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  1. Article ; Online: An imidazole based H-Phe-Phe-NH

    Skogh, Anna / Lesniak, Anna / Sköld, Christian / Karlgren, Maria / Gaugaz, Fabienne Z / Svensson, Richard / Diwakarla, Shanti / Jonsson, Anna / Fransson, Rebecca / Nyberg, Fred / Hallberg, Mathias / Sandström, Anja

    Bioorganic & medicinal chemistry letters

    2018  Volume 28, Issue 14, Page(s) 2446–2450

    Abstract: The dipeptide amide H-Phe-Phe-NH ...

    Abstract The dipeptide amide H-Phe-Phe-NH
    MeSH term(s) Amides/blood ; Amides/chemistry ; Amides/pharmacology ; Animals ; Cell Death/drug effects ; Cell Survival/drug effects ; Cells, Cultured ; Dipeptides/blood ; Dipeptides/chemistry ; Dipeptides/pharmacology ; Dose-Response Relationship, Drug ; Hyperalgesia/drug therapy ; Imidazoles/blood ; Imidazoles/chemistry ; Imidazoles/pharmacology ; Injections, Intraperitoneal ; Mice ; Molecular Structure ; Peptidomimetics/blood ; Peptidomimetics/chemistry ; Peptidomimetics/pharmacology ; Rats ; Spinal Nerves/drug effects ; Spinal Nerves/injuries
    Chemical Substances Amides ; Dipeptides ; Imidazoles ; Peptidomimetics
    Language English
    Publishing date 2018-06-15
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1063195-1
    ISSN 1464-3405 ; 0960-894X
    ISSN (online) 1464-3405
    ISSN 0960-894X
    DOI 10.1016/j.bmcl.2018.06.009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Discovery of 3-Cyano- N-(3-(1-isobutyrylpiperidin-4-yl)-1-methyl-4-(trifluoromethyl)-1 H-pyrrolo[2,3- b]pyridin-5-yl)benzamide: A Potent, Selective, and Orally Bioavailable Retinoic Acid Receptor-Related Orphan Receptor C2 Inverse Agonist.

    Schnute, Mark E / Wennerstål, Mattias / Alley, Jennifer / Bengtsson, Martin / Blinn, James R / Bolten, Charles W / Braden, Timothy / Bonn, Tomas / Carlsson, Bo / Caspers, Nicole / Chen, Ming / Choi, Chulho / Collis, Leon P / Crouse, Kimberly / Färnegårdh, Mathias / Fennell, Kimberly F / Fish, Susan / Flick, Andrew C / Goos-Nilsson, Annika /
    Gullberg, Hjalmar / Harris, Peter K / Heasley, Steven E / Hegen, Martin / Hromockyj, Alexander E / Hu, Xiao / Husman, Bolette / Janosik, Tomasz / Jones, Peter / Kaila, Neelu / Kallin, Elisabet / Kauppi, Björn / Kiefer, James R / Knafels, John / Koehler, Konrad / Kruger, Lars / Kurumbail, Ravi G / Kyne, Robert E / Li, Wei / Löfstedt, Joakim / Long, Scott A / Menard, Carol A / Mente, Scot / Messing, Dean / Meyers, Marvin J / Napierata, Lee / Nöteberg, Daniel / Nuhant, Philippe / Pelc, Matthew J / Prinsen, Michael J / Rhönnstad, Patrik / Backström-Rydin, Eva / Sandberg, Johnny / Sandström, Maria / Shah, Falgun / Sjöberg, Maria / Sundell, Aron / Taylor, Alexandria P / Thorarensen, Atli / Trujillo, John I / Trzupek, John D / Unwalla, Ray / Vajdos, Felix F / Weinberg, Robin A / Wood, David C / Xing, Li / Zamaratski, Edouard / Zapf, Christoph W / Zhao, Yajuan / Wilhelmsson, Anna / Berstein, Gabriel

    Journal of medicinal chemistry

    2018  Volume 61, Issue 23, Page(s) 10415–10439

    Abstract: ... trifluoromethyl)-1 H-pyrrolo[2,3- b]pyridin-5-yl)benzamide as a potent and selective RORC2 inverse agonist ...

    Abstract The nuclear hormone receptor retinoic acid receptor-related orphan C2 (RORC2, also known as RORγt) is a promising target for the treatment of autoimmune diseases. A small molecule, inverse agonist of the receptor is anticipated to reduce production of IL-17, a key proinflammatory cytokine. Through a high-throughput screening approach, we identified a molecule displaying promising binding affinity for RORC2, inhibition of IL-17 production in Th17 cells, and selectivity against the related RORA and RORB receptor isoforms. Lead optimization to improve the potency and metabolic stability of this hit focused on two key design strategies, namely, iterative optimization driven by increasing lipophilic efficiency and structure-guided conformational restriction to achieve optimal ground state energetics and maximize receptor residence time. This approach successfully identified 3-cyano- N-(3-(1-isobutyrylpiperidin-4-yl)-1-methyl-4-(trifluoromethyl)-1 H-pyrrolo[2,3- b]pyridin-5-yl)benzamide as a potent and selective RORC2 inverse agonist, demonstrating good metabolic stability, oral bioavailability, and the ability to reduce IL-17 levels and skin inflammation in a preclinical in vivo animal model upon oral administration.
    MeSH term(s) Administration, Oral ; Animals ; Biological Availability ; Drug Design ; Drug Evaluation, Preclinical ; Drug Inverse Agonism ; Humans ; Mice ; Nuclear Receptor Subfamily 1, Group F, Member 3/agonists ; Pyridines/administration & dosage ; Pyridines/pharmacokinetics ; Pyridines/pharmacology ; Th17 Cells/drug effects ; Th17 Cells/metabolism
    Chemical Substances Nuclear Receptor Subfamily 1, Group F, Member 3 ; Pyridines
    Language English
    Publishing date 2018-09-09
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 218133-2
    ISSN 1520-4804 ; 0022-2623
    ISSN (online) 1520-4804
    ISSN 0022-2623
    DOI 10.1021/acs.jmedchem.8b00392
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Mechanistic investigations of anaerobic sulfatase-maturating enzyme: direct Cbeta H-atom abstraction catalyzed by a radical AdoMet enzyme.

    Benjdia, Alhosna / Leprince, Jérôme / Sandström, Corine / Vaudry, Hubert / Berteau, Olivier

    Journal of the American Chemical Society

    2009  Volume 131, Issue 24, Page(s) 8348–8349

    Abstract: ... deoxyadenosyl radical to catalyze direct H-atom abstraction from the substrate. We thus established that anSMEs ... are the first radical AdoMet enzymes catalyzing a post-translational modification involving C(beta) H ...

    Abstract Sulfatases are unique in requiring an essential post-translational modification of a critical active-site cysteinyl or seryl residue to 3-oxoalanine usually called C alpha-formylglycine (FGly). This post-translational modification is catalyzed anaerobically by anaerobic Sulfatase Maturating Enzyme (anSME), a member of the radical AdoMet superfamily. Using a new labeled substrate, we demonstrate that anSME uses a 5'-deoxyadenosyl radical to catalyze direct H-atom abstraction from the substrate. We thus established that anSMEs are the first radical AdoMet enzymes catalyzing a post-translational modification involving C(beta) H-atom abstraction from an active site cysteinyl or seryl residue. This mechanistic study allowed us to decipher the first steps of the mechanism of this new radical AdoMet enzyme family.
    MeSH term(s) Alanine/analogs & derivatives ; Alanine/chemistry ; Alanine/metabolism ; Anaerobiosis ; Catalysis ; Clostridium perfringens/enzymology ; Deoxyadenosines/chemistry ; Deoxyadenosines/metabolism ; Glycine/analogs & derivatives ; Glycine/chemistry ; Glycine/metabolism ; Hydrogen/chemistry ; Hydrogen/metabolism ; Nuclear Magnetic Resonance, Biomolecular ; S-Adenosylmethionine/chemistry ; S-Adenosylmethionine/metabolism ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization ; Sulfatases/chemistry ; Sulfatases/metabolism
    Chemical Substances Deoxyadenosines ; 5'-deoxyadenosine (4754-39-6) ; C(alpha)-formylglycine (5735-66-0) ; S-Adenosylmethionine (7LP2MPO46S) ; Hydrogen (7YNJ3PO35Z) ; Sulfatases (EC 3.1.6.-) ; Alanine (OF5P57N2ZX) ; Glycine (TE7660XO1C)
    Language English
    Publishing date 2009-06-24
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/ja901571p
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Aminocarbonylation of 4-iodo-1H-imidazoles with an amino acid amide nucleophile: synthesis of constrained H-Phe-Phe-NH2 analogues.

    Skogh, Anna / Fransson, Rebecca / Sköld, Christian / Larhed, Mats / Sandström, Anja

    The Journal of organic chemistry

    2013  Volume 78, Issue 23, Page(s) 12251–12256

    Abstract: ... exemplified by the synthesis of constrained H-Phe-Phe-NH2 analogues. ...

    Abstract A simple and an expedient process to prepare 5-aryl-1-benzyl-1H-imidazole-4-carboxamides by the aminocarbonylation of 5-aryl-4-iodo-1H-imidazoles using ex situ generation of CO from Mo(CO)6 with an amino acid amide nucleophile is reported. Furthermore, a microwave-assisted protocol for the direct C-5 arylation of 1-benzyl-1H-imidazole and a regioselective C-4 iodination method to acquire starting material for our aminocarbonylation are presented. The method can be used to prepare imidazole based peptidomimetics, herein exemplified by the synthesis of constrained H-Phe-Phe-NH2 analogues.
    MeSH term(s) Amides/chemistry ; Amino Acids/chemistry ; Imidazoles/chemistry ; Molecular Structure ; Peptide Fragments/chemical synthesis ; Peptide Fragments/chemistry
    Chemical Substances Amides ; Amino Acids ; Imidazoles ; Peptide Fragments
    Language English
    Publishing date 2013-12-06
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 123490-0
    ISSN 1520-6904 ; 0022-3263
    ISSN (online) 1520-6904
    ISSN 0022-3263
    DOI 10.1021/jo4020613
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Crossroads at the Origin of Prebiotic Chemical Complexity: Hydrogen Cyanide Product Diversification.

    Sandström, Hilda / Rahm, Martin

    The journal of physical chemistry. A

    2023  Volume 127, Issue 20, Page(s) 4503–4510

    Abstract: Products of hydrogen cyanide (HCN) reactivity are suspected to play important roles in astrochemistry and, possibly, the origin of life. The composition, chemical structure, and mechanistic details for formation of products from HCN's self-reactions have, ...

    Abstract Products of hydrogen cyanide (HCN) reactivity are suspected to play important roles in astrochemistry and, possibly, the origin of life. The composition, chemical structure, and mechanistic details for formation of products from HCN's self-reactions have, however, proven elusive for decades. Here, we elucidate base-catalyzed reaction mechanisms for the formation of diaminomaleonitrile and polyimine in liquid HCN using ab initio molecular dynamics simulations. Both materials are proposed as key intermediates for driving further chemical evolution. The formation of these materials is predicted to proceed at similar rates, thereby offering an explanation of how HCN's self-reactions can diversify quickly under kinetic control. Knowledge of these reaction routes provides a basis for rationalizing subsequent reactivity in astrochemical environments such as on Saturn's moon Titan, in the subsurface of comets, in exoplanet atmospheres, and on the early Earth.
    Language English
    Publishing date 2023-05-11
    Publishing country United States
    Document type Journal Article
    ISSN 1520-5215
    ISSN (online) 1520-5215
    DOI 10.1021/acs.jpca.3c01504
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Latency of Plasma Membrane H-ATPase in Vesicles Isolated by Aqueous Phase Partitioning : Increased substrate Accessibility or Enzyme Activation.

    Sandstrom, R P / Deboer, A H / Lomax, T L / Cleland, R E

    Plant physiology

    2006  Volume 85, Issue 3, Page(s) 693–698

    Abstract: The properties of the plasma membrane H(+)-ATPase and the cause of its latency have been studied ...

    Abstract The properties of the plasma membrane H(+)-ATPase and the cause of its latency have been studied using a highly purified plasma membrane fraction from oat (Avena sativa L., cv Victory) roots, prepared by aqueous two-phase partitioning. The ATPase has a maximum specific activity (at 37 degrees C) in excess of 4 micromoles inorganic phosphate per milligram protein per minute in the presence of nondenaturing surfactants. It is inhibited by more than 90% by vanadate, is specific for ATP, has a pH optimum of 6.5, and is stimulated more than 4-fold by 50 millimolar K(+) in the presence of low levels of the nondenaturing surfactants Triton X-100 and lysolecithin. This ;latent' activity is usually explained as being a result of the inability of ATP to reach the ATPase in right-side out, sealed vesicles, until they are disrupted by surfactants. Consistent with this idea, trypsin digestion significantly inhibited the ATPase only in the presence of the surfactants. Electron spin resonance spectroscopy volume measurements confirmed that surfactant-free vesicles were mostly sealed to molecules similar to ATP. However, the Triton to protein ratio required to disrupt vesicle integrity completely is 10-fold less than that needed to promote maximum ATPase activity. We propose that plasma membrane ATPase activation is due not solely to vesicle disruption and accessibility of ATP to the ATPase but to the surfactants activating the ATPase by altering the lipid environment in its vicinity or by removing an inhibitory subunit.
    Language English
    Publishing date 2006-04-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208914-2
    ISSN 1532-2548 ; 0032-0889
    ISSN (online) 1532-2548
    ISSN 0032-0889
    DOI 10.1104/pp.85.3.693
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: The role of trade in the greenhouse gas footprints of EU diets

    Sandström, Vilma / Valin, Hugo / Krisztin, Tamás / Havlík, Petr / Kastner, Thomas

    Global food security, 19:48-55

    2018  

    Abstract: International trade presents a challenge for measuring the greenhouse gas (GHG) emission footprint of human diets, because imported food is produced with different production efficiencies and sourcing regions differ in land use histories. We analyze how ... ...

    Institution Senckenberg Biodiversität und Klima Forschungszentrum
    Abstract International trade presents a challenge for measuring the greenhouse gas (GHG) emission footprint of human diets, because imported food is produced with different production efficiencies and sourcing regions differ in land use histories. We analyze how trade and countries of origin impact GHG footprint calculation for EU food consumption. We find that food consumption footprints can differ considerably between the EU countries with estimates varying from 610 to 1460 CO2-eq. cap−1 yr−1. These estimates include the GHG emissions from primary production, international trade and land use change. The share of animal products in the diet is the most important factor determining the footprint of food consumption. Embedded land use change in imports also plays a major role. Transition towards more plant-based diets has a great potential for climate change mitigation.
    Keywords Climate change ; Greenhouse gas emissions accounting ; Food consumption ; International trade ; Land use change
    Language English
    Document type Article
    Database Repository for Life Sciences

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  8. Article ; Online: Constrained H-Phe-Phe-NH2 analogues with high affinity to the substance P 1-7 binding site and with improved metabolic stability and cell permeability.

    Fransson, Rebecca / Sköld, Christian / Kratz, Jadel M / Svensson, Richard / Artursson, Per / Nyberg, Fred / Hallberg, Mathias / Sandström, Anja

    Journal of medicinal chemistry

    2013  Volume 56, Issue 12, Page(s) 4953–4965

    Abstract: We recently reported the discovery of H-Phe-Phe-NH2 as a small and high affinity ligand ... for the substance P 1-7 (SP(1-7), H-Arg-Pro-Lys-Pro-Gln-Gln-Phe-OH) specific binding site and its intriguing ability ... of modified H-Phe-Phe-NH2 analogues is presented together with their potential active uptake by PEPT1 ...

    Abstract We recently reported the discovery of H-Phe-Phe-NH2 as a small and high affinity ligand for the substance P 1-7 (SP(1-7), H-Arg-Pro-Lys-Pro-Gln-Gln-Phe-OH) specific binding site and its intriguing ability to reduce neuropathic pain. With the overall aim to develop stable and orally bioavailable SP(1-7) mimetics, the dipeptide was chosen as a lead compound. Herein the structure-activity relationship (SAR) of a set of modified H-Phe-Phe-NH2 analogues is presented together with their potential active uptake by PEPT1 transporter, intestinal permeability, and metabolic stability. Local constraints via peptide backbone methylation or preparation of cyclized analogues based on pyrrolidine were evaluated and were shown to significantly improve the in vitro pharmacokinetic properties. The SAR was rationalized by deriving a plausible binding pose for the high affinity ligands. Rigidification using a 3-phenylpyrrolidine moiety in the C-terminal of H-Phe-Phe-NH2 resulted in high affinity and improved intrinsic clearance and intestinal epithelial permeability.
    MeSH term(s) Binding Sites ; Dipeptides/chemistry ; Dipeptides/metabolism ; Drug Stability ; Humans ; Models, Molecular ; Peptide Fragments/chemistry ; Peptide Fragments/metabolism ; Permeability ; Protein Binding ; Protein Conformation ; Substance P/chemistry ; Substance P/metabolism
    Chemical Substances Dipeptides ; Peptide Fragments ; phenylalanylphenylalanine (2577-40-4) ; Substance P (33507-63-0) ; substance P (1-7) (72226-88-1)
    Language English
    Publishing date 2013-06-27
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 218133-2
    ISSN 1520-4804 ; 0022-2623
    ISSN (online) 1520-4804
    ISSN 0022-2623
    DOI 10.1021/jm400209h
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Role of patient characteristics in adherence to first-line treatment guidelines in breast, lung and prostate cancer: insights from the Nordic healthcare system.

    Sandström, Niclas / Leppälä, Emilia / Jekunen, Antti / Johansson, Mikael / Andersén, Heidi

    BMJ open

    2024  Volume 14, Issue 4, Page(s) e084689

    Abstract: Objectives: This study investigates the influence of socioeconomic status, health literacy, and numeracy on treatment decisions and the occurrence of adverse events in patients with breast, lung, and prostate cancer within a Nordic healthcare setting.!## ...

    Abstract Objectives: This study investigates the influence of socioeconomic status, health literacy, and numeracy on treatment decisions and the occurrence of adverse events in patients with breast, lung, and prostate cancer within a Nordic healthcare setting.
    Design: A follow-up to a cross-sectional, mixed-methods, single-centre study.
    Setting: A Nordic, tertiary cancer clinic.
    Participants: A total of 244 participants with breast, lung and prostate cancer were initially identified, of which 138 first-line treatment participants were eligible for this study. First-line treatment participants (n=138) surpassed the expected cases (n=108).
    Interventions: Not applicable as this was an observational study.
    Primary and secondary outcome measures: The study's primary endpoint was the rate of guideline adherence. The secondary endpoint involved assessing treatment toxicity in the form of adverse events.
    Results: Guideline-adherent treatment was observed in 114 (82.6%) cases. First-line treatment selection appeared uninfluenced by participants' education, occupation, income or self-reported health literacy. A minority (3.6%) experienced difficulties following treatment instructions, primarily with oral cancer medications.
    Conclusions: The findings indicated lesser cancer health disparities regarding guideline adherence and treatment toxicity within the Nordic healthcare framework. A causal connection may not be established; however, the findings contribute to discourse on equitable cancer health provision.
    MeSH term(s) Humans ; Male ; Cross-Sectional Studies ; Delivery of Health Care ; Lung ; Occupations ; Prostatic Neoplasms/therapy ; Female
    Language English
    Publishing date 2024-04-08
    Publishing country England
    Document type Observational Study ; Journal Article
    ZDB-ID 2599832-8
    ISSN 2044-6055 ; 2044-6055
    ISSN (online) 2044-6055
    ISSN 2044-6055
    DOI 10.1136/bmjopen-2024-084689
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Socioeconomic status and lifestyle patterns in the most common cancer types-community-based research.

    Sandström, Niclas / Johansson, Mikael / Jekunen, Antti / Andersén, Heidi

    BMC public health

    2023  Volume 23, Issue 1, Page(s) 1722

    Abstract: Introduction: As the global burden of chronic cancer increases, its correlation to lifestyle, socioeconomic status (SES) and health equity becomes more important. The aim of the present study was to provide a snapshot of the socioeconomic and lifestyle ... ...

    Abstract Introduction: As the global burden of chronic cancer increases, its correlation to lifestyle, socioeconomic status (SES) and health equity becomes more important. The aim of the present study was to provide a snapshot of the socioeconomic and lifestyle patterns for different cancer types in patients at a Nordic tertiary cancer clinic.
    Materials and methods: In a descriptive observational study, questionnaires addressed highest-attained educational level, occupational level, economy, relationship status, exposures, and lifestyle habits. The questionnaire was distributed to all cancer patients attending the cancer clinic. Treating physicians added further information about the cancer disease, including primary origin, pathology report, TNM-classification and stage.
    Results: Patients with lung cancer had the lowest SES, and patients with gastrointestinal (GI) cancer, other cancer types and prostate cancer had the second, third and fourth lowest SES, respectively. However, breast cancer patients had the highest SES. Lifestyle and exposure patterns differed among the major cancer types. Lung cancer patients reported the highest proportion of unfavourable lifestyle and exposure patterns, and patients with GI cancer, prostate cancer and other cancer types had the second, third and fourth highest proportion of unfavourable lifestyle and exposure patterns, respectively. The most favourable exposure and lifestyle patterns were observed in breast cancer patients.
    Conclusions: The present study indicated significant socioeconomic and lifestyle differences among cancer types at a Nordic cancer centre, with differences in lifestyle being more prominent than socioeconomic differences.
    MeSH term(s) Male ; Humans ; Prostatic Neoplasms ; Breast Neoplasms ; Lung Neoplasms ; Social Class ; Life Style
    Language English
    Publishing date 2023-09-05
    Publishing country England
    Document type Observational Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2041338-5
    ISSN 1471-2458 ; 1471-2458
    ISSN (online) 1471-2458
    ISSN 1471-2458
    DOI 10.1186/s12889-023-16677-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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