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Article ; Online: Insight into the function of tetranectin in human diseases

Sana Iram / Safikur Rahman / Inho Choi / Jihoe Kim

Heliyon, Vol 10, Iss 1, Pp e23512- (2024)

A review and prospects for tetranectin-targeted disease treatment

1481

Abstract: Tetranectin (TN), a serum protein, is closely associated with different types of cancers. TN binds plasminogen and promotes the proteolytic activation of plasminogen into plasmin, which suggests that TN is involved in remodeling the extracellular matrix ... ...

Abstract	Tetranectin (TN), a serum protein, is closely associated with different types of cancers. TN binds plasminogen and promotes the proteolytic activation of plasminogen into plasmin, which suggests that TN is involved in remodeling the extracellular matrix and cancer tissues during cancer development. TN is also associated with other diseases, such as developmental disorders, cardiovascular diseases, neurological diseases, inflammation, and diabetes. Although the functional mechanism of TN in diseases is not fully elucidated, TN binds different proteins, such as structural protein, a growth factor, and a transcription regulator. Moreover, TN changes and regulates protein functions, indicating that TN-binding proteins mediate the association between TN and diseases. This review summarizes the current knowledge of TN-associated diseases and TN functions with TN-binding proteins in different diseases. In addition, potential TN-targeted disease treatment by inhibiting the interaction between TN and its binding proteins is discussed.
Keywords	Tetranectin ; Cancers ; Developmental disorders ; Neurological diseases ; Inflammation ; Diabetes ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
Language	English
Publishing date	2024-01-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Elaeagnus umbellata

Mujtaba Aamir Bhat / Awdhesh Kumar Mishra / Mohammad Azhar Kamal / Safikur Rahman / Arif Tasleem Jan

Saudi Journal of Biological Sciences, Vol 30, Iss 6, Pp 103662- (2023)

A miraculous shrub with potent health-promoting benefits from Northwest Himalaya

2023

Abstract: Medicinal plants encompassing a series of bioactive compounds have gained significant importance for use in the treatment of different diseases. Of them, Elaeagnus umbellata Thunb. (Deciduous shrub found in dappled shade, and sunny hedge) exhibits high ... ...

Abstract	Medicinal plants encompassing a series of bioactive compounds have gained significant importance for use in the treatment of different diseases. Of them, Elaeagnus umbellata Thunb. (Deciduous shrub found in dappled shade, and sunny hedge) exhibits high medicinal value, with a widespread distribution across the Pir Panjal region of the Himalayas. Fruits serve as an excellent source of vitamins, minerals, and other essential compounds that exhibits hypolipidemic, hepatoprotective, and nephroprotective effects. The phytochemical fingerprint of berries revealed them to have a high content of polyphenols (with major proportion of anthocyanins), followed by monoterpenes and vitamin C. Extract of fruits help in regulating the digestion and absorption of glucose and reduces inflammation and oxidative stress. The phytosterols upholding anticoagulant activity serve the purpose of causing decrease in angina and the blood cholesterol levels. Phytochemicals such as eugenol, palmitic acid, and methyl palmitate exhibit potent antibacterial activity against broad range of disease-causing agents. Additionally, a high percentage of essential oils attribute it with the property of being effective against heart ailments. The present study highlights the importance of E. umbellata in traditional medicinal practices, and summarizes the knowledge of its bioactive constituents and a snapshot vision of remarkable biological activities like antimicrobial, antidiabetic, antioxidant, etc towards understanding its role in the development of efficient drug regimens for use in the treatment of different diseases. It also underlines the need to explore the plant on nutritional aspects to strengthen the existing knowledge pertaining to health promoting potential of E. umbellata.
Keywords	Antioxidant ; Disease prevention ; Elaeagnus umbellata ; Phytochemicals ; Therapeutics ; Biology (General) ; QH301-705.5
Language	English
Publishing date	2023-06-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Study of Amiloride Binding to Human Serum Albumin

Safikur Rahman / Sana Iram / Md Tabish Rehman / Afzal Hussain / Arif Tasleem Jan / Jihoe Kim

Molecules, Vol 28, Iss 23, p

Insights from Thermodynamic, Spectroscopic, and Molecular Docking Investigations

2023 Volume 7688

Abstract: This study was undertaken to investigate the interaction between the sodium channel blocker amiloride (AML) and human serum albumin (HSA). A combination of multi-spectroscopic techniques and computational methods were employed to identify the AML binding ...

Abstract	This study was undertaken to investigate the interaction between the sodium channel blocker amiloride (AML) and human serum albumin (HSA). A combination of multi-spectroscopic techniques and computational methods were employed to identify the AML binding site on HSA and the forces responsible for the formation of the HSA–AML complex. Our findings revealed that AML specifically binds to Sudlow’s site II, located in subdomain IIIA of HSA, and that the complex formed is stabilized using van der Waals hydrogen-bonding and hydrophobic interactions. FRET analysis showed that the distance between AML and Trp214 was optimal for efficient quenching. UV-Vis spectroscopy and circular dichroism indicated minor changes in the structure of HSA after AML binding, and molecular dynamics simulations (MDS) conducted over 100 ns provided additional evidence of stable HSA–AML-complex formation. This study enhances understanding of the interaction between AML and HSA and the mechanism responsible.
Keywords	amiloride ; FRET ; protein–ligand interaction ; human serum albumin ; Organic chemistry ; QD241-441
Subject code	540
Language	English
Publishing date	2023-11-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: A Testimony of the Surgent SARS-CoV-2 in the Immunological Panorama of the Human Host

Rinki Minakshi / Arif Tasleem Jan / Safikur Rahman / Jihoe Kim

Frontiers in Cellular and Infection Microbiology, Vol

2020 Volume 10

Abstract: The resurgence of SARS in the late December of 2019 due to a novel coronavirus, SARS-CoV-2, has shadowed the world with a pandemic. The physiopathology of this virus is very much in semblance with the previously known SARS-CoV and MERS-CoV. However, the ... ...

Abstract	The resurgence of SARS in the late December of 2019 due to a novel coronavirus, SARS-CoV-2, has shadowed the world with a pandemic. The physiopathology of this virus is very much in semblance with the previously known SARS-CoV and MERS-CoV. However, the unprecedented transmissibility of SARS-CoV-2 has been puzzling the scientific efforts. Though the virus harbors much of the genetic and architectural features of SARS-CoV, a few differences acquired during its evolutionary selective pressure is helping the SARS-CoV-2 to establish prodigious infection. Making entry into host the cell through already established ACE-2 receptor concerted with the action of TMPRSS2, is considered important for the virus. During the infection cycle of SARS-CoV-2, the innate immunity witnesses maximum dysregulations in its molecular network causing fatalities in aged, comorbid cases. The overt immunopathology manifested due to robust cytokine storm shows ARDS in severe cases of SARS-CoV-2. A delayed IFN activation gives appropriate time to the replicating virus to evade the host antiviral response and cause disruption of the adaptive response as well. We have compiled various aspects of SARS-CoV-2 in relation to its unique structural features and ability to modulate innate as well adaptive response in host, aiming at understanding the dynamism of infection.
Keywords	SARS-CoV-2 ; receptor binding domain (RBD) ; angiotensin-converting enzyme 2 (ACE-2) ; transmembrane protease serine 2 (TMPRSS2) ; acute respiratory distress syndrome (ARDS) ; cytokine storm ; Microbiology ; QR1-502 ; covid19
Subject code	572
Language	English
Publishing date	2020-10-01T00:00:00Z
Publisher	Frontiers Media S.A.
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Metal ions-induced stability and function of bimetallic human arginase-I, a therapeutically important enzyme

Sadarangani, Vineet / Apurba Kumar Sau / Safikur Rahman

Biochimica et biophysica acta. 2018 Nov., v. 1866, no. 11

2018

Abstract: Recent studies have highlighted the therapeutic importance of bimetallic human arginase-I against hyperargininemia and L-arginine auxotrophic cancers. The longer retention of catalytic activity of the Co2+-enzyme than that of the Mn2+ in human serum is ... ...

Abstract	Recent studies have highlighted the therapeutic importance of bimetallic human arginase-I against hyperargininemia and L-arginine auxotrophic cancers. The longer retention of catalytic activity of the Co2+-enzyme than that of the Mn2+ in human serum is associated with its enhanced therapeutic potential. To understand the basis of this and also to explore the role of a bimetallic center as well as the role of individual metal ions in the stability, we performed a detailed biochemical and biophysical investigation. The thermodynamic and kinetic stabilities of both the holo proteins are found to be significantly higher than the apo form, indicating that an intact bimetallic centre is vital for the enhanced stability of the holo proteins. The Co2+-protein is found to be more stable than that of the Mn2+, which might explain its longer retention of activity observed in the serum. Mutational studies demonstrated that the metal ions are individually crucial for both the enhanced stability and catalytic activity. Furthermore, we investigated the underlying mechanism for the effect of heat activation on the holo protein for higher catalytic activity, which is not yet known for arginases. Our data reveal that heat activation significantly increases the stability of the holo protein through a metal-induced increase in the helical content leading to the formation of a kinetically competent enzyme. Thus, the present study provides an in-depth insight into the significance of heat activation and the role of metal ions in human arginase, which may be useful for better understanding of its therapeutic use.
Keywords	arginase ; arginine ; auxotrophs ; blood serum ; catalytic activity ; heat ; humans ; manganese ; metal ions ; neoplasms ; proteins ; therapeutics
Language	English
Dates of publication	2018-11
Size	p. 1153-1164.
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	2918798-9
ISSN	1878-1454 ; 1570-9639
ISSN (online)	1878-1454
ISSN	1570-9639
DOI	10.1016/j.bbapap.2018.08.006
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Molecular Perspective of Nanoparticle Mediated Therapeutic Targeting in Breast Cancer

Safikur Rahman / Vijay Kumar / Anuj Kumar / Tasduq S. Abdullah / Irfan A. Rather / Arif Tasleem Jan

Biomedicines, Vol 9, Iss 635, p

An Odyssey of Endoplasmic Reticulum Unfolded Protein Response (UPR ER ) and Beyond

2021 Volume 635

Abstract: Breast cancer (BC) is the second most frequent cause of death among women. Representing a complex and heterogeneous type of cancer, its occurrence is attributed by both genetic (gene mutations, e.g., BRCA1, BRCA2) and non-genetic (race, ethnicity, etc.) ... ...

Abstract	Breast cancer (BC) is the second most frequent cause of death among women. Representing a complex and heterogeneous type of cancer, its occurrence is attributed by both genetic (gene mutations, e.g., BRCA1, BRCA2) and non-genetic (race, ethnicity, etc.) risk factors. The effectiveness of available treatment regimens (small molecules, cytotoxic agents, and inhibitors) decreased due to their poor penetration across biological barriers, limited targeting, and rapid body clearance along with their effect on normal resident cells of bone marrow, gastrointestinal tract, and hair follicles. This significantly reduced their clinical outcomes, which led to an unprecedented increase in the number of cases worldwide. Nanomedicine, a nano-formulation of therapeutics, emerged as a versatile delivering module for employment in achieving the effective and target specific delivery of pharmaceutical payloads. Adoption of nanotechnological approaches in delivering therapeutic molecules to target cells ensures not only reduced immune response and toxicity, but increases the stability of therapeutic entities in the systemic circulation that averts their degradation and as such increased extravasations and accumulation via enhanced permeation and the retention (EPR) effect in target tissues. Additionally, nanoparticle (NP)-induced ER stress, which enhances apoptosis and autophagy, has been utilized as a combative strategy in the treatment of cancerous cells. As nanoparticles-based avenues have been capitalized to achieve better efficacy of the new genera of therapeutics with enhanced specificity and safety, the present study is aimed at providing the fundamentals of BC, nanotechnological modules (organic, inorganic, and hybrid) employed in delivering different therapeutic molecules, and mechanistic insights of nano-ER stress induced apoptosis and autophagy with a perspective of exploring this avenue for use in the nano-toxicological studies. Furthermore, the current scenario of USA FDA approved nano-formulations and the future ...
Keywords	breast cancer ; ER stress ; nanotechnology ; nanomedicine ; therapeutics ; Biology (General) ; QH301-705.5
Subject code	610
Language	English
Publishing date	2021-06-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Multi-Spectroscopic Characterization of Human Serum Albumin Binding with Cyclobenzaprine Hydrochloride

Mohammad Hassan Baig / Safikur Rahman / Gulam Rabbani / Mohd Imran / Khurshid Ahmad / Inho Choi

International Journal of Molecular Sciences, Vol 20, Iss 3, p

Insights from Biophysical and In Silico Approaches

2019 Volume 662

Abstract: Cyclobenzaprine hydrochloride (CBH) is a well-known muscle relaxant that is widely used to relieve muscle spasms and other pain associated with acute musculoskeletal conditions. In this study, we elucidated the binding characteristics of this muscle ... ...

Abstract	Cyclobenzaprine hydrochloride (CBH) is a well-known muscle relaxant that is widely used to relieve muscle spasms and other pain associated with acute musculoskeletal conditions. In this study, we elucidated the binding characteristics of this muscle relaxant to human serum albumin (HSA). From a pharmaceutical and biochemical viewpoint, insight into the structure, functions, dynamics, and features of HSA-CBH complex holds great importance. The binding of CBH with this major circulatory transport protein was studied using a combination of biophysical approaches such as UV-VIS absorption, fluorescence quenching, and circular dichroism (CD) spectroscopy. Various in silico techniques, molecular docking and molecular dynamics, were also used to gain deeper insight into the binding. A reduction in the fluorescence intensities of HSA-CBH complex with a constant increase in temperature, revealed the static mode of protein fluorescence quenching upon CBH addition, which confirmed the formation of the HSA-CBH ground state complex. The alteration in the UV-VIS and far-UV CD spectrum indicated changes in both secondary and tertiary structures of HSA upon binding of CBH, further proving CBH binding to HSA. The analysis of thermodynamic parameters ∆H° and ∆S° showed that binding of CBH to HSA was dominated by intermolecular hydrophobic forces. The results of the molecular docking and molecular dynamics simulation studies also confirmed the stability of the complex and supported the experimental results.
Keywords	muscle relaxant ; circular dichroism ; cyclobenzaprine hydrochloride ; esterase-like activity ; human serum albumin ; molecular docking ; molecular dynamics ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
Subject code	540
Language	English
Publishing date	2019-02-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Biology, Pathophysiological Role, and Clinical Implications of Exosomes

Arif Tasleem Jan / Safikur Rahman / Shahanavaj Khan / Sheikh Abdullah Tasduq / Inho Choi

Cells, Vol 8, Iss 2, p

A Critical Appraisal

2019 Volume 99

Abstract: Exosomes are membrane-enclosed entities of endocytic origin, which are generated during the fusion of multivesicular bodies (MVBs) and plasma membranes. Exosomes are released into the extracellular milieu or body fluids; this process was reported for ... ...

Abstract	Exosomes are membrane-enclosed entities of endocytic origin, which are generated during the fusion of multivesicular bodies (MVBs) and plasma membranes. Exosomes are released into the extracellular milieu or body fluids; this process was reported for mesenchymal, epithelial, endothelial, and different immune cells (B-cells and dendritic cells), and was reported to be correlated with normal physiological processes. The compositions and abundances of exosomes depend on their tissue origins and cell types. Exosomes range in size between 30 and 100 nm, and shuttle nucleic acids (DNA, messenger RNAs (mRNAs), microRNAs), proteins, and lipids between donor and target cells. Pathogenic microorganisms also secrete exosomes that modulate the host immune system and influence the fate of infections. Such immune-modulatory effect of exosomes can serve as a diagnostic biomarker of disease. On the other hand, the antigen-presenting and immune-stimulatory properties of exosomes enable them to trigger anti-tumor responses, and exosome release from cancerous cells suggests they contribute to the recruitment and reconstitution of components of tumor microenvironments. Furthermore, their modulation of physiological and pathological processes suggests they contribute to the developmental program, infections, and human diseases. Despite significant advances, our understanding of exosomes is far from complete, particularly regarding our understanding of the molecular mechanisms that subserve exosome formation, cargo packaging, and exosome release in different cellular backgrounds. The present study presents diverse biological aspects of exosomes, and highlights their diagnostic and therapeutic potentials.
Keywords	exosomes ; extracellular transport ; diseases ; secretory vesicles ; stem cells ; Biology (General) ; QH301-705.5
Subject code	610
Language	English
Publishing date	2019-01-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Data on the role of accessible surface area on osmolytes-induced protein stabilization

Safikur Rahman / Syed Ausaf Ali / Asimul Islam / Md. Imtaiyaz Hassan / Faizan Ahmad

Data in Brief, Vol 10, Iss C, Pp 47-

2017 Volume 56

Abstract: This paper describes data related to the research article “Testing the dependence of stabilizing effect of osmolytes on the fractional increase in the accessible surface area on thermal and chemical denaturations of proteins” [1]. Heat- and guanidinium ... ...

Abstract	This paper describes data related to the research article “Testing the dependence of stabilizing effect of osmolytes on the fractional increase in the accessible surface area on thermal and chemical denaturations of proteins” [1]. Heat- and guanidinium chloride (GdmCl)-induced denaturation of three disulfide free proteins (bovine cytochrome c (b-cyt-c), myoglobin (Mb) and barstar) in the presence of different concentrations of methylamines (sarcosine, glycine-betaine (GB) and trimethylamine-N-oxide (TMAO)) was monitored by [ϴ]222, the mean residue ellipticity at 222 nm at pH 7.0. Methylamines belong to a class of osmolytes known to protect proteins from deleterious effect of urea. This paper includes comprehensive thermodynamic data obtained from the heat- and GdmCl-induced denaturations of barstar, b-cyt-c and Mb.
Keywords	Osmolytes ; Methylamines ; Protein stabilization ; Accessible surface area ; Gibbs free energy ; Computer applications to medicine. Medical informatics ; R858-859.7 ; Science (General) ; Q1-390
Language	English
Publishing date	2017-02-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Assessment of Occupational Health Hazards Due to Particulate Matter Originated from Spices

Era Upadhyay / Afnan Ahmad Mohammad AlMass / Nandita Dasgupta / Safikur Rahman / Jihoe Kim / Manali Datta

International Journal of Environmental Research and Public Health, Vol 16, Iss 9, p

2019 Volume 1519

Abstract: Spices have been known for their various health activities; however, they also possess the allergic potential for the respiratory system and the skin as they are fine particulate matter. Persons involved in spice agriculture and food industries are at ... ...

Abstract	Spices have been known for their various health activities; however, they also possess the allergic potential for the respiratory system and the skin as they are fine particulate matter. Persons involved in spice agriculture and food industries are at greater risk since they are exposed to a considerable amount of combustible dust, which may be the cause of fire and explosion and adversely affect the health. These workers may experience allergy, long-term and short-term respiratory issues including occupational asthma, dermatitis, etc. Some spices induce T cell-based inflammatory reaction upon contact recognition of the antigen. Antigen Presenting Cells (APC) on binding to the causative metabolite results in activation of macrophages by allergen cytokine interleukin (IL)-12 and tumor necrosis factor-beta (TNF). Cross-reactivity for protein allergens is another factor which seems to be a significant trigger for the stimulation of allergic reactions. Thus, it was imperative to perform a systematic review along with bioinformatics based representation of some evident allergens has been done to identify the overall conservation of epitopes. In the present manuscript, we have covered a multifold approach, i.e., to categorize the spice particles based on a clear understanding about nature, origin, mechanisms; to assess metabolic reactions of the particles after exposure as well as knowledge on the conditions of exposure along with associated potential health effects. Another aim of this study is to provide some suggestions to prevent and to control the exposure up to some extent.
Keywords	spices ; spice allergens ; spice industry ; occupation ; respiratory health ; Medicine ; R
Subject code	610
Language	English
Publishing date	2019-04-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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