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14,083 Results Found

  • Article
  • Open Access
1,807 Views
13 Pages

Although Italo-Greek is characterized by a general retreat of infinitival complementation, it partly preserves the infinitive in restructuring contexts: a handful of functional auxiliaries—in an overt or covert form—allow for infinitival...

  • Review
  • Open Access
36 Citations
10,126 Views
35 Pages

Luminescence- and Fluorescence-Based Complementation Assays to Screen for GPCR Oligomerization: Current State of the Art

  • Elise Wouters,
  • Lakshmi Vasudevan,
  • René A. J. Crans,
  • Deepak K. Saini and
  • Christophe P. Stove

G protein-coupled receptors (GPCRs) have the propensity to form homo- and heterodimers. Dysfunction of these dimers has been associated with multiple diseases, e.g., pre-eclampsia, schizophrenia, and depression, among others. Over the past two decade...

  • Article
  • Open Access
10 Citations
3,313 Views
20 Pages

16 October 2022

Obesity is an established risk factor for metabolic disease. This study explores the functional complementation of anti-adipogenic phytonutrients for obesity prevention and management. Nine phytonutrients were selected based on their ability to affec...

  • Article
  • Open Access
1 Citations
2,216 Views
17 Pages

29 February 2024

The aim of this article is to explain the syntactic competition found in the complementation of Old English Prevent verbs. The competition on argumenthood involves linked verbal predications and linked nominal predications. Evidence is gathered for c...

  • Review
  • Open Access
6,338 Views
31 Pages

Interspecies Blastocyst Complementation and the Genesis of Chimeric Solid Human Organs

  • Elena Bigliardi,
  • Anala V. Shetty,
  • Walter C. Low and
  • Clifford J. Steer

12 February 2025

Solid organ transplantation remains a life-saving treatment for patients worldwide. Unfortunately, the supply of donor organs cannot meet the current need, making the search for alternative sources even more essential. Xenotransplantation using sophi...

  • Concept Paper
  • Open Access
14 Citations
5,744 Views
9 Pages

A Gold Standard, CRISPR/Cas9-Based Complementation Strategy Reliant on 24 Nucleotide Bookmark Sequences

  • François M. Seys,
  • Peter Rowe,
  • Edward L. Bolt,
  • Christopher M. Humphreys and
  • Nigel P. Minton

23 April 2020

Phenotypic complementation of gene knockouts is an essential step in establishing function. Here, we describe a simple strategy for ‘gold standard’ complementation in which the mutant allele is replaced in situ with a wild type (WT) allel...

  • Article
  • Open Access
2 Citations
3,466 Views
19 Pages

8 September 2019

Currently, unmanned vehicles are widely used in different fields of exploration. Due to limited capacities, such as limited power supply, it is almost impossible for one unmanned vehicle to visit multiple wide areas. Multiple unmanned vehicles with w...

  • Technical Note
  • Open Access
22 Citations
5,182 Views
19 Pages

Visualization of Sirtuin 4 Distribution between Mitochondria and the Nucleus, Based on Bimolecular Fluorescence Self-Complementation

  • Jeta Ramadani-Muja,
  • Benjamin Gottschalk,
  • Katharina Pfeil,
  • Sandra Burgstaller,
  • Thomas Rauter,
  • Helmut Bischof,
  • Markus Waldeck-Weiermair,
  • Heiko Bugger,
  • Wolfgang F. Graier and
  • Roland Malli

6 December 2019

Mitochondrial sirtuins (Sirts) control important cellular processes related to stress. Despite their regulatory importance, however, the dynamics and subcellular distributions of Sirts remain debatable. Here, we investigate the subcellular localizati...

  • Article
  • Open Access
4 Citations
5,963 Views
11 Pages

Visualization of Tau–Tubulin Interaction in a Living Cell Using Bifluorescence Complementation Technique

  • Seulgi Shin,
  • Sungsu Lim,
  • Hyeanjeong Jeong,
  • Li Ting Kwan and
  • Yun Kyung Kim

29 September 2018

Tau is a neuron-specific microtubule-binding protein that stabilizes microtubules. It is generally thought that highly phosphorylated tau dissociates from microtubules and becomes insoluble aggregates, leading to neuronal degeneration. Due to the imp...

  • Article
  • Open Access
3 Citations
6,505 Views
16 Pages

λ genes O and P are required for replication initiation from the bacteriophage λ origin site, oriλ, located within gene O. Questions have persisted for years about whether O-defects can indeed be complemented in trans. We show the effect of original...

  • Article
  • Open Access
4 Citations
2,817 Views
17 Pages

Analysing the Cyanobacterial PipX Interaction Network Using NanoBiT Complementation in Synechococcus elongatus PCC7942

  • Carmen Jerez,
  • Antonio Llop,
  • Paloma Salinas,
  • Sirine Bibak,
  • Karl Forchhammer and
  • Asunción Contreras

The conserved cyanobacterial protein PipX is part of a complex interaction network with regulators involved in essential processes that include metabolic homeostasis and ribosome assembly. Because PipX interactions depend on the relative levels of th...

  • Review
  • Open Access
22 Citations
8,387 Views
15 Pages

Complement and Complement Targeting Therapies in Glomerular Diseases

  • Sofia Andrighetto,
  • Jeremy Leventhal,
  • Gianluigi Zaza and
  • Paolo Cravedi

16 December 2019

The complement cascade is part of the innate immune system whose actions protect hosts from pathogens. Recent research shows complement involvement in a wide spectrum of renal disease pathogenesis including antibody-related glomerulopathies and non-a...

  • Article
  • Open Access
948 Views
13 Pages

13 August 2025

Retroviruses are single-stranded RNA viruses that package two copies of their positively stranded RNA genomes as a non-covalent dimer into newly formed virions. This process is evolutionarily conserved, and disruption of genome dimerization results i...

  • Article
  • Open Access
4 Citations
2,879 Views
17 Pages

Phosphorylation-Assisted Luciferase Complementation Assay Designed to Monitor Kinase Activity and Kinase-Domain-Mediated Protein–Protein Binding

  • Ádám L. Póti,
  • Laura Dénes,
  • Kinga Papp,
  • Csaba Bató,
  • Zoltán Bánóczi,
  • Attila Reményi and
  • Anita Alexa

3 October 2023

Protein kinases are key regulators of cell signaling and have been important therapeutic targets for three decades. ATP-competitive drugs directly inhibit the activity of kinases but these enzymes work as part of complex protein networks in which pro...

  • Article
  • Open Access
21 Citations
7,794 Views
13 Pages

Functional Analysis of the Isopentenyl Diphosphate Isomerase of Salvia miltiorrhiza via Color Complementation and RNA Interference

  • Xianan Zhang,
  • Hongyu Guan,
  • Zhubo Dai,
  • Juan Guo,
  • Ye Shen,
  • Guanghong Cui,
  • Wei Gao and
  • Luqi Huang

10 November 2015

Isopentenyl diphosphate isomerase (IPI) catalyzes the isomerization between the common terpene precursor substances isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP) during the terpenoid biosynthesis process. In this study, tissue e...

  • Communication
  • Open Access
6 Citations
7,133 Views
9 Pages

19 February 2014

The simplicity and sensitivity of the bimolecular fluorescence complementation (BiFC) assay make it a powerful tool to investigate protein-protein interactions (PPIs) in living cells. However, non-specific association of the fluorescent protein fragm...

  • Article
  • Open Access
25 Citations
12,879 Views
15 Pages

10 March 2011

Many genetic and infectious diseases can be targeted at the RNA level as RNA is more accessible than DNA. We seek to develop new approaches for detection and tracking RNA in live cells, which is necessary for RNA-based diagnostics and therapy. We rec...

  • Brief Report
  • Open Access
12 Citations
8,251 Views
11 Pages

7 March 2019

Fusion of viral and cellular membranes is a key step during the viral life cycle. Enveloped viruses trigger this process by means of specialized viral proteins expressed on their surface, the so-called viral fusion proteins. There are multiple assays...

  • Article
  • Open Access
3 Citations
5,043 Views
11 Pages

δ-Complement of a Graph

  • Amrithalakshmi Pai,
  • Harshitha A. Rao,
  • Sabitha D’Souza,
  • Pradeep G. Bhat and
  • Shankar Upadhyay

7 April 2022

Let G(V,X) be a finite and simple graph of order n and size m. The complement of G, denoted by G¯, is the graph obtained by removing the lines of G and adding the lines that are not in G. A graph is self-complementary if and only if it is isomor...

  • Article
  • Open Access
13 Citations
4,940 Views
12 Pages

Complement Activation Profile in Myasthenia Gravis Patients: Perspectives for Tailoring Anti-Complement Therapy

  • Nicola Iacomino,
  • Fiammetta Vanoli,
  • Rita Frangiamore,
  • Marta Ballardini,
  • Letizia Scandiffio,
  • Federica Bortone,
  • Francesca Andreetta,
  • Fulvio Baggi,
  • Pia Bernasconi and
  • Renato Mantegazza
  • + 2 authors

The complement system plays a key role in myasthenia gravis (MG). Anti-complement drugs are emerging as effective therapies to treat anti-acetylcholine receptor (AChR) antibody-positive MG patients, though their usage is still limited by the high cos...

  • Review
  • Open Access
10 Citations
6,488 Views
28 Pages

17 July 2024

Signaling pathways are responsible for transmitting information between cells and regulating cell growth, differentiation, and death. Proteins in cells form complexes by interacting with each other through specific structural domains, playing a cruci...

  • Article
  • Open Access
3 Citations
3,617 Views
13 Pages

2 August 2023

In this study, we developed a highly sensitive and specific bimolecular fluorescence complementation (BiFC)-based influenza A virus (IAV)-sensing system by combining a galactose/glucose-binding protein (GGBP) with an N-terminal large domain (YN1-172)...

  • Review
  • Open Access
57 Citations
21,253 Views
14 Pages

15 February 2023

Systemic lupus erythematosus (SLE) is a disease of immune complex deposition; therefore, complement plays a vital role in the pathogenesis of SLE. In general, complement levels in blood and complement deposition in histological tests are used for the...

  • Review
  • Open Access
10 Citations
3,706 Views
27 Pages

Complement Immune System in Pulmonary Hypertension-Cooperating Roles of Circadian Rhythmicity in Complement-Mediated Vascular Pathology

  • Hunter DeVaughn,
  • Haydn E. Rich,
  • Anthony Shadid,
  • Priyanka K. Vaidya,
  • Marie-Francoise Doursout and
  • Pooja Shivshankar

28 November 2024

Originally discovered in the 1890s, the complement system has traditionally been viewed as a “compliment” to the body’s innate and adaptive immune response. However, emerging data have shown that the complement system is a much more...

  • Article
  • Open Access
1 Citations
1,305 Views
15 Pages

Radiotherapy Upregulates the Expression of Membrane-Bound Negative Complement Regulator Proteins on Tumor Cells and Limits Complement-Mediated Tumor Cell Lysis

  • Yingying Liang,
  • Lixin Mai,
  • Jonathan M. Schneeweiss,
  • Ramon Lopez Perez,
  • Michael Kirschfink and
  • Peter E. Huber

18 July 2025

Background/Objectives: Radiotherapy (RT) is a mainstay of clinical cancer therapy that causes broad immune responses. The complement system is a pivotal effector mechanism in the innate immune response, but the impact of RT is less well understood. T...

  • Article
  • Open Access
1,357 Views
20 Pages

8 November 2024

The complement system is a pivotal component of innate immunity, extensively studied in vertebrates but also present in invertebrates. This study explores the existence of a terminal complement pathway in the tunicate Botryllus schlosseri, aiming to...

  • Article
  • Open Access
7 Citations
2,659 Views
22 Pages

26 September 2022

Complement factor I (CFI), a complement inhibitor, is well known for regulating the complement system activation by degrading complement component 3b (C3b) in animal serum, thus becoming involved in innate defense. Nevertheless, the functional mechan...

  • Review
  • Open Access
20 Citations
7,795 Views
23 Pages

The Complement System in Kidney Transplantation

  • Donata Santarsiero and
  • Sistiana Aiello

2 March 2023

Kidney transplantation is the therapy of choice for patients who suffer from end-stage renal diseases. Despite improvements in surgical techniques and immunosuppressive treatments, long-term graft survival remains a challenge. A large body of evidenc...

  • Case Report
  • Open Access
4 Citations
2,474 Views
7 Pages

Postsurgical Thrombotic Microangiopathy and Deregulated Complement

  • Thijs T. W. van Herpt,
  • Sjoerd A. M. E. G. Timmermans,
  • Walther N. K. A. van Mook,
  • Bas C. T. van Bussel,
  • Iwan C. C. van der Horst,
  • Jos G. Maessen,
  • Ehsan Natour,
  • Pieter van Paassen and
  • Samuel Heuts

29 April 2022

Postsurgical thrombotic microangiopathy (TMA) is a complication associated with significant morbidity and mortality. Still, the pathophysiological underlying mechanism of postsurgical TMA, a diagnosis often overlooked in postoperative patients with a...

  • Review
  • Open Access
18 Citations
6,775 Views
15 Pages

Genetic Insights into the Impact of Complement in Alzheimer’s Disease

  • Megan Torvell,
  • Sarah M. Carpanini,
  • Nikoleta Daskoulidou,
  • Robert A. J. Byrne,
  • Rebecca Sims and
  • B. Paul Morgan

15 December 2021

The presence of complement activation products at sites of pathology in post-mortem Alzheimer’s disease (AD) brains is well known. Recent evidence from genome-wide association studies (GWAS), combined with the demonstration that complement acti...

  • Review
  • Open Access
1 Citations
2,363 Views
44 Pages

Functional Roles of the Complement Immune System in Cardiac Inflammation and Hypertrophy

  • Kathryn D. Hok,
  • Haydn E. Rich,
  • Anthony Shadid,
  • Lavanya Gunamalai,
  • Tingting Weng-Mills,
  • Rajarajan A. Thandavarayan,
  • Nirmal K. Banda,
  • Marie-Francoise Doursout,
  • Marcos I. Restrepo and
  • Pooja Shivshankar

12 October 2025

Cardiac inflammation and hypertrophy develop as a pathologic response to an array of insults, such as myocardial infarctions, chronic systemic hypertension, and valvular defects. Due to the high prevalence of such conditions, there is an increasing n...

  • Perspective
  • Open Access
806 Views
15 Pages

9 December 2025

Protein–protein interactions (PPIs) are fundamental to viral replication, regulating transcription, assembly, and genome packaging. Despite their biological importance, few FDA-approved therapeutics directly target these complexes. The split lu...

  • Article
  • Open Access
6 Citations
2,761 Views
16 Pages

25 August 2022

Kaposi’s sarcoma-associated herpesvirus (KSHV) is the etiologic agent of Kaposi’s sarcoma, primary effusion lymphoma (PEL), and multicentric Castleman’s disease. During KSHV lytic infection, lytic-related genes, categorized as immed...

  • Review
  • Open Access
28 Citations
7,790 Views
25 Pages

Precision Medicine in Neurology: The Inspirational Paradigm of Complement Therapeutics

  • Maria Gavriilaki,
  • Vasilios K. Kimiskidis and
  • Eleni Gavriilaki

26 October 2020

Precision medicine has emerged as a central element of healthcare science. Complement, a component of innate immunity known for centuries, has been implicated in the pathophysiology of numerous incurable neurological diseases, emerging as a potential...

  • Article
  • Open Access
8 Citations
7,427 Views
19 Pages

9 October 2013

Plant-infecting viruses of the genera Alpha- and Betacryptovirus within the family Partitiviridae cause no visible effects on their hosts and are only transmitted by cell division and through gametes. The bipartite dsRNA genome is encoding a RNA-de...

  • Review
  • Open Access
30 Citations
7,703 Views
14 Pages

The Role of Complement in Angiogenesis

  • Maciej M. Markiewski,
  • Elizabeth Daugherity,
  • Britney Reese and
  • Magdalena Karbowniczek

1 December 2020

The link of the complement system to angiogenesis has remained circumstantial and speculative for several years. Perhaps the most clinically relevant example of possible involvement of complement in pathological neovascularization is age-related macu...

  • Review
  • Open Access
12 Citations
9,344 Views
25 Pages

8 February 2023

Sertoli cells within the testis are instrumental in providing an environment for spermatogenesis and protecting the developing germ cells from detrimental immune responses which could affect fertility. Though these immune responses consist of many im...

  • Review
  • Open Access
21 Citations
7,533 Views
29 Pages

Complement Proteins as Soluble Pattern Recognition Receptors for Pathogenic Viruses

  • Valarmathy Murugaiah,
  • Praveen M. Varghese,
  • Nazar Beirag,
  • Syreeta De Cordova,
  • Robert B. Sim and
  • Uday Kishore

2 May 2021

The complement system represents a crucial part of innate immunity. It contains a diverse range of soluble activators, membrane-bound receptors, and regulators. Its principal function is to eliminate pathogens via activation of three distinct pathway...

  • Systematic Review
  • Open Access
2,455 Views
14 Pages

22 May 2024

Background: Asthma is a chronic inflammatory airway disease characterized by recurrent symptoms in response to a wide range of external stimuli, including allergens, viral infections, and air pollution together with internal host-derived danger signa...

  • Review
  • Open Access
4 Citations
6,811 Views
20 Pages

25 January 2024

The organs of the male reproductive tract, including the testis, epididymis, prostate, seminal vesicles, and semen, must provide an immunoregulatory environment conducive to germ cell viability and successful fertilization. Many immune components, su...

  • Review
  • Open Access
7 Citations
4,848 Views
21 Pages

The Defensive Interactions of Prominent Infectious Protozoan Parasites: The Host’s Complement System

  • Sajad Rashidi,
  • Reza Mansouri,
  • Mohammad Ali-Hassanzadeh,
  • Antonio Muro,
  • Paul Nguewa and
  • Raúl Manzano-Román

26 October 2022

The complement system exerts crucial functions both in innate immune responses and adaptive humoral immunity. This pivotal system plays a major role dealing with pathogen invasions including protozoan parasites. Different pathogens including parasite...

  • Feature Paper
  • Review
  • Open Access
19 Citations
6,641 Views
16 Pages

Complement and Cancer—A Dysfunctional Relationship?

  • Joshua M. Thurman,
  • Jennifer Laskowski and
  • Raphael A. Nemenoff

5 November 2020

Although it was long believed that the complement system helps the body to identify and remove transformed cells, it is now clear that complement activation contributes to carcinogenesis and can also help tumors to escape immune-elimination. Compleme...

  • Review
  • Open Access
1 Citations
2,329 Views
21 Pages

Complement Cascades and Brain Disorders

  • Ivana Jovčevska,
  • Alja Videtič Paska and
  • Katarina Kouter

17 August 2025

The complement system is a vital component of innate immunity. Besides its roles in pathogen defense, its significance in neurodevelopment, neurodegeneration, and cancer progression is beginning to be recognized. We performed a comprehensive literatu...

  • Article
  • Open Access
17 Citations
4,408 Views
20 Pages

Complement-Opsonized Nano-Carriers Are Bound by Dendritic Cells (DC) via Complement Receptor (CR)3, and by B Cell Subpopulations via CR-1/2, and Affect the Activation of DC and B-1 Cells

  • Monika Bednarczyk,
  • Carolina Medina-Montano,
  • Frederic Julien Fittler,
  • Henner Stege,
  • Meike Roskamp,
  • Michael Kuske,
  • Christian Langer,
  • Marco Vahldieck,
  • Evelyn Montermann and
  • Matthias Bros
  • + 4 authors

The development of nanocarriers (NC) for biomedical applications has gained large interest due to their potential to co-deliver drugs in a cell-type-targeting manner. However, depending on their surface characteristics, NC accumulate serum factors, t...

  • Article
  • Open Access
24 Citations
5,134 Views
12 Pages

The Impact of Complement Genes on the Risk of Late-Onset Alzheimer’s Disease

  • Sarah M. Carpanini,
  • Janet C. Harwood,
  • Emily Baker,
  • Megan Torvell,
  • The GERAD1 Consortium,
  • Rebecca Sims,
  • Julie Williams and
  • B. Paul Morgan

20 March 2021

Late-onset Alzheimer’s disease (LOAD), the most common cause of dementia, and a huge global health challenge, is a neurodegenerative disease of uncertain aetiology. To deliver effective diagnostics and therapeutics, understanding the molecular basis...

  • Review
  • Open Access
809 Views
29 Pages

Redox Regulation of Complement Pathway Activation in Aging and Related Diseases

  • Shirin Ferdowsi,
  • Srividya Arjuna,
  • Sudharshan SJ and
  • Rahima Zennadi

24 December 2025

Aging is a complex degenerative process characterized by the accumulation of molecular damage and a heightened susceptibility to disease. The oxidative stress theory of aging identifies endogenous reactive oxygen species (ROS) as primary drivers of t...

  • Review
  • Open Access
17 Citations
4,184 Views
20 Pages

The Role of Complement Dysregulation in Glaucoma

  • Cindy Hoppe and
  • Meredith Gregory-Ksander

15 February 2024

Glaucoma is a progressive neurodegenerative disease characterized by damage to the optic nerve that results in irreversible vision loss. While the exact pathology of glaucoma is not well understood, emerging evidence suggests that dysregulation of th...

  • Review
  • Open Access
14 Citations
5,809 Views
15 Pages

Schizophrenia: Complement Cleaning or Killing

  • Jirrine T.T. Hogenaar and
  • Hans van Bokhoven

11 February 2021

Schizophrenia is a psychiatric disorder with a typical onset occurring during adolescence or young adulthood. The heterogeneity of the disorder complicates our understanding of the pathophysiology. Reduced cortical synaptic densities are commonly obs...

  • Review
  • Open Access
42 Citations
10,021 Views
24 Pages

Age-Related Macular Degeneration: A Disease of Systemic or Local Complement Dysregulation?

  • Alasdair Warwick,
  • Samir Khandhadia,
  • Sarah Ennis and
  • Andrew Lotery

3 November 2014

Age-related macular degeneration (AMD) is the leading cause of irreversible blindness in developed countries. The role of complement in the development of AMD is now well-established. While some studies show evidence of complement dysregulation withi...

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