Draft:Compact Sequencing

  • Comment: Possibly notable, but the sourcing isn't good enough. Ref. 1 is fine, but Refs. 2-5 are primary and/or non-independent, and the rest aren't about the subject. Tone is also somewhat promotional. The formatting and malformed references are suggestive of AI use; this is not forbidden but requires extreme attention to detail with the referencing, to make sure that all sources are cited for statements they actually make. WeirdNAnnoyed (talk) 22:31, 30 March 2026 (UTC)


"Compact Sequencing" is a molecular diagnostic method based on a cylindrical microarray, the so-called “hybcell”.[1][2]

hybcell core: cylindrical microarray containing immobilized probes on the surface for compact sequencing

The method combines Polymerase chain reaction (PCR) with array-based detection for the parallel analysis of multiple genetic targets. These may include pathogenic microorganisms, antimicrobial resistance markers, or genetic mutations relevant to infectious diseases and cancer.[1][3][4]

The workflow typically involves amplification of target nucleic acids by PCR, during which the products are fluorescently labelled. The labelled amplicons are then applied to the hybcell, where complementary sequences hybridize to immobilized probes on the array surface. Hybridization is followed by enzymatic processing and washing steps to increase specificity, and fluorescence signals are detected and analysed computationally to determine the presence of specific targets.[1][2]

The cylindrical design of the hybcell distinguishes it from conventional planar microarrays. This geometry facilitates controlled distribution of reagents and temperature and allows integration into automated processing systems. The technology has been applied in molecular diagnostics including the detection of pathogens and clinically relevant genetic markers, for example in infectious disease diagnostics such as sepsis and bloodstream infections.[1][2][4]

History and Development

The hybcell is the world's first cylindrical microarray. Dr. Bernhard Ronacher, the inventor of the compact sequencing technology, headed the molecular diagnostics laboratory of Lambda GmbH, which started out during the years 2000 to 2002. There he established the DNA array technology.

The underlying technology for compact sequencing has been described in patent applications, including a device for thermally regulating a rotationally symmetrical container (hybcell) used for nucleic acid detection.[3] Ever since, the technology has found application in diverse fields including Oncology, Microbiology and Sepsis, with a global impact in hospitals and diagnostic laboratories.[4][1][5] The technology has also been described in peer-reviewed publications.[1][2][6]

The technology has been commercialised by Cube Dx, which develops diagnostic assays based on the hybcell platform. In 2023, the invention received the Houska Prize, winning first place in the Research & Development category in Austria.[7][8]

Technology and Method

Compact sequencing is a molecular diagnostic method that combines PCR amplification with array-based detection. Hybcells can be configured for DNA, protein, or small-molecule detection. Most applications require analysis on DNA or RNA-level, such as for example the detection of pathogens (e.g., bacterial, viral, or fungal pathogens) or drug-resistances. [9][1][2]

Extracted DNA or RNA is amplified using PCR or reverse-transcription PCR. Fluorescently labelled amplicons are then applied to the hybcell, containing immobilized probes corresponding to specific target sequences. Enzymatic extension of bound DNA and subsequent stringent washing allow distinction of sequences differing by a single nucleotide. The resulting fluorescence patterns are analysed computationally and reflect the presence of target sequences in the original sample.[1][8][2]

Hybcell

hybcell cartridge: assembled cartridge for automated processing processing in compact sequencing

The hybcell consists of a core, tube, lid, and handling tray. Up to 2,000 biomolecule spots, including DNA, proteins, or small molecules, are printed on the coated surface of the hybcell core. During analysis, the core rotates within the sample-containing tube to facilitate uniform contact with the hybridization solution, after which fluorescence detection provides data for downstream analysis.[1][2]

Hyborg

The Hyborg device automates hybcell processing, including hybridization, washing, and fluorescence scanning. It processes multiple hybcells per run and generates digital output for analysis. Software associated with the device interprets fluorescence patterns to provide qualitative information on the presence of target sequences, including species identification or detection of specific point mutations.[1][2][3]

Applications

Compact sequencing and the hybcell technology have found application in diverse fields, and are primarily focused on infectious disease diagnostics, such as pneumonia and bloodstream infections. Other applications include the detection of relevant point mutations in SARS CoV-2 spike protein or KRAS mutation testing in cancer diagnosis.[1][8]

Beyond human diagnostics, compact sequencing has been adapted for example for wastewater monitoring and epidemiological surveillance.[10]

Relevance in Sepsis

Sepsis is one of the most common diseases and causes of death worldwide.[11] Successful treatment and survival depend heavily on the early identification of causative pathogens.[12] Traditional methods, including pathogen visualization by microscopy and culture-based techniques, typically require around 24 hours for results. Rapid molecular assays are increasingly used for timely identification of pathogens.[12][6] Timely qualitative information about the pathogens present in the sample can aid treatment decisions including the administration or de-escalation of antibiotics, antimycotics and other measures.[6][12]

Comparison to Other Methods

The prelude method to the hybcell is the planar microarray, which is conventionally used in molecular diagnostics. However, processing times and hands-on time have hampered routine diagnostic use.[13] By its cylindrical design and automated processing, the hybcell facilitates uniform reagent distribution resulting in shorter processing times and increased accuracy.[1][14]

A study directly comparing the method with state-of-the-art next-generation sequencing methods such as pyrosequencing, Sanger sequencing, and 454 sequencing showed, that compact sequencing is suitable for applications requiring timely qualitative identification of clinically relevant point mutations, as it provides parallel detection of multiple targets within a panel.[1] However, as a targeted method, compact sequencing is limited in that it does not provide exhaustive sequence information.[1][6]

Specifically in the area of molecular diagnostics, rapid molecular assays are increasingly used to complement blood culture techniques in the diagnosis of infections.[6] These molecular techniques are based on the detection of small biomolecules rather than viable organisms which infers a lower sensitivity - as there is no signal amplification by cell growth - but also a reduced bias towards fast-growing organisms.[6] While rapid molecular assays, including compact sequencing, bear the benefit of timely indication, blood culture remains essential to identify phenotypic characteristics of microorganisms and giving definite information on the presence of viable pathogens.[6][15]

References

  1. ^ a b c d e f g h i j k l m n Introduction of the Hybcell-Based Compact Sequencing Technology and Comparison to State-of-the-Art Methodologies for KRAS Mutation Detection. Vol. 58. March 2015. pp. 126–134. doi:10.2144/000114264. ISSN 0736-6205.
  2. ^ a b c d e f g h Ronacher, Bernhard; Mitterhuemer, S.; Eisenberger, S. (2010-05-01). "OnSpot Primer Extension for mini-sequencing analysis: a fast and efficient method to verify hundreds of gene sequences of interest in parallel, utilizing Anagnostic's hybcell technology: A15". Clinical Chemistry and Laboratory Medicine. 48 (5). doi:10.1515/cclm.2010.48.issue-5. ISSN 1437-4331.
  3. ^ a b c Ronacher, Bernhard (Aug 14, 2009). Kim, Young J (ed.). "U.S. Patent for Device for thermally regulating a rotationally symmetrical container Patent (Patent # 8,986,934)". JUSTIA. Patent number: 8986934.{{cite web}}: CS1 maint: url-status (link)
  4. ^ a b c Regitnig-Tillian, Norbert (6 August 2023). "Schnelle Hilfe bei Blutvergiftung - Forschungs-Oscar für Durchbruch in Sepsisdiagnostik". DER STANDARD (in German).{{cite news}}: CS1 maint: url-status (link)
  5. ^ "Cube Dx | Home". www.cubedx.com. Retrieved 2026-04-01.
  6. ^ a b c d e f g Rapszky, Gabriella Anna; Do To, Uyen Nguyen; Kiss, Veronika Eszter; Kói, Tamás; Walter, Anna; Gergő, Dorottya; Meznerics, Fanni Adél; Rakovics, Márton; Váncsa, Szilárd; Kemény, Lajos Vince; Csupor, Dezső; Hegyi, Péter; Filbin, Michael R.; Varga, Csaba; Fenyves, Bánk G. (January 2025). "Rapid molecular assays versus blood culture for bloodstream infections: a systematic review and meta-analysis". eClinicalMedicine. 79: 103028. doi:10.1016/j.eclinm.2024.103028. ISSN 2589-5370. PMC 11833021. PMID 39968206.{{cite journal}}: CS1 maint: article number as page number (link)
  7. ^ "1st Prize: Compact Sequencing - An Early Sepsis Diagnosis". B&C-Gruppe. Retrieved 2026-03-10.
  8. ^ a b c "Cube Dx | Home" (in German). Retrieved 2026-03-10.
  9. ^ Pilecky, Matthias; Schildberger, Anita; Orth-Höller, Dorothea; Weber, Viktoria (2019-05-01). "Pathogen enrichment from human whole blood for the diagnosis of bloodstream infection: Prospects and limitations". Diagnostic Microbiology and Infectious Disease. 94 (1): 7–14. doi:10.1016/j.diagmicrobio.2018.11.015. ISSN 0732-8893.
  10. ^ "Abwassermonitoring". Retrieved 2026-03-10.
  11. ^ Global, regional, and national sepsis incidence and mortality, 1990–2017: analysis for the Global Burden of Disease Study. Vol. 395. January 2020. pp. 200–211. doi:10.1016/S0140-6736(19)32989-7.
  12. ^ a b c Sepsis: definition, epidemiology, and diagnosis. Vol. 335. 2007-10-27. pp. 879–883. doi:10.1136/bmj.39346.495880.AE. ISSN 0959-8138.
  13. ^ Marzancola, Mahsa Gharibi; Sedighi, Abootaleb; Li, Paul C. H. (2016), Li, Paul C.H.; Sedighi, Abootaleb; Wang, Lin (eds.), "DNA Microarray-Based Diagnostics", Microarray Technology: Methods and Applications, New York, NY: Springer, pp. 161–178, doi:10.1007/978-1-4939-3136-1_12, ISBN 978-1-4939-3136-1, retrieved 2026-04-01{{citation}}: CS1 maint: work parameter with ISBN (link)
  14. ^ Yoo, Seung Min; Keum, Ki Chang; Yoo, So Young; Choi, Jun Yong; Chang, Kyung Hee; Yoo, Nae Choon; Yoo, Won Min; Kim, June Myung; Lee, Duke; Lee, Sang Yup (April 2004). "Development of DNA microarray for pathogen detection". Biotechnology and Bioprocess Engineering. 9 (2): 93–99. doi:10.1007/bf02932990. ISSN 1226-8372.
  15. ^ Burnham, Carey-Ann D; Yarbrough, Melanie L (2019-01-01). "Best Practices for Detection of Bloodstream Infection". The Journal of Applied Laboratory Medicine. 3 (4): 740–742. doi:10.1373/jalm.2018.026260. ISSN 2576-9456.

Category:Genetics Category:Molecular biology Category:Medical diagnosis

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