variable concentrations of thyroxin i.e., 0.1 μg/ml, 0.5 μg/ml and 1 μg/ml. Scanning electron microcopy images (SEM) showed all hydrogels were found to be porous and solution absorption study exhibited high swelling potential in aqueous media. FTIR spectra confirmed that the used materials did not change their chemical identity in synthesized hydrogels. The synthesized hydrogels demonstrated good bending, folding, rolling and stretching abilities. The hydrogels were tested in chick chorioallantoic membrane (CAM) assay to investigate their angiogenic potential. Hydrogel containing 0.1 μg/ml of thyroxine showed maximum neovascularization. For cytotoxicity analyses, preosteoblast cells (MC3T3-E1) were seeded on these hydrogels and materials were found to be non-toxic. These hydrogels with pro-angiogenic activity possess great potential to be used for periodontal regeneration.
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Affiliation(s)
- Muhammad Hamza Malik
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, 54000, Pakistan
| | - Lubna Shahzadi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, 54000, Pakistan
| | - Razia Batool
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, 54000, Pakistan
| | - Sher Zaman Safi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, 54000, Pakistan
| | - Abdul Samad Khan
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, 54000, Pakistan; Department of Restorative Dental Sciences, College of Dentistry, University of Dammam, 31441, Saudi Arabia
| | - Ather Farooq Khan
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, 54000, Pakistan
| | - Aqif Anwar Chaudhry
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, 54000, Pakistan
| | - Ihtesham Ur Rehman
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, 54000, Pakistan; Engineering Department, Lancaster University, Lancaster, UK
| | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, 54000, Pakistan.
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7
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Zahid S, Khalid H, Ikram F, Iqbal H, Samie M, Shahzadi L, Shah AT, Yar M, Chaudhry AA, Awan SJ, Khan AF, Rehman IU. Bi-layered α-tocopherol acetate loaded membranes for potential wound healing and skin regeneration. Materials Science and Engineering: C 2019; 101:438-447. [DOI: 10.1016/j.msec.2019.03.080] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/19/2019] [Accepted: 03/22/2019] [Indexed: 10/27/2022]
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8
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Rizwan M, Yahya R, Hassan A, Yar M, Abd Halim AA, Rageh Al-Maleki A, Shahzadi L, Zubairi W. Novel chitosan derivative based composite scaffolds with enhanced angiogenesis; potential candidates for healing chronic non-healing wounds. J Mater Sci Mater Med 2019; 30:72. [PMID: 31187295 DOI: 10.1007/s10856-019-6273-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Accepted: 05/25/2019] [Indexed: 06/09/2023]
Abstract
The success of wound healing depends upon the proper growth of vascular system in time in the damaged tissues. Poor blood supply to wounded tissues or tissue engineered grafts leads to the failure of wound healing or rejection of grafts. In present paper, we report the synthesis of novel organosoluble and pro-angiogenic chitosan derivative (CSD) by the reaction of chitosan with 1,3-dimethylbarbituric acid and triethylorthoformate (TEOF). The synthesized material was characterized by FTIR and 13C-NMR to confirm the incorporated functional groups and new covalent connectivities. Biodegradability of the synthesized chitosan derivative was tested in the presence of lysozyme and was found to be comparable with CS. The cytotoxicity and apoptosis effect of new derivative was determined against gastric adenocarcinoma (AGS) cells and was found to be non-toxic. The CSD was found to be soluble in majority of organic solvents. It was blended with polycaprolactone (PCL) to form composite scaffolds. From an ex ovo CAM assay, it was noted that CSD stimulated the angiogenesis.
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Affiliation(s)
- Muhammad Rizwan
- Department of Chemistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Rosiyah Yahya
- Department of Chemistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Aziz Hassan
- Department of Chemistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University, Lahore, 54000, Pakistan
| | - Adyani Azizah Abd Halim
- Department of Oral and Craniofacial Sciences, Faculty of Dentistry, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Anis Rageh Al-Maleki
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Lubna Shahzadi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University, Lahore, 54000, Pakistan
| | - Waliya Zubairi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University, Lahore, 54000, Pakistan
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9
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Shahzad SA, Yar M, Khan ZA, Shahzadi L, Naqvi SAR, Mahmood A, Ullah S, Shaikh AJ, Sherazi TA, Bale AT, Kukułowicz J, Bajda M. Identification of 1,2,4-triazoles as new thymidine phosphorylase inhibitors: Future anti-tumor drugs. Bioorg Chem 2019; 85:209-220. [DOI: 10.1016/j.bioorg.2019.01.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 12/29/2018] [Accepted: 01/02/2019] [Indexed: 02/01/2023]
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10
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Ahtzaz S, Sher Waris T, Shahzadi L, Anwar Chaudhry A, Ur Rehman I, Yar M. Boron for tissue regeneration-it’s loading into chitosan/collagen hydrogels and testing on chorioallantoic membrane to study the effect on angiogenesis. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1581202] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Samreen Ahtzaz
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University, Lahore, Pakistan
| | - Tayyaba Sher Waris
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University, Lahore, Pakistan
| | - Lubna Shahzadi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University, Lahore, Pakistan
| | - Aqif Anwar Chaudhry
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University, Lahore, Pakistan
| | - Ihtesham Ur Rehman
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University, Lahore, Pakistan
- Engineering Department, Lancaster University, Lancaster, UK
| | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University, Lahore, Pakistan
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11
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Shahzadi L, Chaudhry AA, Aleem AR, Malik MH, Ijaz K, Akhtar H, Alvi F, Khan AF, Rehman IU, Yar M. Development of K-doped ZnO nanoparticles encapsulated crosslinked chitosan based new membranes to stimulate angiogenesis in tissue engineered skin grafts. Int J Biol Macromol 2018; 120:721-728. [DOI: 10.1016/j.ijbiomac.2018.08.103] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 08/10/2018] [Accepted: 08/21/2018] [Indexed: 11/30/2022]
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12
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Jamal A, Shahzadi L, Ahtzaz S, Zahid S, Chaudhry AA, Rehman IU, Yar M. Identification of anti-cancer potential of doxazocin: Loading into chitosan based biodegradable hydrogels for on-site delivery to treat cervical cancer. Materials Science and Engineering: C 2018; 82:102-109. [DOI: 10.1016/j.msec.2017.08.054] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 07/24/2017] [Accepted: 08/10/2017] [Indexed: 12/19/2022]
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13
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Iqbal H, Ali M, Zeeshan R, Mutahir Z, Iqbal F, Nawaz MAH, Shahzadi L, Chaudhry AA, Yar M, Luan S, Khan AF, Rehman IU. Chitosan/hydroxyapatite (HA)/hydroxypropylmethyl cellulose (HPMC) spongy scaffolds-synthesis and evaluation as potential alveolar bone substitutes. Colloids Surf B Biointerfaces 2017; 160:553-563. [PMID: 29024920 DOI: 10.1016/j.colsurfb.2017.09.059] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 09/08/2017] [Accepted: 09/29/2017] [Indexed: 01/27/2023]
Abstract
Alveolar bone loss is associated with infections and its augmentation is a pre-requisite for the success of dental implants. In present study, we aim to develop and evaluate novel freeze dried doxycycline loaded chitosan (CS)/hydroxyapatite (HA) spongy scaffolds where hydroxypropylmethyl cellulose (HPMC) was added as a crosslinker. Scaffolds displayed compressive strength of 14MPa/cm3 and 0.34 as elastic response. The interconnected pore diameter was 41-273μm, favorably provided the template supporting cells and transport. An overall 10% degradation was seen after 14day's studies at pH 7.4 in PBS. Doxycycline hyclate, a frequently used drug to counter oral infections, demonstrated an initial burst release (6-8h), followed by a sustain release profile for the remaining 64h. CS/HA/HPMC scaffolds were nontoxic and promoted pre-osteoblast cell viability as seen with live/dead calcein staining after 24h where scaffolds with 10% and 25% HPMC by weight of scaffold had more viable cells. Scaffolds with 10%, 20% and 25% HPMC by weight of scaffold showed efficient cellular adhesion as seen in scanning electron microscopy images (day 8) indicating that pre-osteoblast cells were able to adhere well on the surface and into the porous structure via cytoplasmic extensions. Hoechst 33258 nuclear staining at day 2 and 8 indicated cell proliferation which was further supported byMTT assay at day 2, 4 and 8. Although all scaffolds supported pre-osteoblast cell viability, alkaline phosphatase (ALP) staining demonstrated that upon induction, differentiation was pronounced in case of scaffolds with 10% HMPC scaffolds. Conclusively, these materials having all the required mechanical and biological properties are potential candidates for alveolar bone regeneration.
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Affiliation(s)
- Haffsah Iqbal
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS Institute of Information Technology, Defence Road, Off Raiwind Road, Lahore, 54000, Pakistan
| | - Moazzam Ali
- Institute of Biochemistry and Biotechnology, University of the Punjab, 54590 Lahore, Pakistan
| | - Rabia Zeeshan
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS Institute of Information Technology, Defence Road, Off Raiwind Road, Lahore, 54000, Pakistan
| | - Zeeshan Mutahir
- Institute of Biochemistry and Biotechnology, University of the Punjab, 54590 Lahore, Pakistan
| | - Farasat Iqbal
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS Institute of Information Technology, Defence Road, Off Raiwind Road, Lahore, 54000, Pakistan
| | - Muhammad Azhar Hayat Nawaz
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS Institute of Information Technology, Defence Road, Off Raiwind Road, Lahore, 54000, Pakistan
| | - Lubna Shahzadi
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS Institute of Information Technology, Defence Road, Off Raiwind Road, Lahore, 54000, Pakistan
| | - Aqif Anwar Chaudhry
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS Institute of Information Technology, Defence Road, Off Raiwind Road, Lahore, 54000, Pakistan
| | - Muhammad Yar
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS Institute of Information Technology, Defence Road, Off Raiwind Road, Lahore, 54000, Pakistan
| | - Shifang Luan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Ather Farooq Khan
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS Institute of Information Technology, Defence Road, Off Raiwind Road, Lahore, 54000, Pakistan.
| | - Ihtesham-Ur Rehman
- The Kroto Research Institute, North Campus, University of Sheffield, Broad Lane, Sheffield, S3 7HQ, UK
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14
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Yar M, Shahzad S, Shahzadi L, Shahzad SA, Mahmood N, Chaudhry AA, Rehman IU, MacNeil S. Heparin binding chitosan derivatives for production of pro-angiogenic hydrogels for promoting tissue healing. Mater Sci Eng C Mater Biol Appl 2016; 74:347-356. [PMID: 28254303 DOI: 10.1016/j.msec.2016.12.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 11/10/2016] [Accepted: 12/05/2016] [Indexed: 12/22/2022]
Abstract
Our aim was to develop a biocompatible hydrogel that could be soaked in heparin and placed on wound beds to improve the vasculature of poorly vascularized wound beds. In the current study, a methodology was developed for the synthesis of a new chitosan derivative (CSD-1). Hydrogels were synthesized by blending CSD-1 for either 4 or 24h with polyvinyl alcohol (PVA). The physical/chemical interactions and the presence of specific functional groups were confirmed by Fourier transform infrared (FT-IR) spectroscopy and proton nuclear magnetic resonance (1H NMR). The porous nature of the hydrogels was confirmed by scanning electron microscopy (SEM). Thermal gravimetric analysis (TGA) showed that these hydrogels have good thermal stability which was slightly increased as the blending time was increased. Hydrogels produced with 24h of blending supported cell attachment more and could be loaded with heparin to induce new blood vessel formation in a chick chorionic allantoic membrane assay.
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Affiliation(s)
- Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan.
| | - Sohail Shahzad
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan; Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Lubna Shahzadi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan
| | - Sohail Anjum Shahzad
- Department of Chemistry, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan
| | - Nasir Mahmood
- Department of Allied Health Sciences and Chemical Pathology, University of Health Sciences, Lahore, Pakistan; Department of Human Genetics and Molecular Biology, University of Health Sciences, Lahore, Pakistan
| | - Aqif Anwar Chaudhry
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan
| | - Ihtesham Ur Rehman
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore 54000, Pakistan; Materials Science and Engineering, North Campus, University of Sheffield, Broad Lane, Sheffield S3 7HQ, UK
| | - Sheila MacNeil
- Materials Science and Engineering, North Campus, University of Sheffield, Broad Lane, Sheffield S3 7HQ, UK.
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Shahzad S, Shahzadi L, Mahmood N, Siddiqi SA, Rauf A, Manzoor F, Chaudhry AA, Rehman IU, Yar M. A new synthetic methodology for the preparation of biocompatible and organo-soluble barbituric- and thiobarbituric acid based chitosan derivatives for biomedical applications. Materials Science and Engineering: C 2016; 66:156-163. [DOI: 10.1016/j.msec.2016.04.056] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 04/06/2016] [Accepted: 04/14/2016] [Indexed: 10/21/2022]
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16
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Shahzadi L, Yar M, Jamal A, Siddiqi SA, Chaudhry AA, Zahid S, Tariq M, Rehman IU, MacNeil S. Triethyl orthoformate covalently cross-linked chitosan-(poly vinyl) alcohol based biodegradable scaffolds with heparin-binding ability for promoting neovascularisation. J Biomater Appl 2016; 31:582-593. [DOI: 10.1177/0885328216650125] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
There is a need to develop pro-angiogenic biomaterials to promote wound healing and to assist in regenerative medicine. To this end, various growth factors have been exploited which have the potential to promote angiogenesis. However, these are generally expensive and labile which limits their effectiveness. An alternative approach is to immobilize heparin onto biocompatible degradable hydrogels. The heparin in turn will then bind endogenous proangiogenic growth factors to induce formation of new blood vessels. In this study, we continue our development of hydrogels for wound healing purposes by exploring covalently cross-linking chitosan and polyvinyl alcohol hydrogels using triethyl orthoformate. Two concentrations of triethyl orthoformate (4 and 16%) were compared for their effects on the structure of hydrogels – their swelling, pore size, and rate of degradation and for their ability to support the growth of cells and for their heparin-binding capacity and their effects on angiogenesis in a chick chorioallantoic membrane assay. Hydrogels formed with 4 or 16% both triethyl orthoformate cross-linker were equally cyto-compatible. Hydrogels formed with 4% triethyl orthoformate absorbed slightly more water than those made with 16% triethyl orthoformate and broke down slightly faster than non-cross-linked hydrogels. When soaked in heparin the hydrogel formed with 16% triethyl orthoformate showed more blood vessel formation in the CAM assay than that formed with 4% triethyl orthoformate.
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Affiliation(s)
- Lubna Shahzadi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Pakistan
| | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Pakistan
| | - Arshad Jamal
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Pakistan
| | - Saadat Anwar Siddiqi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Pakistan
| | - Aqif Anwar Chaudhry
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Pakistan
| | - Saba Zahid
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Pakistan
| | - Muhammad Tariq
- Department of Biology, Lahore University of Management Sciences (LUMS), Pakistan
| | - Ihtesham ur Rehman
- Material Science and Engineering, University of Sheffield, UK Materials Science and Engineering, North Campus, University of Sheffield, Broad Lane, UK
| | - Sheila MacNeil
- Material Science and Engineering, University of Sheffield, UK Materials Science and Engineering, North Campus, University of Sheffield, Broad Lane, UK
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17
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Yar M, Gigliobianco G, Shahzadi L, Dew L, Siddiqi SA, Khan AF, Chaudhry AA, Rehman IU, MacNeil S. Production of chitosan PVA PCL hydrogels to bind heparin and induce angiogenesis. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2015.1129959] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Farooq A, Yar M, Khan AS, Shahzadi L, Siddiqi SA, Mahmood N, Rauf A, Qureshi ZUA, Manzoor F, Chaudhry AA, ur Rehman I. Synthesis of piroxicam loaded novel electrospun biodegradable nanocomposite scaffolds for periodontal regeneration. Mater Sci Eng C Mater Biol Appl 2015; 56:104-13. [PMID: 26249571 DOI: 10.1016/j.msec.2015.06.006] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 05/12/2015] [Accepted: 06/09/2015] [Indexed: 11/17/2022]
Abstract
Development of biodegradable composites having the ability to suppress or eliminate the pathogenic micro-biota or modulate the inflammatory response has attracted great interest in order to limit/repair periodontal tissue destruction. The present report includes the development of non-steroidal anti-inflammatory drug encapsulated novel biodegradable chitosan (CS)/poly(vinyl alcohol) (PVA)/hydroxyapatite (HA) electro-spun (e-spun) composite nanofibrous mats and films and study of the effect of heat treatment on fibers and films morphology. It also describes comparative in-vitro drug release profiles from heat treated and control (non-heat treated) nanofibrous mats and films containing varying concentrations of piroxicam (PX). Electrospinning was used to obtain drug loaded ultrafine fibrous mats. The physical/chemical interactions were evaluated by Fourier Transform Infrared (FT-IR) spectroscopy. The morphology, structure and pore size of the materials were investigated by scanning electron microscopy (SEM). The thermal behavior of the materials was investigated by thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). Control (not heat treated) and heat treated e-spun fibers mats and films were tested for in vitro drug release studies at physiological pH7.4 and initially, as per requirement burst release patterns were observed from both fibers and films and later sustained release profiles were noted. In vitro cytocompatibility was performed using VERO cell line of epithelial cells and all the synthesized materials were found to be non-cytotoxic. The current observations suggested that these materials are potential candidates for periodontal regeneration.
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Affiliation(s)
- Ariba Farooq
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan; Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore,54000, Pakistan
| | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore,54000, Pakistan.
| | - Abdul Samad Khan
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore,54000, Pakistan
| | - Lubna Shahzadi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore,54000, Pakistan
| | - Saadat Anwar Siddiqi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore,54000, Pakistan
| | - Nasir Mahmood
- Department of Allied Health Sciences and Chemical Pathology, University of Health Sciences, Lahore, Pakistan; Department of Human Genetics and Molecular Biology, University of Health Sciences, Lahore, Pakistan
| | - Abdul Rauf
- Department of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | | | - Faisal Manzoor
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore,54000, Pakistan
| | - Aqif Anwar Chaudhry
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore,54000, Pakistan
| | - Ihtesham ur Rehman
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore,54000, Pakistan; Department of Materials Science and Engineering, The Kroto Research Institute, The University of Sheffield, North Campus, Broad Lane, Sheffield S3 7HQ, United Kingdom
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19
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Yar M, Bajda M, Mehmood RA, Sidra LR, Ullah N, Shahzadi L, Ashraf M, Ismail T, Shahzad SA, Khan ZA, Naqvi SAR, Mahmood N. Design and Synthesis of New Dual Binding Site Cholinesterase Inhibitors: in vitro Inhibition Studies with in silico Docking. LETT DRUG DES DISCOV 2014; 11:331-338. [PMID: 24719609 PMCID: PMC3977535 DOI: 10.2174/15701808113106660078] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 08/09/2013] [Accepted: 09/16/2013] [Indexed: 11/22/2022]
Abstract
Cholinesterases (ChEs) play a vital role in the regulation of cholinergic transmission. The inhibition of ChEs is
considered to be involved in increasing acetylcholine level in the brain and thus has been implicated in the treatment of
Alzheimer’s disease. We have designed and synthesized a series of novel indole derivatives and screened them for inhibition
of acetylcholinesterase (AChE) and butyrylcholinesterase (BChE). Most of the tested compounds exhibited inhibitory
activity against AChE and BChE. Among them 4f and 6e showed the highest AChE inhibitory activity with
IC50 91.21±0.06 and 68.52±0.04 μM, respectively. However compound 5a exhibited the highest inhibitory activity against
BChE (IC50 55.21±0.12 μM).
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Affiliation(s)
- Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore, 54000, Pakistan
| | - Marek Bajda
- Faculty of Chemistry, University of Warsaw, 02-093 Warsaw, Pasteura 1, Poland and Department of Physicochemical Drug Analysis, Faculty of Pharmacy, Jagiellonian University Medical College, 30-688 Cracow, Medyczna 9, Poland
| | - Rana Atif Mehmood
- Department of Chemistry, Government College University, Lahore, 54000, Pakistan
| | - Lala Rukh Sidra
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore, 54000, Pakistan
| | - Nisar Ullah
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Lubna Shahzadi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore, 54000, Pakistan
| | - Muhammad Ashraf
- Department of Biochemistry & Biotechnology, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Tayaba Ismail
- Department of Biochemistry & Biotechnology, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Sohail Anjum Shahzad
- Department of Chemistry, COMSATS Institute of Information Technology, Abbottabad, 22060, Pakistan
| | - Zulfiqar Ali Khan
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore, 54000, Pakistan
| | - Syed Ali Raza Naqvi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore, 54000, Pakistan
| | - Nasir Mahmood
- Department of Allied Sciences and Chemical Pathology, University of Health Sciences, Lahore, 54600, Pakistan
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