Somalogic, Incorporated

Quest Diagnostics Investments, Inc.

Chris Bock

Larry M Gold

Bruce Eaton

Daniel J Schneider

Dominic Zichi

Sheri K Wilcox

Thale Jarvis

Weimin Sun

Charles M Strom

Jeff Aldred

Malti P Nikrad

Bharat Nathu Gawande

Stephan Kraemer

Alexis Stuart Foreman

Jeffrey D Carter

Jonathan Vaught

Deborah Ayers

Jennifer C Bertino

Tracy R Keeney

Noh Jin Park

Thale C Jarvis

The present disclosure describes improved SELEX methods for producing aptamers that are capable of binding to target molecules and improved photoSELEX methods for producing photoreactive aptamers that are capable of both binding and covalently crosslinking to target molecules. Specifically, the present disclosure describes methods for producing aptamers and photoaptamers having slower dissociation rate constants than are obtained using prior SELEX and photoSELEX methods. The disclosure further describes aptamers and photoaptamers having slower dissociation rate constants than those obtained using prior methods. In addition, the disclosure describes aptamer constructs that include a variety of functionalities, including a cleavable element, a detection element, and a capture or immobilization element.

Method for generating aptamers with improved off-rates

The present invention provides aptamers that specifically bind to the EGF receptor in a sample, and diagnostic and analytical methods using those aptamers. In some embodiments, the aptamers include a 3' cap. In some embodiments, the 3&#x2032; cap is an inverted deoxythymidine. In some embodiments the aptamers include a spacer and at least one moiety selected from the group consisting of binding pair member and a detectable label, wherein the spacer is attached to the 5&#x2032;-end of the aptamer and the moiety is attached the 5&#x2032; end of the spacer. In some embodiments the spacer is hexaethylene glycol. In some embodiments, the binding pair member biotin. In some embodiments the detectable label is a fluorophore.

Aptamers and diagnostic methods for detecting the EGF receptor

The present disclosure describes the identification and use of aptamers and photoaptamers having slower dissociation rate constants than those obtained using previously described methods. Specifically, the present disclosure describes methods for the identification and use of aptamers to one or more targets within a histological or cytological sample, which have slow rates of dissociation. The aptamers may be used to assess localization, relative density, and presence or absence of one or more targets in cytological and histological samples. Targets may be selected that are specific and diagnostic of a given disease state for which the sample was collected. The aptamers may also be used to introduce target specific signal moieties. In addition to target identification, the aptamers may be used to amplify signal generation through a variety of methods.

Embodiments provide a slide assembly device having a static tooling base which is statically and solidly affixed to a base such as a table and a moveable tooling arm that is rotatable about a hinge connected to the static tooling base, so that moveable tooling arm rotates about the hinge in a manner similar to a book cover opening and closing. The embodiments further provide an upper slide chuck that is removably attachable to the moveable tooling arm and a lower slide receiver that is removably attachable to the static tooling base. The upper slide chuck is configured to hold an experimental slide via a vacuum mechanism to engagedly hold the experimental slide to the upper slide chuck while the moveable tooling arm is rotated about the hinge from an open-book position to a closed-book position.

Device and method to accurately and easily assemble glass slides

The present disclosure is directed to the field of nucleic acid chemistry, specifically to 5-position modified uridines, as well as, oligonucleotides comprising said 5-position modified uridines. The present disclosure describes methods for producing aptamers comprising said 5-position modified uridines that are capable of binding to target molecules.

The present disclosure describes methods for producing aptamers and photoaptamers having slower dissociation rate constants than are obtained using prior SELEX and photoSELEX methods. The disclosure further describes aptamers and photoaptamers having slower dissociation rate constants than those obtained using prior methods. This invention relates to the field of diagnostic histology, cytology, histopathology, and cytopathology methods and reagents for the detection of various disease states. More specifically, the invention relates to the use of aptamers in histologic, cytologic, histopathic, and/or cytopathic diagnostic methods. Aptamers may be provided that react with specific target molecules contained within a histological or cytological sample. Aptamers may be used to assess localization, relative density, and presence or absence of one or more target. Targets may be selected that are specific and diagnostic of a given disease state for which the sample was collected. Aptamers may be used to introduce target specific signal moieties. Antigen retrieval methods may be applied to the sample prior to reaction with the specific aptamer/s to improve interaction of the aptamer and target within the sample. Or aptamers may be developed for the specific target that eliminates the need for the antigen retrieval process. In addition to target identification, aptamers may be used to amplify signal generation through a variety of methods.

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Denver, CO, United States of America

Chris Bock