Inhibitors of Protein Methyltransferases as Chemical Tools

This content shows Simple View


Supplementary Materialsmp500405h_si_001

Supplementary Materialsmp500405h_si_001. and assists protect cells from acid-induced cell loss of life. Since both TG2 and GLS1 can function to safeguard cancers cells likewise, we after that proceeded to show that treatment of a number of cancers cell types with inhibitors of every of these protein results in artificial lethality. The mixture doses from the inhibitors induce cell loss of life, while specific treatment with each substance shows little or AKOS B018304 no ability to kill cells. These results suggest that combination drug treatments that simultaneously target TG2 and GLS1 might provide an effective strategy for killing cancer cells. strong class=”kwd-title” Keywords: glutaminase, tissue transglutaminase, cancer, 968 Introduction Chemical cocktails are now being widely used in treating cancer, taking advantage of the idea that administering multiple drugs simultaneously is more effective than treating with the same drugs individually and/or sequentially.1,2 In developing such drug combinations, one important factor to consider is drug cooperativity; specifically, the ability of two or more compounds to work together to enhance their efficacy beyond that obtained when AKOS B018304 either drug is administered alone.3?5 Given the large number of anticancer drugs available, together with recent advances in cancer diagnostics, it is becoming increasingly possible to use minimal doses of specific drug combinations to maximize their therapeutic benefits.6 One mechanism by which to determine effective drug combinations is to identify proteins that have similar functions but are activated by distinct signaling events. We have recently reported the finding of the inhibitor of glutaminase C (GAC), particularly, a benzophenanthridinone referred to as 968 (Shape Rabbit Polyclonal to RASA3 ?(Figure1).1). GAC is really a splice variant of kidney-type glutaminase (GLS1) and is in AKOS B018304 charge of the transformation of glutamine to glutamate, an anaplerotic response that really helps to fulfill the metabolic requirements enforced from the Warburg impact in nearly all cancers cells.7,8 968 acts as an allosteric inhibitor of GAC activity and works well in blocking the growth of a multitude of breast, brain, and pancreatic cancer cells, including the ones that are resistant to traditional chemotherapies, recommending that antiglutaminase therapy may have broad-spectrum applicability within the clinic. 968 treatment offers been proven to block several glutamine- or glutaminase-dependent mobile procedures, including epigenetic adjustments in cells that promote the malignant phenotype.9?11 Due to the promise of 968 like a essential drug for the treating cancer potentially, in conjunction with the indications that combination therapies tend to be more effective than solitary drug regimens in managing cancer, we attempt to examine the usage of 968 within a targeted chemical substance cocktail. Some from the fascination with GLS1 is dependant on its part in helping cancers cells fulfill the metabolic requirements enforced from the Warburg impact (i.e., their dependence on glutamine), GLS1 includes a second essential function that plays a part in cancers development also, namely, the creation of ammonia. As an results of the Warburg impact, most tumor cells undergo an elevated price of lactic acidity fermentation, despite sufficient access to air.12 This leads to the creation of a higher focus of protons that might be toxic to many cells. Nevertheless, GLS1 generates ammonia like a byproduct of its enzymatic activity, which includes recently been proven to play a significant part in regulating intracellular pH by neutralizing the poisonous accumulation of protons.13 AKOS B018304 Thus, inhibition of GLS1 via 968 prevented tumor cells from having the ability to compensate for the acidification of the culturing media and triggered them to be more private to glutamine withdrawal. Furthermore, Wagner and Curthoys individually demonstrated that GLS1 manifestation can be up-regulated in mice experiencing chronic acidosis, which is consistent with earlier findings showing that this mRNA encoding GLS1 contains a pH-responsive element that helps promote the stability of the transcript when exposed to acidic conditions.14?16 Open in a separate window Determine 1 Inhibitors of GLS1 and TG2. 968 and BPTES are reversible allosteric regulators of GLS1. MDC.

Supplementary MaterialsSuppl

Supplementary MaterialsSuppl. helping their function could be book immunotherapy targets. Right here, the selective appearance of YAP by Tregs, its importance because of their function, and its own unexpected improvement of pro-Treg Activin/SMAD signaling are reported, as are validations of potential cancer-fighting antagonists of YAP and its own regulatory PKX1 targets. Launch Regulatory T cells (Treg) play vital roles to advertise immunologic self-tolerance and immune system homeostasis by suppressing aberrant or extreme immune responses which could bring about autoimmune illnesses (1). Nevertheless, PK14105 their capability to dampen the activation of various other leukocytes may also pose a significant hurdle to effective antitumor immunity as well as the sterile treat of chronic attacks (2). The personal forkhead family members transcription PK14105 aspect FOXP3 anchors PK14105 the gene manifestation profile that is responsible for the characteristic suppressive function of Tregs. Clearly demonstrating the importance of this element, mutations to the gene encoding FOXP3 can lead to fatal autoimmune disorders in Scurfy mice and in human being individuals with IPEX alike (3, 4). Despite the undeniable importance of FOXP3 for Treg function and immune control, our grasp of the factors and mechanisms governing its manifestation remains incomplete. The signaling pathways induced in response to particular cytokines (e.g., IL2 and TGF) can be critical for induction and maintenance of FOXP3 manifestation in Tregs (5). TGF potently induces FOXP3 manifestation and through activation of SMAD signaling molecules, essential facilitators and regulators of TGF-initiated signaling events and downstream gene activation (6, 7). TGF signaling has also been reported to be critical for keeping FOXP3 manifestation and Treg function (8, 9). Similarly, SMAD2 and SMAD3 will also be apparently needed for the optimal phenotypic stability of Tregs (10). Importantly, mechanisms for the augmentation or amplification of TGF/SMAD signaling in Tregs can stabilize or enhance the suppressive function of these cells (11) and may be important determinants of Treg overall performance in a variety of microenvironmental niches. YAP is a transcriptional coactivator that developmentally regulates organ size (12, 13). YAP is frequently elevated in a number of tumor types such as lung, colorectal, ovarian, liver, and prostate cancers, where it functions as a powerful tumor promoter, and its activation is a frequent event in tumor progression (14). The Hippo pathway is definitely believed to be the major regulator of YAP nuclear localization, activity, and tumorigenic potential (15C17). However, the physiologic part of YAP in the immune system is definitely unknown. Unexpectedly, we found YAP to be highly indicated by Tregs. In this statement, we characterize the part of YAP in these important cellular mediators of immune control. Our studies revealed that in the absence of YAP, Tregs failed to suppress immune activation as well as We also found that YAP potentiates the signaling events triggered by dimeric users of the TGF cytokine superfamily known as activins by activating manifestation of a key signaling component of the activin receptor complicated. Interestingly, we discovered that not merely is normally this signaling axis energetic in Tregs, it might also effectively amplify TGF/SMAD signaling as well as the advertising of Treg function and differentiation. Moreover, disrupting this YAP/activin/SMAD axis slowed the development of tumors in mice significantly, including a aggressive melanoma model highly. This experimental treatment improved the antitumor efficiency of the antitumor vaccine also, suggesting which the targeting of the YAP/activin/SMAD axis may be used to improve anticancer immunotherapy efficiency. RESULTS YAP Appearance Is normally Induced by.

Supplementary Materials? JCMM-24-640-s001

Supplementary Materials? JCMM-24-640-s001. advertised both proliferation and neuronal differentiation of NSCs after OGD/R. Notably, a further mechanism study revealed that this pro\neurogenesis effects of USC\Exos may be partially attributed to histone deacetylase 6 (HDAC6) inhibition via the transfer of exosomal microRNA\26a (miR\26a). Taken together, this scholarly study indicates that USC\Exos LY2603618 (IC-83) can be used as a novel promising strategy for human brain ischaemia, which highlights the use of USC\Exos. for 15?mins and 2000?for 30?mins to remove deceased cells and cellular particles. After centrifugation at 10?000?for 1?hour, the supernatant was further ultracentrifuged in 100?000?for 2?hours. Following the removal of supernatant, the pellet was resuspended in phosphate buffer saline (PBS), accompanied by another ultracentrifugation at 100?000?for 2?hours. Finally, pelleted exosomes had been resuspended LY2603618 (IC-83) in PBS. Exosome morphologies had been detected using transmitting electron microscopy (TEM). Quickly, fresh exosome examples had been loaded onto a continuing carbon grid, and set in 3% (w/v) glutaraldehyde and stained with 2% uranyl acetate. The examples had been then examined using a Hitachi H\7650 transmitting electron microscope (Hitachi). The scale and concentration from the exosomes had been assessed using movement nanoanalyser instruments based on the manufacturer’s guidelines.38, 39 Exosomal markers Compact disc9 (1:1000; Abcam), TSG101 (1:1000; Abcam), Alix (1:1000; Abcam) and harmful marker Golgi membrane sure proteins (GM1301:500; Abcam) had been detected using Traditional western blot evaluation. 2.3. NSC lifestyle Subventricular area NSCs had been dissociated from Sprague\Dawley (SD) rats and cultured as previously referred to.40 The proliferation medium from the NSCs was made up of Dulbecco’s modified Eagle medium (DMEM)/F12 media (Gibco) supplemented with 2% (v/v) B27 (Gibco), 20?ng/mL epidermal development aspect (EGF; Perprotech), 20?ng/mL simple fibroblast growth aspect (bFGF; Perprotech), 1% penicillin\streptomycin (Gibco) and 2?g/mL heparin (Sigma). Passages 2\4 had been used for the next tests. 2.4. Program of air\blood sugar deprivation/reoxygenation (OGD/R) To imitate ischaemic\like circumstances in vitro, the lifestyle medium from the NSCs was changed with blood sugar\free of charge DMEM formulated with the same products as those in the proliferation moderate. The NSCs had been then used LY2603618 (IC-83) in anaerobic circumstances (5% CO2 and 95% N2) for 8?hours. OGD was after that finished by changing the moderate to blood sugar and coming back the NSCs to normoxia cultured with either the lack (automobile) or existence of USC\Exos (1??109?contaminants/mL) for 24?hours. Control NSCs had been cultured under regular conditions without the treatment. Cells were harvested for even more evaluation then simply. 2.5. Evaluation of NSC proliferation and neuron differentiation after OGD/R The 5\ethynyl\2\deoxyuridine (EdU, 10?mol/L, Invitrogen) was put into the culture moderate following OGD/R. After yet another 24?hours, the cells were stained with Nestin antibody (1:100; Abcam) and EdU click response (Invitrogen). Immunoreactive cells had been visualized using fluorescence microscopy (Leica). Differentiation of NSCs was induced by withdrawal of bFGF and EGF following OGD/R. At time 7, the differentiation was examined with Tuj1 (1:100; Abcam) staining. Each test was repeated at least 3 x. 2.6. Cell transfection For HDAC6 overexpression, NSCs had been transfected with HDAC6 plasmid (1?g) using Lipofectamine 2000 (Invitrogen) in Opti\MEM (Invitrogen) based on the manufacturer’s guidelines. HDAC6 overexpression control and plasmid vector plasmid were purchased Sele from RiboBio. For miR\26a knock\down, USCs had been transfected with inhibitor control (IC) or miR\26a inhibitor (100?nmol/L; RiboBio) using Lipofectamine RNAiMAX reagent (Invitrogen) based on the manufacturer’s process. The transfected cells had been cultured for 48?hours to make use of in subsequent tests prior. 2.7. Cerebral ischaemia model and USC\Exos shot Every one of the pet study protocols had been approved by the Animal Research Committee of the Shanghai Sixth People’s Hospital (SYXK [Shanghai, China] 2011\0128, 1 January 2011). Transient focal cerebral ischaemia was induced via middle cerebral artery occlusion (MCAO). SD rats (6\8?weeks old, male, 250\300?g) were subjected to 2?hours of right MCAO using an intraluminal suture vascular occlusion. Rats showing neither hemiplegia nor neurological deficits post\MCAO were excluded for data analysis consistency. Animals were then randomized into four.

Supplementary Materialssensors-19-05409-s001

Supplementary Materialssensors-19-05409-s001. utilizing a process as Morusin published by Jansson and co-workers [33]. Antibody GOD3-2C4 binds to the Tn antigen indicated by malignancy of breast, colon, lung, ovary, and pancreas and was the 1st anti-Tn antibody showing anti-tumor activity on a solid tumor [33] and recently the antibody was applied to identify possible carrier of the Tn antigen in samples from individuals having breast tumor [15]. Binding specificity towards numerous glycans, glycoprotein and proteins showed no binding of GOD3-2C4 antibody to BSA or HSA proteins having a biospecific binding for the Tn antigen [33]. The Tn antigen (GalNAc1-to use using 0.2 m sterile filters. HSA was dissolved in 10 mM PBS remedy with pH 7.4 and 0.05 % TWEEN 20. The Tn antigen was dissolved in 10 mM PBS remedy with pH 7.4, both solutions were prepared at concentration of 1 1 mg mL?1 and were stored at ?20 C in aliquots. 2.2. Electrode Pretreatment First, the surfaces of bare graphene screen-printed electrodes (GSPEs, = 4 mm, DropSens, Llanera, Spain) were potentiostatically activated. Chronoamperometry was chosen as an activation procedure. We started with optimization of an activation time and potential. Three different time intervals (30 s, 60 s and 90 s) in combination with two different potential values (+1.5 V and +1.7 V) were examined [34]. The process was carried out in three-electrode electrochemical cells with an Ag/AgCl/3 M KCl reference and a counter Pt electrode (Bioanalytical Systems, West Laffayette, IN, USA) using phosphate Morusin buffer (50 mM, pH 6.0). The actual measurement was carried out by a laboratory potentiostat/galvanostatAutolab PGSTAT 302N (Ecochemie, Utrecht, The Netherlands). Measurements were work under Nova Software program 1.10. 2.3. The Glycan Biosensor Rabbit Polyclonal to ARPP21 After electrochemical activation stage, working areas of GSPEs had been cleaned with DW. Free of charge (electro)triggered carboxyl groups had been triggered with 40 L remedy of 200 mM EDC and 50 mM NHS combined at a percentage of 1+1 simply immobilization (remedy of EDC and NHS had been previously ready in DW and kept individually at ?80 C in aliquots) for 12 min [35]. Following this chemical substance activation, the electrodes had been cleaned with DW. The next phase was an incubation of areas with HSA (10?5?10?1 mg mL?1 dissolved in PBS with 0.05% TWEEN 20) for 15 min. After immobilization of HSA, the Morusin proteins was triggered with 40 L remedy of 200 mM EDC and 50 mM NHS in a percentage of just one 1 + 1 for 12 min and the activated surface area was incubated using the Tn antigen (100 M) for 15 min. The HSA and glycan immobilization were performed in a available room temperature. 2.4. Differential Pulse Voltammetry (DPV) Dimension DPV was assessed within an electrolyte including 5 mM potassium hexacyanoferrate (II) trihydrate and 0.01 M PBS, pH 7.4. The guidelines requested the differential pulse voltammetry had been the following: 60 s build up period at 0.2 V, 50 ms modulation period, 0.5 s interval time, 25 mV modulation amplitude, and 5 mV stage. Measurements were work under Nova Software program 1.10 (Ecochemie,). The full total results were presented in an application vs. plot in which a maximum height was likened and analyzed (Shape 1b) for analyte (lectin or GOD3-2C4 antibody) focus typically from 9 aM as much as 9 pM. The biosensor displays saturation from the response sign at concentrations greater than 9 pM (Shape S1). Each analyte was assessed a minimum of in triplicate on three 3rd party biosensor products (electrodes) and email address details are demonstrated with a typical deviation (SD) or comparative regular deviation (RSD).

The 2019 coronavirus disease (COVID-19) has not seemed to affect children as severely as adults

The 2019 coronavirus disease (COVID-19) has not seemed to affect children as severely as adults. high scientific suspicion because of this COVID-19 linked post-infectious cytokine discharge symptoms, with features that overlap with Kawasaki Disease (KD) and Toxic Surprise Symptoms (TSS) in kids with latest or current COVID-19 infections, as sufferers can easily decompensate. pharyngitis and began on treatment with Amoxicillin. The antibiotic was discontinued after the throat lifestyle was negative. On the entire time of display, he was examined by a skin doctor via telemedicine who suggested supportive look after his rash. Both his parents had Hydroxyphenylacetylglycine COVID-19 also. There is no latest travel. The individual did not consider any daily medicines and was current along with his regular vaccinations. The patient’s triage essential signs had been: T 35.8, HR 104, RR 28, BP 70/35, SpO2 96% RA. Hydroxyphenylacetylglycine On physical test, he is at no in severe problems but complained of generalized soreness. He previously a diffuse erythematous, blanching, maculopapular rash in the throat, chest, abdomen, back again and extremities (like the hands and bottoms) with dusky areas on the trunk. He had minor, bilateral non-purulent conjunctival shot without dental lesions. He was tachycardic with regular rhythm and great surroundings entry in the lungs with regular respiratory system work bilaterally. His abdominal was gentle, nondistended and nontender. His extremities had been warm and well perfused using a fast capillary refill. Lab data are provided in Desk 1. CXR imaging email address details are provided in Fig. 1. The individual was resuscitated with 80?mL/kg of normal saline via pressure handbag without hemodynamic improvement. He received cefepime and clindamycin to protect for TSS. Vancomycin was held due to concern for acute renal injury as evidenced by azotemia on his labs. The patient was admitted to the PICU for close monitoring and initiation of dopamine peripherally for pressor support in the setting of prolonged hypotension. Cardiology performed an echocardiogram, which showed moderate regurgitation in both the tricuspid and mitral valves and normal coronary arteries with the exception of slight ectasia of the left RaLP anterior descending artery. In the PICU, the patient was treated with IVIG for atypical KD disease, tocilizumab for the cytokine storm and linezolid was added to cefepime for better inhibition of toxins produced in TSS. 2.3. Case 3 A 5-year-old healthy male presented with 5?days of fever and 1?day of abdominal pain and vomiting. He had a decreased appetite for the past few days but did not have cough, congestion, rhinorrhea, shortness of breath, diarrhea or rash. The family experienced no sick contacts, and the patient did not have any exposure to COVID-19 positive individuals. On arrival, the patient was tired-appearing but alert. His initial vital signs showed a heat of 40.2?C, HR 156, BP 94/64, RR 31, SPO2 98% RA. Examination was notable for bilateral limbic sparing conjunctivitis without discharge, dry/cracked lips, scattered petechiae around the eyelids bilaterally, and shotty cervical lymphadenopathy. His posterior oropharynx was mildly erythematous. He previously tachycardia with out a gallop or murmur, apparent lungs without crackles or retractions, a gentle, non-tender abdomen, and a standard GU exam without scrotal testicular or bloating tenderness. No rashes had been noted. Lab data are provided in Desk 1. During his training course in the PED, the Hydroxyphenylacetylglycine individual remained tachycardic and febrile. He was presented with one 20?mL/kg NS bolus and started in maintenance IVF with D5 NS. A cardiopulmonary POCUS demonstrated scattered B-lines without lung consolidations, a little pericardial prominent and effusion still left primary coronary artery, no thrombus in the IVC, femoral, or popliteal blood vessels. He was presented with ceftriaxone and clindamycin for insurance of potential TSS. He was accepted to the ground for further administration. The individual remained stable on to the floor for approximately 24?h. Throughout that correct period he was began on enoxaparin, and acquired a testicular US displaying bilateral epididymoorchitis and an abdominal US that was amazing for mild free fluid and borderline gallbladder wall thickening. A formal echocardiogram showed a mildly dilated proximal remaining anterior descending coronary artery. A rapid response was called the night after admission for BP of 61/37. Patient Hydroxyphenylacetylglycine was fluid resuscitated and BP stabilized. However, the following day time the patient again experienced hypotension and was transferred to the PICU and started on dopamine. He was given IVIG and tocilizumab, and continued on ceftriaxone and clindamycin. 2.4. Case 4 A 12-year-old healthy.

Epileptic spasms during infancy (infantile spasms) represent a significant treatment and interpersonal problem despite their rare occurrence

Epileptic spasms during infancy (infantile spasms) represent a significant treatment and interpersonal problem despite their rare occurrence. acid linker and a altered melanocyte-stimulating hormone molecule. In contrast to ACTH with almost uniform activity over all peripheral and central melanocortin receptor isoforms, AQB is usually preferentially active on central melanocortin receptors MC3 and MC4. Here, we used equivalent doses of rat ACTH (full molecule) and AQB-565 and compared their efficacy in a prospective randomized test against of repeated rounds of spasms on postnatal times (P)12, P13 and P15 within the rat model. All dosages of ACTH (range 0.02-1.0 mg/kg sc) and everything dosages but among AQB-565 within the same vary suppressed spasms in P15 rats (treatment ended on P14). There is no dose-dependent impact and both substances had all-or-none impact that is much like clinical results of hormonal treatment of infantile spasms in kids. Thus, AQB-565 may represent a novel treatment of infantile spasms effective as ACTH but with potentially limited unwanted effects similarly. gene triplet do it again enlargement (Olivetti et al., 2014). This means that that each subtypes of WS might have extremely specific awareness to remedies. Clinical studies show that not absolutely all etiological types of WS would react to similar or similar remedies [analyzed in (Hussain, 2018)]. You can find three notions connected with this bottom line: First, current crude subdivision of WS to symptomatic and cryptogenic circumstances can Pinocembrin be recommending differential remedy approach, human hormones (ACTH) for the previous and vigabatrin for the last mentioned. Second, it could be speculated that genetic types of infantile spasms shall require variety-specific treatment. Finally, better knowledge of the root systems for the distinctive subtype of epileptic spasms etiologies allows for more individualized remedies. Despite our greatest efforts to generate dose replies with both looked into medications, the response was all-or non-e. This is actually the kind of response regular for physiological activity of human hormones and like the ramifications of ACTH observed in kids with infantile spasms (Hrachovy et al., 1980; Snead et al., 1989). The existing study coupled with prior preclinical data suggest that hormonal remedies, aside from the vigabatrin, still prevail in efficiency in preclinical types of spasms during infancy (Briggs et al., 2014). Carisbamate (produced by Johnson & Johnson Pharmaceutical Analysis) looked appealing (Ono et al., 2011) nonetheless it was hardly ever advertised. Multiple etiologies, hereditary range, and our inadequate knowledge of the root mechanisms tend at fault in insufficient development of book nonhormonal remedies for infantile spasms. ? Features: Efficacy of the book peptide AQB-565 was in comparison to ACTH within a rodent style of infantile spasms Both AQB-565 and ACTH suppressed spasms within an all-or-none style with similar efficiency Hormonal or peptide remedies still have superior efficacy in infantile spasms Acknowledgments Funding: This work was supported by Aequus Biopharma, Inc. JV was partially supported by the NIH award NS- 092786. The sponsors experienced no influence on the design of the experiments, collection, analysis or interpretation of the data. Footnotes Declaration of Interest: None, except for the funding source. *ACTH: adrenocorticotropic hormone, adrenocorticotropin, corticotropin; ANOVA: analysis of variance; EEG: electroencephalogram; Pinocembrin G: gestational day; i.p.: intraperitoneal(ly); MC: melanocortin; MSH-melanocyte stimulating hormone; NMDA: N-methyl-D-aspartic acid; P: postnatal day; s.c.: subcutaneous(ly) Publisher’s Disclaimer: This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and overview of the causing proof before it really is released in its last citable form. Please be aware that through the creation process errors could be discovered that could have an effect on this content, and everything legal disclaimers that connect with the journal pertain. Personal references Berenson R, Matthews MA, Wallis W, Dua Rabbit polyclonal to PLAC1 R, Moore M, Terkeltaub R, Clegg CA, 2016. Melanocortin Fusion Peptide (AQB-565) Optimized for Melanocortin Receptor Engagement Considerably Reduces Inflammation within an In Vivo style of Acute Gout [abstract]. Joint disease Rheumatol. 68 (Suppl 10), 2266. [Google Scholar]Briggs SW, Mowrey W, Hall CB, Galanopoulou AS, 2014. CPP-115, a vigabatrin analogue, reduces spasms within the multiple-hit rat style of infantile spasms. Epilepsia 55, 94C102. [PMC free of charge content] [PubMed] [Google Scholar]Brunson KL, Khan N, Eghbal-Ahmadi M, Baram TZ, 2001. Corticotropin (ACTH) serves on amygdala neurons to down-regulate corticotropin-releasing hormone gene appearance directly. Ann Neurol 49, 304C312. [PMC free of charge content] [PubMed] [Google Scholar]Chachua T, Di Grazia P, Chern CR, Johnkutty M, Hellman B, Pinocembrin Lau HA, Shakil F, Daniel M, Goletiani C, Vel?kov J, Vel?ek L, 2016. Estradiol will not have an effect on spasms within the betamethasone-NMDA rat style of infantile spasms. Epilepsia 57, 1326C1336. [PubMed] [Google Scholar]Chachua T, Yum M-S, Vel?kov.