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  1. Article: Dual-targeting CD44 and mucin by hyaluronic acid and 5TR1 aptamer for epirubicin delivery into cancer cells: Synthesis, characterization,

    Jamshidi, Zahra / Dehghan, Reza / Nejabat, Mojgan / Abnous, Khalil / Taghdisi, Seyed Mohammad / Hadizadeh, Farzin

    Heliyon

    2024  Volume 10, Issue 2, Page(s) e24833

    Abstract: One of the revolutionized cancer treatment is active targeting nanomedicines. This study aims to create a dual-targeted drug delivery system for Epirubicin (EPI) to cancer cells. Hyaluronic acid (HA) is the first targeting ligand, and 5TR1 aptamer (5TR1) ...

    Abstract One of the revolutionized cancer treatment is active targeting nanomedicines. This study aims to create a dual-targeted drug delivery system for Epirubicin (EPI) to cancer cells. Hyaluronic acid (HA) is the first targeting ligand, and 5TR1 aptamer (5TR1) is the second targeting ligand to guide the dual-targeted drug delivery system to the cancer cells. HA is bound to highly expressed receptors like CD44 on cancer cells. 5TR1, DNA aptamer, is capable of recognizing MUC1 glycoprotein, which is overexpressed in cancer cells. The process involved binding EPI and 5TR1 to HA using adipic acid dihydrazide (AA) as a linker. The bond between the components was confirmed using
    Language English
    Publishing date 2024-01-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e24833
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  2. Article ; Online: Molecular dynamics simulation as a promising approach for computational study of liquid crystal-based aptasensors.

    Zahraee, Hamed / Arab, Seyed Shahriar / Khoshbin, Zahra / Taghdisi, Seyed Mohammad / Abnous, Khalil

    Journal of biomolecular structure & dynamics

    2024  , Page(s) 1–13

    Abstract: As a potent computational methodology, molecular dynamics (MD) simulation provides advantageous knowledge about biological compounds from the molecular viewpoint. In particular, MD simulation gives exact information about aptamer strands, such as the ... ...

    Abstract As a potent computational methodology, molecular dynamics (MD) simulation provides advantageous knowledge about biological compounds from the molecular viewpoint. In particular, MD simulation gives exact information about aptamer strands, such as the short synthetic oligomers, their orientation, binding sites, folding-unfolding state, and conformational re-arrangement. Also, the effect of the different chemicals and biochemicals as the components of aptamer-based sensors (aptasensors) on the aptamer-target interaction can be investigated by MD simulation. Liquid crystals (LCs) as soft substances with characteristics of both solid anisotropy and liquid fluidity are new candidates for designing label-free aptasensors. To now, diverse aptasensors have been developed experimentally based on the optical anisotropy, fluidity, and long-range orientational order of LCs. Here, we represent a computational model of an LC-based aptasensor through a detailed MD simulation study. The different parameters are defined and studied to achieve a comprehensive understanding of the computational design of the LC-based aptasensor, including the density of LCs, their orientation angle, and lognormal distribution in the absence and presence of aptamer strands, both aptamer and target molecules with various concentrations, and interfering substance. As a case study, the tobramycin antibiotic is considered the target molecule for the computational model of the LC-based aptasensor.Communicated by Ramaswamy H. Sarma.
    Language English
    Publishing date 2024-02-12
    Publishing country England
    Document type Journal Article
    ZDB-ID 49157-3
    ISSN 1538-0254 ; 0739-1102
    ISSN (online) 1538-0254
    ISSN 0739-1102
    DOI 10.1080/07391102.2024.2315326
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  3. Article ; Online: CRISPR-Cas12a-based colorimetric aptasensor for aflatoxin M1 detection based on oxidase-mimicking activity of flower-like MnO

    Esmaelpourfarkhani, Masoomeh / Ramezani, Mohammad / Alibolandi, Mona / Abnous, Khalil / Taghdisi, Seyed Mohammad

    Talanta

    2024  Volume 271, Page(s) 125729

    Abstract: Given the highly mutagenic and carcinogenic nature of Aflatoxin M1 (AFM1), the quantity assessment of AFM1 residues in milk and dairy products is necessary to maintain consumer health and food safety. Herein, CRISPR-Cas12a-based colorimetric aptasensor ... ...

    Abstract Given the highly mutagenic and carcinogenic nature of Aflatoxin M1 (AFM1), the quantity assessment of AFM1 residues in milk and dairy products is necessary to maintain consumer health and food safety. Herein, CRISPR-Cas12a-based colorimetric aptasensor was developed using the catalytic activity of flower-like nanozymes of MnO
    MeSH term(s) Aflatoxin M1/analysis ; Oxidoreductases ; CRISPR-Cas Systems ; Colorimetry ; Manganese Compounds ; Biosensing Techniques/methods ; Oxides
    Chemical Substances Aflatoxin M1 (6795-23-9) ; Oxidoreductases (EC 1.-) ; Manganese Compounds ; Oxides
    Language English
    Publishing date 2024-01-29
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1500969-5
    ISSN 1873-3573 ; 0039-9140
    ISSN (online) 1873-3573
    ISSN 0039-9140
    DOI 10.1016/j.talanta.2024.125729
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  4. Article ; Online: Signal-off nanozyme-based colorimetric aptasensor for sensitive detection of ampicillin using MnO

    Esmaelpourfarkhani, Masoomeh / Ramezani, Mohammad / Alibolandi, Mona / Abnous, Khalil / Taghdisi, Seyed Mohammad

    Analytical biochemistry

    2024  Volume 687, Page(s) 115459

    Abstract: The combination of nanomaterials possessing distinct characteristics and the precision of aptamers facilitates the creation of biosensors that exhibit exceptional selectivity and sensitivity. In this manuscript, we present a highly sensitive aptasensor ... ...

    Abstract The combination of nanomaterials possessing distinct characteristics and the precision of aptamers facilitates the creation of biosensors that exhibit exceptional selectivity and sensitivity. In this manuscript, we present a highly sensitive aptasensor that utilizes the distinctive characteristics of MnO
    MeSH term(s) Humans ; Gold ; Limit of Detection ; Metal Nanoparticles ; Colorimetry/methods ; Manganese Compounds ; Aptamers, Nucleotide ; Oxides ; Biosensing Techniques/methods ; Ampicillin
    Chemical Substances Gold (7440-57-5) ; Manganese Compounds ; Aptamers, Nucleotide ; Oxides ; Ampicillin (7C782967RD)
    Language English
    Publishing date 2024-01-04
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1110-1
    ISSN 1096-0309 ; 0003-2697
    ISSN (online) 1096-0309
    ISSN 0003-2697
    DOI 10.1016/j.ab.2024.115459
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  5. Article ; Online: A label-free aptasensor for colorimetric detection of food toxin: Mediation of catalytically active gold nanozymes and smartphone imaging strategy.

    Khoshbin, Zahra / Moeenfard, Marzieh / Abnous, Khalil / Taghdisi, Seyed Mohammad

    Food chemistry

    2023  Volume 433, Page(s) 137355

    Abstract: A portable colorimetric aptasensor was developed on the surface of a plastic sheet for on-site detection of acrylamide. The mechanism of aptasensor is based on the disruption of the aptamer complex with its complementary strand on the sensing zone, and ... ...

    Abstract A portable colorimetric aptasensor was developed on the surface of a plastic sheet for on-site detection of acrylamide. The mechanism of aptasensor is based on the disruption of the aptamer complex with its complementary strand on the sensing zone, and subsequently, the catalytic activity of gold nanoparticles (AuNPs) for the reduction process of 4-nitrophenol (4-NP) in the presence of sodium borohydride (NaBH
    MeSH term(s) Colorimetry/methods ; Gold ; Smartphone ; Metal Nanoparticles ; Aptamers, Nucleotide ; Acrylamides ; Biosensing Techniques/methods ; Limit of Detection
    Chemical Substances Gold (7440-57-5) ; Aptamers, Nucleotide ; Acrylamides
    Language English
    Publishing date 2023-09-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 243123-3
    ISSN 1873-7072 ; 0308-8146
    ISSN (online) 1873-7072
    ISSN 0308-8146
    DOI 10.1016/j.foodchem.2023.137355
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  6. Article ; Online: Targeted co-delivery of FOXM1 aptamer and DOX by nucleolin aptamer-functionalized pH-responsive biocompatible nanodelivery system to enhance therapeutic efficacy against breast cancer: in vitro and in vivo.

    Masoudi, Mina / Taghdisi, Seyed Mohammad / Hashemitabar, Gholamreza / Abnous, Khalil

    Drug delivery and translational research

    2023  Volume 14, Issue 6, Page(s) 1535–1550

    Abstract: Targeted nanodelivery systems offer a promising approach to cancer treatment, including the most common cancer in women, breast cancer. In this study, a targeted, pH-responsive, and biocompatible nanodelivery system based on nucleolin aptamer- ... ...

    Abstract Targeted nanodelivery systems offer a promising approach to cancer treatment, including the most common cancer in women, breast cancer. In this study, a targeted, pH-responsive, and biocompatible nanodelivery system based on nucleolin aptamer-functionalized biogenic titanium dioxide nanoparticles (TNP) was developed for targeted co-delivery of FOXM1 aptamer and doxorubicin (DOX) to improve breast cancer therapy. The developed targeted nanodelivery system exhibited almost spherical morphology with 124.89 ± 12.97 nm in diameter and zeta potential value of - 23.78 ± 3.66 mV. FOXM1 aptamer and DOX were loaded into the nanodelivery system with an efficiency of 100% and 97%, respectively. Moreover, the targeted nanodelivery system demonstrated excellent stability in serum and a pH-responsive sustained drug release profile over a period of 240 h following Higuchi kinetic and Fickian diffusion mechanism. The in vitro cytotoxicity experiments demonstrated that the targeted nanodelivery system provided selective internalization and strong growth inhibition effects of about 45 and 51% against nucleolin-positive 4T1 and MCF-7 breast cancer cell lines. It is noteworthy that these phenomena were not observed in nucleolin-negative cells (CHO). The preclinical studies revealed that a single-dose intravenous injection of the targeted nanodelivery system into 4T1-bearing mice inhibited tumor growth by 1.7- and 1.4-fold more efficiently than the free drug and the non-targeted nanodelivery system, respectively. Our results suggested that the developed innovative targeted pH-responsive biocompatible nanodelivery system could serve as a prospectively potential platform to improve breast cancer treatment.
    MeSH term(s) Animals ; Nucleolin ; Doxorubicin/administration & dosage ; Doxorubicin/chemistry ; Doxorubicin/pharmacokinetics ; Doxorubicin/pharmacology ; Aptamers, Nucleotide/chemistry ; Aptamers, Nucleotide/administration & dosage ; Female ; Phosphoproteins/administration & dosage ; Humans ; Hydrogen-Ion Concentration ; RNA-Binding Proteins/administration & dosage ; Breast Neoplasms/drug therapy ; Forkhead Box Protein M1 ; MCF-7 Cells ; Drug Liberation ; Mice, Inbred BALB C ; Mice ; Cell Line, Tumor ; Antibiotics, Antineoplastic/administration & dosage ; Antibiotics, Antineoplastic/pharmacokinetics ; Antibiotics, Antineoplastic/chemistry ; Drug Delivery Systems ; Nanoparticles/chemistry ; Nanoparticles/administration & dosage
    Chemical Substances Nucleolin ; Doxorubicin (80168379AG) ; Aptamers, Nucleotide ; Phosphoproteins ; RNA-Binding Proteins ; Forkhead Box Protein M1 ; Antibiotics, Antineoplastic ; FOXM1 protein, human
    Language English
    Publishing date 2023-12-31
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2590155-2
    ISSN 2190-3948 ; 2190-393X
    ISSN (online) 2190-3948
    ISSN 2190-393X
    DOI 10.1007/s13346-023-01495-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Three-way junction skeleton biosensors based on aptamers, DNAzymes, and DNA hybridization probes

    Zahraee, Hamed / Khoshbin, Zahra / Mohammadi, Fatemeh / Mashreghi, Mansour / Abnous, Khalil / Taghdisi, Seyed Mohammad

    Trends in Analytical Chemistry. 2023 Aug., v. 165 p.117160-

    2023  

    Abstract: Nucleic acids can be used as building blocks for highly regular and complex structures at the nanoscale due to their inherent self-assembly and programmability resulting from intra- and inter-molecular interactions. Three-way junctions (TWJs) structure ... ...

    Abstract Nucleic acids can be used as building blocks for highly regular and complex structures at the nanoscale due to their inherent self-assembly and programmability resulting from intra- and inter-molecular interactions. Three-way junctions (TWJs) structure is recognized as the smallest type of junction in nucleic acids. To form TWJ nanostructures, three DNA or RNA strands with complementary segments at each end are hybridized and form a Y-shaped structure. TWJ skeletons, having three independent arms, provide multifunctional sites for beneficial amplification, recognition, and signaling purposes in specific biomolecular nanoarchitecture. In this study, we represent the superiority aspects on the achievements of the biosensors with the cooperation of DNA/RNA TWJ nanoskeletons for monitoring different targets. Moreover, some discussions are declared to achieve a perspective for developing promising TWJ-based aptasensors in the future. This in-depth study can open a constructive way for commercializing and miniaturizing TWJ-tuned aptasensors as user-friendly lab-on-chip sensing devices.
    Keywords DNA ; RNA ; analytical chemistry ; aptasensors ; lab-on-a-chip technology ; nanomaterials ; nucleic acid hybridization ; oligonucleotides ; skeleton ; DNA origami ; Three-way junction ; Signal amplification ; Multifunctional ; Nanostructure ; Aptasensor
    Language English
    Dates of publication 2023-08
    Publishing place Elsevier B.V.
    Document type Article ; Online
    ZDB-ID 2014041-1
    ISSN 0165-9936
    ISSN 0165-9936
    DOI 10.1016/j.trac.2023.117160
    Database NAL-Catalogue (AGRICOLA)

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  8. Article: Nano-gold mediated aptasensor for colorimetric monitoring of acrylamide: Smartphone readout strategy for on-site food control

    Khoshbin, Zahra / Moeenfard, Marzieh / Abnous, Khalil / Taghdisi, Seyed Mohammad

    Food chemistry. 2023 Jan. 15, v. 399

    2023  

    Abstract: A simple aptasensor is embedded in the internal surface of a micropipette tip as the aptasensor substrate for the label-free monitoring of acrylamide. The aptasensor is based on the formation of the triple-helix molecular switch (THMS) structure of the ... ...

    Abstract A simple aptasensor is embedded in the internal surface of a micropipette tip as the aptasensor substrate for the label-free monitoring of acrylamide. The aptasensor is based on the formation of the triple-helix molecular switch (THMS) structure of the DNA strands that induces the salt-enforced aggregation of gold nanoparticles (AuNPs). A smartphone imaging readout-based strategy is applied to quantify acrylamide. The developed aptasensor is novel for the naked-eye monitoring of the target through the color change of the solution inside the micropipette tip. The colorimetric aptasensor detects acrylamide in the concentration range of 0.05–200 nmol L⁻¹ and at the trace level of 0.038 nmol L⁻¹ with the comparable selectivity. The aptasensor can successfully quantify acrylamide in the chips, coffee, and bread samples with recoveries range from 92 to 102 %. The designed aptasensor paves an efficient device for the portable, on-site, facile, and real-time target sensing, superior for food safety control.
    Keywords DNA ; acrylamides ; aptasensors ; breads ; color ; colorimetry ; food chemistry ; food safety ; mobile telephones ; nanogold
    Language English
    Dates of publication 2023-0115
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 243123-3
    ISSN 1873-7072 ; 0308-8146
    ISSN (online) 1873-7072
    ISSN 0308-8146
    DOI 10.1016/j.foodchem.2022.133983
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  9. Article ; Online: Self-targeted hyaluronic acid-b-poly (β-amino ester) pH-switchable polymersome for guided doxorubicin delivery to metastatic breast cancer

    Borhaninia, Morvarid / Zahiri, Mahsa / Abnous, Khalil / Taghdisi, Seyed Mohammad / Ramaz̤ānī, Muḥammad / Alibolandi, Mona

    International Journal of Biological Macromolecules. 2023 July 18, p.125882-

    2023  , Page(s) 125882–

    Abstract: In this study, a targeted pH-sensitive polymersome incorporating doxorubicin (DOX) was manufactured implementing diblock copolymer of hyaluronic acid-b-pPoly (β-amino ester) (HA-PBAE). The hydrophilic DOX was loaded into the aqueous compartment of HA- ... ...

    Abstract In this study, a targeted pH-sensitive polymersome incorporating doxorubicin (DOX) was manufactured implementing diblock copolymer of hyaluronic acid-b-pPoly (β-amino ester) (HA-PBAE). The hydrophilic DOX was loaded into the aqueous compartment of HA-PBAE polymersomal structure during nanoprecipitation process with 60 % ± 3.0 entrapment efficiency (EE%) and 5.3 % ± 0.2 loading content (LC%) while demonstrating spherical morphology with size of 196 ± 3.8 nm and PDI of 0.3. The prepared platform (DOX-HA-PBAE) illustrated accelerated DOX release in acidic pH 5.4, and showed significantly higher cytotoxicity and cellular internalization in comparison with free DOX against 4T1 cell line (CD44 positive cell). In contrast, no significant growth inhibition was observed in CHO cell line (CD44 negative cell). Furthermore, DOX-HA-PBAE platform displayed higher therapeutic efficacy, favorable tumor accumulation and lower systemic toxicity in comparison with free DOX based on obtained experimental data in ectopic 4T1 tumor model in BALB/c Female mice in terms of tumor growth rate, survival rate, body weight loss, ex vivo biodistribution and pathological evaluations. The obtained results demonstrated that DOX-HA-PBAE polymersomes have potential to be used in metastatic breast cancer therapy with promising characteristics in terms of tumor growth suppression and safety profile.
    Keywords body weight changes ; breast neoplasms ; cancer therapy ; cell lines ; composite polymers ; cytotoxicity ; doxorubicin ; females ; growth retardation ; hydrophilicity ; metastasis ; models ; nanotechnology ; pH ; survival rate ; pH sensitive ; Hyaluronic acid ; Poly (β-amino ester) ; Targeted drug delivery ; Metastatic breast cancer
    Language English
    Dates of publication 2023-0718
    Publishing place Elsevier B.V.
    Document type Article ; Online
    Note Pre-press version
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2023.125882
    Database NAL-Catalogue (AGRICOLA)

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  10. Article ; Online: Nano-gold mediated aptasensor for colorimetric monitoring of acrylamide: Smartphone readout strategy for on-site food control.

    Khoshbin, Zahra / Moeenfard, Marzieh / Abnous, Khalil / Taghdisi, Seyed Mohammad

    Food chemistry

    2022  Volume 399, Page(s) 133983

    Abstract: A simple aptasensor is embedded in the internal surface of a micropipette tip as the aptasensor substrate for the label-free monitoring of acrylamide. The aptasensor is based on the formation of the triple-helix molecular switch (THMS) structure of the ... ...

    Abstract A simple aptasensor is embedded in the internal surface of a micropipette tip as the aptasensor substrate for the label-free monitoring of acrylamide. The aptasensor is based on the formation of the triple-helix molecular switch (THMS) structure of the DNA strands that induces the salt-enforced aggregation of gold nanoparticles (AuNPs). A smartphone imaging readout-based strategy is applied to quantify acrylamide. The developed aptasensor is novel for the naked-eye monitoring of the target through the color change of the solution inside the micropipette tip. The colorimetric aptasensor detects acrylamide in the concentration range of 0.05-200 nmol L
    MeSH term(s) Acrylamide ; Aptamers, Nucleotide/chemistry ; Biosensing Techniques/methods ; Colorimetry/methods ; Gold ; Limit of Detection ; Metal Nanoparticles/chemistry ; Smartphone
    Chemical Substances Aptamers, Nucleotide ; Acrylamide (20R035KLCI) ; Gold (7440-57-5)
    Language English
    Publishing date 2022-08-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 243123-3
    ISSN 1873-7072 ; 0308-8146
    ISSN (online) 1873-7072
    ISSN 0308-8146
    DOI 10.1016/j.foodchem.2022.133983
    Database MEDical Literature Analysis and Retrieval System OnLINE

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